2024-08-26 12:00:33 +00:00
27 changed files with 517 additions and 510 deletions
--- a/src/App.scss
+++ b/src/App.scss
@ -69,3 +69,61 @@ a {
 input {
  font-family: inherit;
 }
+
+// Shared styles for center content (Create, Sign, Verify)
+.files-wrapper {
+  display: flex;
+  flex-direction: column;
+  gap: 25px;
+}
+
+.file-wrapper {
+  display: flex;
+  flex-direction: column;
+  gap: 15px;
+  position: relative;
+
+  // CSS, scroll position when scrolling to the files is adjusted by
+  // - first-child Header height, default body padding, and center content border (10px) and padding (10px)
+  // - others We don't include border and padding and scroll to the top of the image
+  &:first-child {
+    scroll-margin-top: $header-height + $body-vertical-padding + 20px;
+  }
+  &:not(:first-child) {
+    scroll-margin-top: $header-height + $body-vertical-padding;
+  }
+}
+
+.image-wrapper {
+  position: relative;
+  -webkit-user-select: none;
+  user-select: none;
+
+  overflow: hidden; /* Ensure no overflow */
+
+  > img {
+    display: block;
+    max-width: 100%;
+    max-height: 100%;
+    object-fit: contain; /* Ensure the image fits within the container */
+  }
+}
+
+[data-dev='true'] {
+  .image-wrapper {
+    // outline: 1px solid #ccc; /* Optional: for visual debugging */
+    background-color: #e0f7fa; /* Optional: for visual debugging */
+  }
+}
+
+.extension-file-box {
+  border-radius: 4px;
+  background: rgba(255, 255, 255, 0.5);
+  height: 100px;
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  align-items: center;
+  color: rgba(0, 0, 0, 0.25);
+  font-size: 14px;
+}
--- a/src/components/DrawPDFFields/index.tsx
+++ b/src/components/DrawPDFFields/index.tsx
@ -2,7 +2,6 @@ import { Close } from '@mui/icons-material'
 import {
  Box,
  CircularProgress,
-  Divider,
  FormControl,
  InputLabel,
  MenuItem,
@ -10,19 +9,15 @@ import {
 } from '@mui/material'
 import styles from './style.module.scss'
 import React, { useEffect, useState } from 'react'
-
 import * as PDFJS from 'pdfjs-dist'
 import { ProfileMetadata, User, UserRole } from '../../types'
-import {
-  PdfFile,
-  MouseState,
-  PdfPage,
-  DrawnField,
-  DrawTool
-} from '../../types/drawing'
+import { MouseState, PdfPage, DrawnField, DrawTool } from '../../types/drawing'
 import { truncate } from 'lodash'
-import { extractFileExtension, hexToNpub } from '../../utils'
-import { toPdfFiles } from '../../utils/pdf.ts'
+import { settleAllFullfilfedPromises, hexToNpub } from '../../utils'
+import { getSigitFile, SigitFile } from '../../utils/file'
+import { FileDivider } from '../FileDivider'
+import { ExtensionFileBox } from '../ExtensionFileBox'
+
 PDFJS.GlobalWorkerOptions.workerSrc = new URL(
  'pdfjs-dist/build/pdf.worker.min.mjs',
  import.meta.url
@ -32,15 +27,15 @@ interface Props {
  selectedFiles: File[]
  users: User[]
  metadata: { [key: string]: ProfileMetadata }
-  onDrawFieldsChange: (pdfFiles: PdfFile[]) => void
+  onDrawFieldsChange: (sigitFiles: SigitFile[]) => void
  selectedTool?: DrawTool
 }

 export const DrawPDFFields = (props: Props) => {
  const { selectedFiles, selectedTool, onDrawFieldsChange, users } = props

-  const [pdfFiles, setPdfFiles] = useState<PdfFile[]>([])
-  const [parsingPdf, setParsingPdf] = useState<boolean>(false)
+  const [sigitFiles, setSigitFiles] = useState<SigitFile[]>([])
+  const [parsingPdf, setIsParsing] = useState<boolean>(false)

  const [mouseState, setMouseState] = useState<MouseState>({
    clicked: false
@ -49,42 +44,43 @@ export const DrawPDFFields = (props: Props) => {
  useEffect(() => {
    if (selectedFiles) {
      /**
-       * Reads the pdf binary files and converts it's pages to images
-       * creates the pdfFiles object and sets to a state
+       * Reads the binary files and converts to internal file type
+       * and sets to a state (adds images if it's a PDF)
       */
-      const parsePdfPages = async () => {
-        const pdfFiles: PdfFile[] = await toPdfFiles(selectedFiles)
+      const parsePages = async () => {
+        const files = await settleAllFullfilfedPromises(
+          selectedFiles,
+          getSigitFile
+        )

-        setPdfFiles(pdfFiles)
+        setSigitFiles(files)
      }

-      setParsingPdf(true)
+      setIsParsing(true)

-      parsePdfPages().finally(() => {
-        setParsingPdf(false)
+      parsePages().finally(() => {
+        setIsParsing(false)
      })
    }
  }, [selectedFiles])

  useEffect(() => {
-    if (pdfFiles) onDrawFieldsChange(pdfFiles)
-  }, [onDrawFieldsChange, pdfFiles])
+    if (sigitFiles) onDrawFieldsChange(sigitFiles)
+  }, [onDrawFieldsChange, sigitFiles])

  /**
   * Drawing events
   */
  useEffect(() => {
-    // window.addEventListener('mousedown', onMouseDown);
    window.addEventListener('mouseup', onMouseUp)

    return () => {
-      // window.removeEventListener('mousedown', onMouseDown);
      window.removeEventListener('mouseup', onMouseUp)
    }
  }, [])

  const refreshPdfFiles = () => {
-    setPdfFiles([...pdfFiles])
+    setSigitFiles([...sigitFiles])
  }

  /**
@ -303,10 +299,10 @@ export const DrawPDFFields = (props: Props) => {
  ) => {
    event.stopPropagation()

-    pdfFiles[pdfFileIndex].pages[pdfPageIndex].drawnFields.splice(
-      drawnFileIndex,
-      1
-    )
+    const pages = sigitFiles[pdfFileIndex]?.pages
+    if (pages) {
+      pages[pdfPageIndex]?.drawnFields?.splice(drawnFileIndex, 1)
+    }
  }

  /**
@ -345,14 +341,17 @@ export const DrawPDFFields = (props: Props) => {
  /**
   * Renders the pdf pages and drawing elements
   */
-  const getPdfPages = (pdfFile: PdfFile, pdfFileIndex: number) => {
+  const getPdfPages = (file: SigitFile, fileIndex: number) => {
+    // Early return if this is not a pdf
+    if (!file.isPdf) return null
+
    return (
      <>
-        {pdfFile.pages.map((page, pdfPageIndex: number) => {
+        {file.pages?.map((page, pageIndex: number) => {
          return (
            <div
-              key={pdfPageIndex}
-              className={`${styles.pdfImageWrapper} ${selectedTool ? styles.drawing : ''}`}
+              key={pageIndex}
+              className={`image-wrapper ${styles.pdfImageWrapper} ${selectedTool ? styles.drawing : ''}`}
            >
              <img
                onMouseMove={(event) => {
@ -393,8 +392,8 @@ export const DrawPDFFields = (props: Props) => {
                      onMouseDown={(event) => {
                        onRemoveHandleMouseDown(
                          event,
-                          pdfFileIndex,
-                          pdfPageIndex,
+                          fileIndex,
+                          pageIndex,
                          drawnFieldIndex
                        )
                      }}
@ -469,38 +468,24 @@ export const DrawPDFFields = (props: Props) => {
    )
  }

-  if (!pdfFiles.length) {
+  if (!sigitFiles.length) {
    return ''
  }

  return (
-    <div className={styles.view}>
-      {selectedFiles.map((file, i) => {
+    <div className="files-wrapper">
+      {sigitFiles.map((file, i) => {
        const name = file.name
-        const extension = extractFileExtension(name)
-        const pdfFile = pdfFiles.find((pdf) => pdf.file.name === name)
        return (
          <React.Fragment key={name}>
-            <div
-              className={`${styles.fileWrapper} ${styles.scrollTarget}`}
-              id={`file-${name}`}
-            >
-              {pdfFile ? (
-                getPdfPages(pdfFile, i)
+            <div className="file-wrapper" id={`file-${name}`}>
+              {file.isPdf ? (
+                getPdfPages(file, i)
              ) : (
-                <div className={'otherFile'}>This is a {extension} file</div>
+                <ExtensionFileBox extension={file.extension} />
              )}
            </div>
-            {i < selectedFiles.length - 1 && (
-              <Divider
-                sx={{
-                  fontSize: '12px',
-                  color: 'rgba(0,0,0,0.15)'
-                }}
-              >
-                File Separator
-              </Divider>
-            )}
+            {i < selectedFiles.length - 1 && <FileDivider />}
          </React.Fragment>
        )
      })}
--- a/src/components/DrawPDFFields/style.module.scss
+++ b/src/components/DrawPDFFields/style.module.scss
@ -8,17 +8,6 @@
 }

 .pdfImageWrapper {
-  position: relative;
-  -webkit-user-select: none;
-  user-select: none;
-
-  > img {
-    display: block;
-    max-width: 100%;
-    max-height: 100%;
-    object-fit: contain; /* Ensure the image fits within the container */
-  }
-
  &.drawing {
    cursor: crosshair;
  }
@ -90,17 +79,3 @@
    padding: 5px 0;
  }
 }
-
-.fileWrapper {
-  display: flex;
-  flex-direction: column;
-  gap: 15px;
-  position: relative;
-  scroll-margin-top: $header-height + $body-vertical-padding;
-}
-
-.view {
-  display: flex;
-  flex-direction: column;
-  gap: 25px;
-}
--- a/src/components/ExtensionFileBox.tsx
+++ b/src/components/ExtensionFileBox.tsx
@ -0,0 +1,6 @@
+interface ExtensionFileBoxProps {
+  extension: string
+}
+export const ExtensionFileBox = ({ extension }: ExtensionFileBoxProps) => (
+  <div className="extension-file-box">This is a {extension} file</div>
+)
--- a/src/components/FileDivider.tsx
+++ b/src/components/FileDivider.tsx
@ -0,0 +1,12 @@
+import Divider from '@mui/material/Divider/Divider'
+
+export const FileDivider = () => (
+  <Divider
+    sx={{
+      fontSize: '12px',
+      color: 'rgba(0,0,0,0.15)'
+    }}
+  >
+    File Separator
+  </Divider>
+)
--- a/src/components/FileList/index.tsx
+++ b/src/components/FileList/index.tsx
@ -24,19 +24,23 @@ const FileList = ({
    <div className={styles.wrap}>
      <div className={styles.container}>
        <ul className={styles.files}>
-          {files.map((file: CurrentUserFile) => (
+          {files.map((currentUserFile: CurrentUserFile) => (
            <li
-              key={file.id}
-              className={`${styles.fileItem} ${isActive(file) && styles.active}`}
-              onClick={() => setCurrentFile(file)}
+              key={currentUserFile.id}
+              className={`${styles.fileItem} ${isActive(currentUserFile) && styles.active}`}
+              onClick={() => setCurrentFile(currentUserFile)}
            >
-              <div className={styles.fileNumber}>{file.id}</div>
+              <div className={styles.fileNumber}>{currentUserFile.id}</div>
              <div className={styles.fileInfo}>
-                <div className={styles.fileName}>{file.filename}</div>
+                <div className={styles.fileName}>
+                  {currentUserFile.file.name}
+                </div>
              </div>

              <div className={styles.fileVisual}>
-                {file.isHashValid && <FontAwesomeIcon icon={faCheck} />}
+                {currentUserFile.isHashValid && (
+                  <FontAwesomeIcon icon={faCheck} />
+                )}
              </div>
            </li>
          ))}
--- a/src/components/PDFView/PdfItem.tsx
+++ b/src/components/PDFView/PdfItem.tsx
@ -1,13 +1,13 @@
-import { PdfFile } from '../../types/drawing.ts'
 import { CurrentUserMark, Mark } from '../../types/mark.ts'
-import { extractFileExtension } from '../../utils/meta.ts'
+import { SigitFile } from '../../utils/file.ts'
+import { ExtensionFileBox } from '../ExtensionFileBox.tsx'
 import PdfPageItem from './PdfPageItem.tsx'

 interface PdfItemProps {
  currentUserMarks: CurrentUserMark[]
  handleMarkClick: (id: number) => void
  otherUserMarks: Mark[]
-  pdfFile: PdfFile | File
+  file: SigitFile
  selectedMark: CurrentUserMark | null
  selectedMarkValue: string
 }
@ -16,7 +16,7 @@ interface PdfItemProps {
 * Responsible for displaying pages of a single Pdf File.
 */
 const PdfItem = ({
-  pdfFile,
+  file,
  currentUserMarks,
  handleMarkClick,
  selectedMarkValue,
@ -32,8 +32,8 @@ const PdfItem = ({
  const filterMarksByPage = (marks: Mark[], page: number): Mark[] => {
    return marks.filter((mark) => mark.location.page === page)
  }
-  if ('pages' in pdfFile) {
-    return pdfFile.pages.map((page, i) => {
+  if (file.isPdf) {
+    return file.pages?.map((page, i) => {
      return (
        <PdfPageItem
          page={page}
@ -47,8 +47,7 @@ const PdfItem = ({
      )
    })
  } else {
-    const extension = extractFileExtension(pdfFile.name)
-    return <div className={'otherFile'}>This is a {extension} file</div>
+    return <ExtensionFileBox extension={file.extension} />
  }
 }

--- a/src/components/PDFView/PdfMarking.tsx
+++ b/src/components/PDFView/PdfMarking.tsx
@ -10,7 +10,6 @@ import {
 import { EMPTY } from '../../utils/const.ts'
 import { Container } from '../Container'
 import signPageStyles from '../../pages/sign/style.module.scss'
-import styles from './style.module.scss'
 import { CurrentUserFile } from '../../types/file.ts'
 import FileList from '../FileList'
 import { StickySideColumns } from '../../layouts/StickySideColumns.tsx'
@ -134,9 +133,7 @@ const PdfMarking = (props: PdfMarkingProps) => {
          }
          right={meta !== null && <UsersDetails meta={meta} />}
        >
-          <div className={styles.container}>
          {currentUserMarks?.length > 0 && (
-              <div className={styles.pdfView}>
            <PdfView
              currentFile={currentFile}
              files={files}
@ -146,9 +143,7 @@ const PdfMarking = (props: PdfMarkingProps) => {
              currentUserMarks={currentUserMarks}
              otherUserMarks={otherUserMarks}
            />
-              </div>
          )}
-          </div>
        </StickySideColumns>
        {selectedMark !== null && (
          <MarkFormField
--- a/src/components/PDFView/PdfPageItem.tsx
+++ b/src/components/PDFView/PdfPageItem.tsx
@ -28,20 +28,14 @@ const PdfPageItem = ({
  useEffect(() => {
    if (selectedMark !== null && !!markRefs.current[selectedMark.id]) {
      markRefs.current[selectedMark.id]?.scrollIntoView({
-        behavior: 'smooth',
-        block: 'end'
+        behavior: 'smooth'
      })
    }
  }, [selectedMark])
  const markRefs = useRef<(HTMLDivElement | null)[]>([])
  return (
-    <div
-      className={styles.pdfImageWrapper}
-      style={{
-        border: '1px solid #c4c4c4'
-      }}
-    >
-      <img draggable="false" src={page.image} style={{ width: '100%' }} />
+    <div className={`image-wrapper ${styles.pdfImageWrapper}`}>
+      <img draggable="false" src={page.image} />
      {currentUserMarks.map((m, i) => (
        <div key={i} ref={(el) => (markRefs.current[m.id] = el)}>
          <PdfMarkItem
--- a/src/components/PDFView/index.tsx
+++ b/src/components/PDFView/index.tsx
@ -1,8 +1,9 @@
-import { Divider } from '@mui/material'
 import PdfItem from './PdfItem.tsx'
 import { CurrentUserMark, Mark } from '../../types/mark.ts'
 import { CurrentUserFile } from '../../types/file.ts'
 import { useEffect, useRef } from 'react'
+import { FileDivider } from '../FileDivider.tsx'
+import React from 'react'

 interface PdfViewProps {
  currentFile: CurrentUserFile | null
@ -29,10 +30,7 @@ const PdfView = ({
  const pdfRefs = useRef<(HTMLDivElement | null)[]>([])
  useEffect(() => {
    if (currentFile !== null && !!pdfRefs.current[currentFile.id]) {
-      pdfRefs.current[currentFile.id]?.scrollIntoView({
-        behavior: 'smooth',
-        block: 'end'
-      })
+      pdfRefs.current[currentFile.id]?.scrollIntoView({ behavior: 'smooth' })
    }
  }, [currentFile])
  const filterByFile = (
@ -49,30 +47,32 @@ const PdfView = ({
  const isNotLastPdfFile = (index: number, files: CurrentUserFile[]): boolean =>
    index !== files.length - 1
  return (
-    <>
+    <div className="files-wrapper">
      {files.map((currentUserFile, index, arr) => {
-        const { hash, pdfFile, id, filename } = currentUserFile
+        const { hash, file, id } = currentUserFile

        if (!hash) return
        return (
+          <React.Fragment key={index}>
            <div
-            id={filename}
+              id={file.name}
+              className="file-wrapper"
              ref={(el) => (pdfRefs.current[id] = el)}
-            key={index}
            >
              <PdfItem
-              pdfFile={pdfFile}
+                file={file}
                currentUserMarks={filterByFile(currentUserMarks, hash)}
                selectedMark={selectedMark}
                handleMarkClick={handleMarkClick}
                selectedMarkValue={selectedMarkValue}
                otherUserMarks={filterMarksByFile(otherUserMarks, hash)}
              />
-            {isNotLastPdfFile(index, arr) && <Divider>File Separator</Divider>}
            </div>
+            {isNotLastPdfFile(index, arr) && <FileDivider />}
+          </React.Fragment>
        )
      })}
-    </>
+    </div>
  )
 }

--- a/src/components/PDFView/style.module.scss
+++ b/src/components/PDFView/style.module.scss
@ -1,33 +1,7 @@
-.imageWrapper {
-  display: flex;
-  justify-content: center;
-  align-items: center;
-  width: 100%; /* Adjust as needed */
-  height: 100%; /* Adjust as needed */
-  overflow: hidden; /* Ensure no overflow */
-  border: 1px solid #ccc; /* Optional: for visual debugging */
-  background-color: #e0f7fa; /* Optional: for visual debugging */
-}
-
-.image {
-  max-width: 100%;
-  max-height: 100%;
-  object-fit: contain; /* Ensure the image fits within the container */
-}
-
 .container {
  display: flex;
  width: 100%;
  flex-direction: column;
-
-}
-
-.pdfView {
-  display: flex;
-  flex-direction: column;
-  width: 100%;
-  height: 100%;
-  gap: 10px;
 }

 .otherUserMarksDisplay {
--- a/src/components/UsersDetails.tsx/index.tsx
+++ b/src/components/UsersDetails.tsx/index.tsx
@ -1,7 +1,6 @@
 import { Divider, Tooltip } from '@mui/material'
 import { useSigitProfiles } from '../../hooks/useSigitProfiles'
 import {
-  extractFileExtensions,
  formatTimestamp,
  fromUnixTimestamp,
  hexToNpub,
@ -28,6 +27,7 @@ import { State } from '../../store/rootReducer'
 import { TooltipChild } from '../TooltipChild'
 import { DisplaySigner } from '../DisplaySigner'
 import { Meta } from '../../types'
+import { extractFileExtensions } from '../../utils/file'

 interface UsersDetailsProps {
  meta: Meta
--- a/src/controllers/RelayController.ts
+++ b/src/controllers/RelayController.ts
@ -1,5 +1,9 @@
 import { Event, Filter, Relay } from 'nostr-tools'
-import { normalizeWebSocketURL, timeout } from '../utils'
+import {
+  settleAllFullfilfedPromises,
+  normalizeWebSocketURL,
+  timeout
+} from '../utils'
 import { SIGIT_RELAY } from '../utils/const'

 /**
@ -105,24 +109,11 @@ export class RelayController {
    }

    // connect to all specified relays
-    const relayPromises = relayUrls.map((relayUrl) =>
-      this.connectRelay(relayUrl)
+    const relays = await settleAllFullfilfedPromises(
+      relayUrls,
+      this.connectRelay
    )

-    // Use Promise.allSettled to wait for all promises to settle
-    const results = await Promise.allSettled(relayPromises)
-
-    // Extract non-null values from fulfilled promises in a single pass
-    const relays = results.reduce<Relay[]>((acc, result) => {
-      if (result.status === 'fulfilled') {
-        const value = result.value
-        if (value) {
-          acc.push(value)
-        }
-      }
-      return acc
-    }, [])
-
    // Check if any relays are connected
    if (relays.length === 0) {
      throw new Error('No relay is connected to fetch events!')
@ -228,23 +219,10 @@ export class RelayController {
    }

    // connect to all specified relays
-    const relayPromises = relayUrls.map((relayUrl) => {
-      return this.connectRelay(relayUrl)
-    })
-
-    // Use Promise.allSettled to wait for all promises to settle
-    const results = await Promise.allSettled(relayPromises)
-
-    // Extract non-null values from fulfilled promises in a single pass
-    const relays = results.reduce<Relay[]>((acc, result) => {
-      if (result.status === 'fulfilled') {
-        const value = result.value
-        if (value) {
-          acc.push(value)
-        }
-      }
-      return acc
-    }, [])
+    const relays = await settleAllFullfilfedPromises(
+      relayUrls,
+      this.connectRelay
+    )

    // Check if any relays are connected
    if (relays.length === 0) {
@ -292,24 +270,11 @@ export class RelayController {
    }

    // connect to all specified relays
-    const relayPromises = relayUrls.map((relayUrl) =>
-      this.connectRelay(relayUrl)
+    const relays = await settleAllFullfilfedPromises(
+      relayUrls,
+      this.connectRelay
    )

-    // Use Promise.allSettled to wait for all promises to settle
-    const results = await Promise.allSettled(relayPromises)
-
-    // Extract non-null values from fulfilled promises in a single pass
-    const relays = results.reduce<Relay[]>((acc, result) => {
-      if (result.status === 'fulfilled') {
-        const value = result.value
-        if (value) {
-          acc.push(value)
-        }
-      }
-      return acc
-    }, [])
-
    // Check if any relays are connected
    if (relays.length === 0) {
      throw new Error('No relay is connected to publish event!')
--- a/src/index.css
+++ b/src/index.css
@ -165,15 +165,3 @@ button:disabled {
  font-style: normal;
  font-display: swap;
 }
-
-.otherFile {
-  border-radius: 4px;
-  background: rgba(255, 255, 255, 0.5);
-  height: 100px;
-  display: flex;
-  flex-direction: column;
-  justify-content: center;
-  align-items: center;
-  color: rgba(0, 0, 0, 0.25);
-  font-size: 14px;
-}
--- a/src/pages/create/index.tsx
+++ b/src/pages/create/index.tsx
@ -51,7 +51,7 @@ import {
 import { Container } from '../../components/Container'
 import styles from './style.module.scss'
 import fileListStyles from '../../components/FileList/style.module.scss'
-import { DrawTool, MarkType, PdfFile } from '../../types/drawing'
+import { DrawTool, MarkType } from '../../types/drawing'
 import { DrawPDFFields } from '../../components/DrawPDFFields'
 import { Mark } from '../../types/mark.ts'
 import { StickySideColumns } from '../../layouts/StickySideColumns.tsx'
@ -83,6 +83,7 @@ import {
  faTrash,
  faUpload
 } from '@fortawesome/free-solid-svg-icons'
+import { SigitFile } from '../../utils/file.ts'

 export const CreatePage = () => {
  const navigate = useNavigate()
@ -125,7 +126,7 @@ export const CreatePage = () => {
  const [metadata, setMetadata] = useState<{ [key: string]: ProfileMetadata }>(
    {}
  )
-  const [drawnPdfs, setDrawnPdfs] = useState<PdfFile[]>([])
+  const [drawnFiles, setDrawnFiles] = useState<SigitFile[]>([])

  const [selectedTool, setSelectedTool] = useState<DrawTool>()
  const [toolbox] = useState<DrawTool[]>([
@ -507,10 +508,11 @@ export const CreatePage = () => {
  }

  const createMarks = (fileHashes: { [key: string]: string }): Mark[] => {
-    return drawnPdfs
-      .flatMap((drawnPdf) => {
-        const fileHash = fileHashes[drawnPdf.file.name]
-        return drawnPdf.pages.flatMap((page, index) => {
+    return drawnFiles
+      .flatMap((file) => {
+        const fileHash = fileHashes[file.name]
+        return (
+          file.pages?.flatMap((page, index) => {
            return page.drawnFields.map((drawnField) => {
              return {
                type: drawnField.type,
@ -523,10 +525,11 @@ export const CreatePage = () => {
                },
                npub: drawnField.counterpart,
                pdfFileHash: fileHash,
-              fileName: drawnPdf.file.name
+                fileName: file.name
              }
            })
-        })
+          }) || []
+        )
      })
      .map((mark, index) => {
        return { ...mark, id: index }
@ -846,8 +849,8 @@ export const CreatePage = () => {
    }
  }

-  const onDrawFieldsChange = (pdfFiles: PdfFile[]) => {
-    setDrawnPdfs(pdfFiles)
+  const onDrawFieldsChange = (sigitFiles: SigitFile[]) => {
+    setDrawnFiles(sigitFiles)
  }

  if (authUrl) {
--- a/src/pages/sign/index.tsx
+++ b/src/pages/sign/index.tsx
@ -33,14 +33,11 @@ import {
  sendNotification,
  signEventForMetaFile,
  updateUsersAppData,
-  findOtherUserMarks,
-  extractFileExtension
+  findOtherUserMarks
 } from '../../utils'
 import { Container } from '../../components/Container'
 import { DisplayMeta } from './internal/displayMeta'
 import styles from './style.module.scss'
-import { PdfFile } from '../../types/drawing.ts'
-import { convertToPdfFile, toFile } from '../../utils/pdf.ts'
 import { CurrentUserMark, Mark } from '../../types/mark.ts'
 import { getLastSignersSig } from '../../utils/sign.ts'
 import {
@ -50,7 +47,11 @@ import {
  updateMarks
 } from '../../utils'
 import PdfMarking from '../../components/PDFView/PdfMarking.tsx'
-import { getZipWithFiles } from '../../utils/file.ts'
+import {
+  convertToSigitFile,
+  getZipWithFiles,
+  SigitFile
+} from '../../utils/file.ts'
 import { ARRAY_BUFFER, DEFLATE } from '../../utils/const.ts'
 enum SignedStatus {
  Fully_Signed,
@ -77,7 +78,7 @@ export const SignPage = () => {

  const [selectedFile, setSelectedFile] = useState<File | null>(null)

-  const [files, setFiles] = useState<{ [filename: string]: PdfFile | File }>({})
+  const [files, setFiles] = useState<{ [filename: string]: SigitFile }>({})

  const [isLoading, setIsLoading] = useState(true)
  const [loadingSpinnerDesc, setLoadingSpinnerDesc] = useState('')
@ -403,7 +404,7 @@ export const SignPage = () => {
      return
    }

-    const files: { [filename: string]: PdfFile | File } = {}
+    const files: { [filename: string]: SigitFile } = {}
    const fileHashes: { [key: string]: string | null } = {}
    const fileNames = Object.values(zip.files).map((entry) => entry.name)

@ -417,15 +418,7 @@ export const SignPage = () => {
      )

      if (arrayBuffer) {
-        try {
-          files[fileName] = await convertToPdfFile(arrayBuffer, fileName)
-        } catch (error) {
-          files[fileName] = toFile(
-            arrayBuffer,
-            fileName,
-            'application/' + extractFileExtension(fileName)
-          )
-        }
+        files[fileName] = await convertToSigitFile(arrayBuffer, fileName)
        const hash = await getHash(arrayBuffer)
        if (hash) {
          fileHashes[fileName] = hash
@ -470,7 +463,7 @@ export const SignPage = () => {
    const zip = await loadZip(decryptedZipFile)
    if (!zip) return

-    const files: { [filename: string]: PdfFile } = {}
+    const files: { [filename: string]: SigitFile } = {}
    const fileHashes: { [key: string]: string | null } = {}
    const fileNames = Object.values(zip.files)
      .filter((entry) => entry.name.startsWith('files/') && !entry.dir)
@ -487,7 +480,7 @@ export const SignPage = () => {
      )

      if (arrayBuffer) {
-        files[fileName] = await convertToPdfFile(arrayBuffer, fileName)
+        files[fileName] = await convertToSigitFile(arrayBuffer, fileName)

        const hash = await getHash(arrayBuffer)
        if (hash) {
@ -773,12 +766,8 @@ export const SignPage = () => {
    zip.file('meta.json', stringifiedMeta)

    for (const [fileName, file] of Object.entries(files)) {
-      if ('pages' in file) {
-        zip.file(`files/${fileName}`, await file.file.arrayBuffer())
-      } else {
      zip.file(`files/${fileName}`, await file.arrayBuffer())
    }
-    }

    const arrayBuffer = await zip
      .generateAsync({
@ -815,12 +804,8 @@ export const SignPage = () => {
    zip.file('meta.json', stringifiedMeta)

    for (const [fileName, file] of Object.entries(files)) {
-      if ('pages' in file) {
-        zip.file(`files/${fileName}`, await file.file.arrayBuffer())
-      } else {
      zip.file(`files/${fileName}`, await file.arrayBuffer())
    }
-    }

    const arrayBuffer = await zip
      .generateAsync({
--- a/src/pages/sign/internal/displayMeta.tsx
+++ b/src/pages/sign/internal/displayMeta.tsx
@ -34,11 +34,11 @@ import { UserAvatar } from '../../../components/UserAvatar'
 import { MetadataController } from '../../../controllers'
 import { npubToHex, shorten, hexToNpub, parseJson } from '../../../utils'
 import styles from '../style.module.scss'
-import { PdfFile } from '../../../types/drawing.ts'
+import { SigitFile } from '../../../utils/file'

 type DisplayMetaProps = {
  meta: Meta
-  files: { [filename: string]: PdfFile | File }
+  files: { [fileName: string]: SigitFile }
  submittedBy: string
  signers: `npub1${string}`[]
  viewers: `npub1${string}`[]
@ -143,19 +143,9 @@ export const DisplayMeta = ({
    })
  }, [users, submittedBy, metadata])

-  const downloadFile = async (filename: string) => {
-    const file = files[filename]
-
-    let arrayBuffer: ArrayBuffer
-    if ('pages' in file) {
-      arrayBuffer = await file.file.arrayBuffer()
-    } else {
-      arrayBuffer = await file.arrayBuffer()
-    }
-    if (!arrayBuffer) return
-
-    const blob = new Blob([arrayBuffer])
-    saveAs(blob, filename)
+  const downloadFile = async (fileName: string) => {
+    const file = files[fileName]
+    saveAs(file)
  }

  return (
--- a/src/pages/sign/style.module.scss
+++ b/src/pages/sign/style.module.scss
@ -2,8 +2,6 @@

 .container {
  color: $text-color;
-  //width: 550px;
-  //max-width: 550px;

  .inputBlock {
    position: relative;
@ -67,7 +65,7 @@
    //z-index: 200;
  }

-  .fixedBottomForm input[type="text"] {
+  .fixedBottomForm input[type='text'] {
    width: 80%;
    padding: 10px;
    font-size: 16px;
--- a/src/pages/verify/index.tsx
+++ b/src/pages/verify/index.tsx
@ -1,4 +1,4 @@
-import { Box, Button, Divider, Tooltip, Typography } from '@mui/material'
+import { Box, Button, Tooltip, Typography } from '@mui/material'
 import JSZip from 'jszip'
 import { MuiFileInput } from 'mui-file-input'
 import { Event, verifyEvent } from 'nostr-tools'
@ -21,20 +21,16 @@ import {
  readContentOfZipEntry,
  signEventForMetaFile,
  shorten,
-  getCurrentUserFiles,
-  extractFileExtension
+  getCurrentUserFiles
 } from '../../utils'
 import styles from './style.module.scss'
 import { useLocation } from 'react-router-dom'
 import axios from 'axios'
-import { PdfFile } from '../../types/drawing.ts'
 import {
  addMarks,
  convertToPdfBlob,
-  convertToPdfFile,
  groupMarksByFileNamePage,
-  inPx,
-  toFile
+  inPx
 } from '../../utils/pdf.ts'
 import { State } from '../../store/rootReducer.ts'
 import { useSelector } from 'react-redux'
@ -51,6 +47,9 @@ import FileList from '../../components/FileList'
 import { CurrentUserFile } from '../../types/file.ts'
 import { Mark } from '../../types/mark.ts'
 import React from 'react'
+import { convertToSigitFile, SigitFile } from '../../utils/file.ts'
+import { FileDivider } from '../../components/FileDivider.tsx'
+import { ExtensionFileBox } from '../../components/ExtensionFileBox.tsx'

 interface PdfViewProps {
  files: CurrentUserFile[]
@ -69,26 +68,25 @@ const SlimPdfView = ({
  useEffect(() => {
    if (currentFile !== null && !!pdfRefs.current[currentFile.id]) {
      pdfRefs.current[currentFile.id]?.scrollIntoView({
-        behavior: 'smooth',
-        block: 'end'
+        behavior: 'smooth'
      })
    }
  }, [currentFile])
  return (
-    <div className={styles.view}>
+    <div className="files-wrapper">
      {files.map((currentUserFile, i) => {
-        const { hash, filename, pdfFile, id } = currentUserFile
+        const { hash, file, id } = currentUserFile
        const signatureEvents = Object.keys(parsedSignatureEvents)
        if (!hash) return
        return (
-          <React.Fragment key={filename}>
+          <React.Fragment key={file.name}>
            <div
-              id={filename}
+              id={file.name}
              ref={(el) => (pdfRefs.current[id] = el)}
-              className={styles.fileWrapper}
+              className="file-wrapper"
            >
-              {'pages' in pdfFile ? (
-                pdfFile.pages.map((page, i) => {
+              {file.isPdf ? (
+                file.pages?.map((page, i) => {
                  const marks: Mark[] = []

                  signatureEvents.forEach((e) => {
@ -102,7 +100,7 @@ const SlimPdfView = ({
                    }
                  })
                  return (
-                    <div className={styles.imageWrapper} key={i}>
+                    <div className="image-wrapper" key={i}>
                      <img draggable="false" src={page.image} />
                      {marks.map((m) => {
                        return (
@ -124,22 +122,11 @@ const SlimPdfView = ({
                  )
                })
              ) : (
-                <div className={'otherFile'}>
-                  This is a {extractFileExtension(pdfFile.name)} file
-                </div>
+                <ExtensionFileBox extension={file.extension} />
              )}
            </div>

-            {i < files.length - 1 && (
-              <Divider
-                sx={{
-                  fontSize: '12px',
-                  color: 'rgba(0,0,0,0.15)'
-                }}
-              >
-                File Separator
-              </Divider>
-            )}
+            {i < files.length - 1 && <FileDivider />}
          </React.Fragment>
        )
      })}
@ -179,7 +166,7 @@ export const VerifyPage = () => {
  const [currentFileHashes, setCurrentFileHashes] = useState<{
    [key: string]: string | null
  }>({})
-  const [files, setFiles] = useState<{ [filename: string]: PdfFile | File }>({})
+  const [files, setFiles] = useState<{ [filename: string]: SigitFile }>({})
  const [currentFile, setCurrentFile] = useState<CurrentUserFile | null>(null)
  const [signatureFileHashes, setSignatureFileHashes] = useState<{
    [key: string]: string
@ -238,7 +225,7 @@ export const VerifyPage = () => {

              if (!zip) return

-              const files: { [filename: string]: PdfFile | File } = {}
+              const files: { [fileName: string]: SigitFile } = {}
              const fileHashes: { [key: string]: string | null } = {}
              const fileNames = Object.values(zip.files).map(
                (entry) => entry.name
@ -254,18 +241,10 @@ export const VerifyPage = () => {
                )

                if (arrayBuffer) {
-                  try {
-                    files[fileName] = await convertToPdfFile(
+                  files[fileName] = await convertToSigitFile(
                    arrayBuffer,
                    fileName!
                  )
-                  } catch (error) {
-                    files[fileName] = toFile(
-                      arrayBuffer,
-                      fileName,
-                      'application/' + extractFileExtension(fileName)
-                    )
-                  }
                  const hash = await getHash(arrayBuffer)

                  if (hash) {
@ -439,15 +418,15 @@ export const VerifyPage = () => {
    const marks = extractMarksFromSignedMeta(updatedMeta)
    const marksByPage = groupMarksByFileNamePage(marks)

-    for (const [fileName, pdf] of Object.entries(files)) {
-      let blob: Blob
-      if ('pages' in pdf) {
-        const pages = await addMarks(pdf.file, marksByPage[fileName])
-        blob = await convertToPdfBlob(pages)
-      } else {
-        blob = new Blob([pdf], { type: pdf.type })
-      }
+    for (const [fileName, file] of Object.entries(files)) {
+      if (file.isPdf) {
+        // Draw marks into PDF file and generate a brand new blob
+        const pages = await addMarks(file, marksByPage[fileName])
+        const blob = await convertToPdfBlob(pages)
        zip.file(`files/${fileName}`, blob)
+      } else {
+        zip.file(`files/${fileName}`, file)
+      }
    }

    const arrayBuffer = await zip
--- a/src/pages/verify/style.module.scss
+++ b/src/pages/verify/style.module.scss
@ -51,30 +51,6 @@
  }
 }

-.view {
-  width: 550px;
-  max-width: 550px;
-
-  display: flex;
-  flex-direction: column;
-  gap: 25px;
-}
-
-.imageWrapper {
-  position: relative;
-
-  img {
-    width: 100%;
-    display: block;
-  }
-}
-
-.fileWrapper {
-  display: flex;
-  flex-direction: column;
-  gap: 15px;
-}
-
 .mark {
  position: absolute;

--- a/src/types/drawing.ts
+++ b/src/types/drawing.ts
@ -8,12 +8,6 @@ export interface MouseState {
  }
 }

-export interface PdfFile {
-  file: File
-  pages: PdfPage[]
-  expanded?: boolean
-}
-
 export interface PdfPage {
  image: string
  drawnFields: DrawnField[]
--- a/src/types/file.ts
+++ b/src/types/file.ts
@ -1,9 +1,8 @@
-import { PdfFile } from './drawing.ts'
+import { SigitFile } from '../utils/file'

 export interface CurrentUserFile {
  id: number
-  pdfFile: PdfFile | File
-  filename: string
+  file: SigitFile
  hash?: string
  isHashValid: boolean
 }
--- a/src/utils/const.ts
+++ b/src/utils/const.ts
@ -26,3 +26,94 @@ export const DEFAULT_LOOK_UP_RELAY_LIST = [
  'wss://user.kindpag.es',
  'wss://purplepag.es'
 ]
+
+// Uses the https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types list
+// Updated on 2024/08/22
+export const MOST_COMMON_MEDIA_TYPES = new Map([
+  ['aac', 'audio/aac'], // AAC audio
+  ['abw', 'application/x-abiword'], // AbiWord document
+  ['apng', 'image/apng'], // Animated Portable Network Graphics (APNG) image
+  ['arc', 'application/x-freearc'], // Archive document (multiple files embedded)
+  ['avif', 'image/avif'], // AVIF image
+  ['avi', 'video/x-msvideo'], // AVI: Audio Video Interleave
+  ['azw', 'application/vnd.amazon.ebook'], // Amazon Kindle eBook format
+  ['bin', 'application/octet-stream'], // Any kind of binary data
+  ['bmp', 'image/bmp'], // Windows OS/2 Bitmap Graphics
+  ['bz', 'application/x-bzip'], // BZip archive
+  ['bz2', 'application/x-bzip2'], // BZip2 archive
+  ['cda', 'application/x-cdf'], // CD audio
+  ['csh', 'application/x-csh'], // C-Shell script
+  ['css', 'text/css'], // Cascading Style Sheets (CSS)
+  ['csv', 'text/csv'], // Comma-separated values (CSV)
+  ['doc', 'application/msword'], // Microsoft Word
+  [
+    'docx',
+    'application/vnd.openxmlformats-officedocument.wordprocessingml.document'
+  ], // Microsoft Word (OpenXML)
+  ['eot', 'application/vnd.ms-fontobject'], // MS Embedded OpenType fonts
+  ['epub', 'application/epub+zip'], // Electronic publication (EPUB)
+  ['gz', 'application/gzip'], // GZip Compressed Archive
+  ['gif', 'image/gif'], // Graphics Interchange Format (GIF)
+  ['htm', 'text/html'], // HyperText Markup Language (HTML)
+  ['html', 'text/html'], // HyperText Markup Language (HTML)
+  ['ico', 'image/vnd.microsoft.icon'], // Icon format
+  ['ics', 'text/calendar'], // iCalendar format
+  ['jar', 'application/java-archive'], // Java Archive (JAR)
+  ['jpeg', 'image/jpeg'], // JPEG images
+  ['jpg', 'image/jpeg'], // JPEG images
+  ['js', 'text/javascript'], // JavaScript
+  ['json', 'application/json'], // JSON format
+  ['jsonld', 'application/ld+json'], // JSON-LD format
+  ['mid', 'audio/midi'], // Musical Instrument Digital Interface (MIDI)
+  ['midi', 'audio/midi'], // Musical Instrument Digital Interface (MIDI)
+  ['mjs', 'text/javascript'], // JavaScript module
+  ['mp3', 'audio/mpeg'], // MP3 audio
+  ['mp4', 'video/mp4'], // MP4 video
+  ['mpeg', 'video/mpeg'], // MPEG Video
+  ['mpkg', 'application/vnd.apple.installer+xml'], // Apple Installer Package
+  ['odp', 'application/vnd.oasis.opendocument.presentation'], // OpenDocument presentation document
+  ['ods', 'application/vnd.oasis.opendocument.spreadsheet'], // OpenDocument spreadsheet document
+  ['odt', 'application/vnd.oasis.opendocument.text'], // OpenDocument text document
+  ['oga', 'audio/ogg'], // Ogg audio
+  ['ogv', 'video/ogg'], // Ogg video
+  ['ogx', 'application/ogg'], // Ogg
+  ['opus', 'audio/ogg'], // Opus audio in Ogg container
+  ['otf', 'font/otf'], // OpenType font
+  ['png', 'image/png'], // Portable Network Graphics
+  ['pdf', 'application/pdf'], // Adobe Portable Document Format (PDF)
+  ['php', 'application/x-httpd-php'], // Hypertext Preprocessor (Personal Home Page)
+  ['ppt', 'application/vnd.ms-powerpoint'], // Microsoft PowerPoint
+  [
+    'pptx',
+    'application/vnd.openxmlformats-officedocument.presentationml.presentation'
+  ], // Microsoft PowerPoint (OpenXML)
+  ['rar', 'application/vnd.rar'], // RAR archive
+  ['rtf', 'application/rtf'], // Rich Text Format (RTF)
+  ['sh', 'application/x-sh'], // Bourne shell script
+  ['svg', 'image/svg+xml'], // Scalable Vector Graphics (SVG)
+  ['tar', 'application/x-tar'], // Tape Archive (TAR)
+  ['tif', 'image/tiff'], // Tagged Image File Format (TIFF)
+  ['tiff', 'image/tiff'], // Tagged Image File Format (TIFF)
+  ['ts', 'video/mp2t'], // MPEG transport stream
+  ['ttf', 'font/ttf'], // TrueType Font
+  ['txt', 'text/plain'], // Text, (generally ASCII or ISO 8859-n)
+  ['vsd', 'application/vnd.visio'], // Microsoft Visio
+  ['wav', 'audio/wav'], // Waveform Audio Format
+  ['weba', 'audio/webm'], // WEBM audio
+  ['webm', 'video/webm'], // WEBM video
+  ['webp', 'image/webp'], // WEBP image
+  ['woff', 'font/woff'], // Web Open Font Format (WOFF)
+  ['woff2', 'font/woff2'], // Web Open Font Format (WOFF)
+  ['xhtml', 'application/xhtml+xml'], // XHTML
+  ['xls', 'application/vnd.ms-excel'], // Microsoft Excel
+  [
+    '.xlsx',
+    'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
+  ], // Microsoft Excel (OpenXML)
+  ['xml', 'application/xml'], // XML
+  ['xul', 'application/vnd.mozilla.xul+xml'], // XUL
+  ['zip', 'application/zip'], // ZIP archive
+  ['3gp', 'video/3gpp'], // 3GPP audio/video container
+  ['3g2', 'video/3gpp2'], // 3GPP2 audio/video container
+  ['7z', 'application/x-7z-compressed'] // 7-zip archive
+])
--- a/src/utils/file.ts
+++ b/src/utils/file.ts
@ -1,32 +1,120 @@
 import { Meta } from '../types'
+import { PdfPage } from '../types/drawing.ts'
+import { MOST_COMMON_MEDIA_TYPES } from './const.ts'
 import { extractMarksFromSignedMeta } from './mark.ts'
-import { addMarks, convertToPdfBlob, groupMarksByFileNamePage } from './pdf.ts'
+import {
+  addMarks,
+  convertToPdfBlob,
+  groupMarksByFileNamePage,
+  isPdf,
+  pdfToImages
+} from './pdf.ts'
 import JSZip from 'jszip'
-import { PdfFile } from '../types/drawing.ts'

-const getZipWithFiles = async (
+export const getZipWithFiles = async (
  meta: Meta,
-  files: { [filename: string]: PdfFile | File }
+  files: { [filename: string]: SigitFile }
 ): Promise<JSZip> => {
  const zip = new JSZip()
  const marks = extractMarksFromSignedMeta(meta)
  const marksByFileNamePage = groupMarksByFileNamePage(marks)

  for (const [fileName, file] of Object.entries(files)) {
-    let blob: Blob
-    if ('pages' in file) {
+    if (file.isPdf) {
      // Handle PDF Files
-      const pages = await addMarks(file.file, marksByFileNamePage[fileName])
-      blob = await convertToPdfBlob(pages)
+      const pages = await addMarks(file, marksByFileNamePage[fileName])
+      const blob = await convertToPdfBlob(pages)
+      zip.file(`files/${fileName}`, blob)
    } else {
      // Handle other files
-      blob = new Blob([file], { type: file.type })
+      zip.file(`files/${fileName}`, file)
    }
-
-    zip.file(`files/${fileName}`, blob)
  }

  return zip
 }

-export { getZipWithFiles }
+/**
+ * Converts a PDF ArrayBuffer to a generic PDF File
+ * @param arrayBuffer of a PDF
+ * @param fileName identifier of the pdf file
+ * @param type optional file type (defaults to pdf)
+ */
+export const toFile = (
+  arrayBuffer: ArrayBuffer,
+  fileName: string,
+  type: string = 'application/pdf'
+): File => {
+  const blob = new Blob([arrayBuffer], { type })
+  return new File([blob], fileName, { type })
+}
+
+export class SigitFile extends File {
+  extension: string
+  pages?: PdfPage[]
+  isPdf: boolean
+
+  constructor(file: File) {
+    super([file], file.name, { type: file.type })
+    this.isPdf = isPdf(this)
+    this.extension = extractFileExtension(this.name)
+  }
+
+  async process() {
+    if (this.isPdf) this.pages = await pdfToImages(await this.arrayBuffer())
+  }
+}
+
+export const getSigitFile = async (file: File) => {
+  const sigitFile = new SigitFile(file)
+  // Process sigit file
+  // - generate pages for PDF files
+  await sigitFile.process()
+  return sigitFile
+}
+
+/**
+ * Takes an ArrayBuffer and converts to Sigit's Internal File type
+ * @param arrayBuffer
+ * @param fileName
+ */
+export const convertToSigitFile = async (
+  arrayBuffer: ArrayBuffer,
+  fileName: string
+): Promise<SigitFile> => {
+  const type = getMediaType(extractFileExtension(fileName))
+  const file = toFile(arrayBuffer, fileName, type)
+  const sigitFile = await getSigitFile(file)
+  return sigitFile
+}
+
+/**
+ * @param fileNames - List of filenames to check
+ * @returns List of extensions and if all are same
+ */
+export const extractFileExtensions = (fileNames: string[]) => {
+  const extensions = fileNames.reduce((result: string[], file: string) => {
+    const extension = file.split('.').pop()
+    if (extension) {
+      result.push(extension)
+    }
+    return result
+  }, [])
+
+  const isSame = extensions.every((ext) => ext === extensions[0])
+
+  return { extensions, isSame }
+}
+
+/**
+ * @param fileName - Filename to check
+ * @returns Extension string
+ */
+export const extractFileExtension = (fileName: string) => {
+  const parts = fileName.split('.')
+  return parts[parts.length - 1]
+}
+
+export const getMediaType = (extension: string) => {
+  return MOST_COMMON_MEDIA_TYPES.get(extension)
+}
--- a/src/utils/meta.ts
+++ b/src/utils/meta.ts
@ -2,6 +2,7 @@ import { CreateSignatureEventContent, Meta } from '../types'
 import { fromUnixTimestamp, parseJson } from '.'
 import { Event, verifyEvent } from 'nostr-tools'
 import { toast } from 'react-toastify'
+import { extractFileExtensions } from './file'

 export enum SignStatus {
  Signed = 'Signed',
@ -172,29 +173,3 @@ export const extractSigitCardDisplayInfo = async (meta: Meta) => {
    }
  }
 }
-
-/**
- * @param fileNames - List of filenames to check
- * @returns List of extensions and if all are same
- */
-export const extractFileExtensions = (fileNames: string[]) => {
-  const extensions = fileNames.reduce((result: string[], file: string) => {
-    const extension = file.split('.').pop()
-    if (extension) {
-      result.push(extension)
-    }
-    return result
-  }, [])
-
-  const isSame = extensions.every((ext) => ext === extensions[0])
-
-  return { extensions, isSame }
-}
-
-/**
- * @param fileName - Filename to check
- * @returns Extension string
- */
-export const extractFileExtension = (fileName: string) => {
-  return fileName.split('.').pop()
-}
--- a/src/utils/pdf.ts
+++ b/src/utils/pdf.ts
@ -1,4 +1,4 @@
-import { PdfFile, PdfPage } from '../types/drawing.ts'
+import { PdfPage } from '../types/drawing.ts'
 import * as PDFJS from 'pdfjs-dist'
 import { PDFDocument } from 'pdf-lib'
 import { Mark } from '../types/mark.ts'
@ -12,7 +12,7 @@ PDFJS.GlobalWorkerOptions.workerSrc = new URL(
 * Scale between the PDF page's natural size and rendered size
 * @constant {number}
 */
-const SCALE: number = 3
+export const SCALE: number = 3
 /**
 * Defined font size used when generating a PDF. Currently it is difficult to fully
 * correlate font size used at the time of filling in / drawing on the PDF
@ -20,63 +20,28 @@ const SCALE: number = 3
 * This should be fixed going forward.
 * Switching to PDF-Lib will most likely make this problem redundant.
 */
-const FONT_SIZE: number = 40
+export const FONT_SIZE: number = 40
 /**
 * Current font type used when generating a PDF.
 */
-const FONT_TYPE: string = 'Arial'
-
-/**
- * Converts a PDF ArrayBuffer to a generic PDF File
- * @param arrayBuffer of a PDF
- * @param fileName identifier of the pdf file
- * @param type optional file type (defaults to pdf)
- */
-const toFile = (
-  arrayBuffer: ArrayBuffer,
-  fileName: string,
-  type: string = 'application/pdf'
-): File => {
-  const blob = new Blob([arrayBuffer], { type })
-  return new File([blob], fileName, { type })
-}
-
-/**
- * Converts a generic PDF File to Sigit's internal Pdf File type
- * @param {File} file
- * @return {PdfFile} Sigit's internal PDF File type
- */
-const toPdfFile = async (file: File): Promise<PdfFile> => {
-  const data = await readPdf(file)
-  const pages = await pdfToImages(data)
-  return { file, pages, expanded: false }
-}
-/**
- * Transforms an array of generic PDF Files into an array of Sigit's
- * internal representation of Pdf Files
- * @param selectedFiles - an array of generic PDF Files
- * @return PdfFile[] - an array of Sigit's internal Pdf File type
- */
-const toPdfFiles = async (selectedFiles: File[]): Promise<PdfFile[]> => {
-  return Promise.all(selectedFiles.filter(isPdf).map(toPdfFile))
-}
+export const FONT_TYPE: string = 'Arial'

 /**
 * A utility that transforms a drawing coordinate number into a CSS-compatible string
 * @param coordinate
 */
-const inPx = (coordinate: number): string => `${coordinate}px`
+export const inPx = (coordinate: number): string => `${coordinate}px`

 /**
 * A utility that checks if a given file is of the pdf type
 * @param file
 */
-const isPdf = (file: File) => file.type.toLowerCase().includes('pdf')
+export const isPdf = (file: File) => file.type.toLowerCase().includes('pdf')

 /**
 * Reads the pdf file binaries
 */
-const readPdf = (file: File): Promise<string | ArrayBuffer> => {
+export const readPdf = (file: File): Promise<string | ArrayBuffer> => {
  return new Promise((resolve, reject) => {
    const reader = new FileReader()

@ -104,7 +69,9 @@ const readPdf = (file: File): Promise<string | ArrayBuffer> => {
 * Converts pdf to the images
 * @param data pdf file bytes
 */
-const pdfToImages = async (data: string | ArrayBuffer): Promise<PdfPage[]> => {
+export const pdfToImages = async (
+  data: string | ArrayBuffer
+): Promise<PdfPage[]> => {
  const images: string[] = []
  const pdf = await PDFJS.getDocument(data).promise
  const canvas = document.createElement('canvas')
@ -134,7 +101,7 @@ const pdfToImages = async (data: string | ArrayBuffer): Promise<PdfPage[]> => {
 * Returns an array of encoded images where each image is a representation
 * of a PDF page with completed and signed marks from all users
 */
-const addMarks = async (
+export const addMarks = async (
  file: File,
  marksPerPage: { [key: string]: Mark[] }
 ) => {
@ -164,7 +131,7 @@ const addMarks = async (
 /**
 * Utility to scale mark in line with the PDF-to-PNG scale
 */
-const scaleMark = (mark: Mark): Mark => {
+export const scaleMark = (mark: Mark): Mark => {
  const { location } = mark
  return {
    ...mark,
@ -182,14 +149,14 @@ const scaleMark = (mark: Mark): Mark => {
 * Utility to check if a Mark has value
 * @param mark
 */
-const hasValue = (mark: Mark): boolean => !!mark.value
+export const hasValue = (mark: Mark): boolean => !!mark.value

 /**
 * Draws a Mark on a Canvas representation of a PDF Page
 * @param mark to be drawn
 * @param ctx a Canvas representation of a specific PDF Page
 */
-const draw = (mark: Mark, ctx: CanvasRenderingContext2D) => {
+export const draw = (mark: Mark, ctx: CanvasRenderingContext2D) => {
  const { location } = mark

  ctx!.font = FONT_SIZE + 'px ' + FONT_TYPE
@ -204,7 +171,9 @@ const draw = (mark: Mark, ctx: CanvasRenderingContext2D) => {
 * Takes an array of encoded PDF pages and returns a blob that is a complete PDF file
 * @param markedPdfPages
 */
-const convertToPdfBlob = async (markedPdfPages: string[]): Promise<Blob> => {
+export const convertToPdfBlob = async (
+  markedPdfPages: string[]
+): Promise<Blob> => {
  const pdfDoc = await PDFDocument.create()

  for (const page of markedPdfPages) {
@ -222,30 +191,17 @@ const convertToPdfBlob = async (markedPdfPages: string[]): Promise<Blob> => {
  return new Blob([pdfBytes], { type: 'application/pdf' })
 }

-/**
- * Takes an ArrayBuffer of a PDF file and converts to Sigit's Internal Pdf File type
- * @param arrayBuffer
- * @param fileName
- */
-const convertToPdfFile = async (
-  arrayBuffer: ArrayBuffer,
-  fileName: string
-): Promise<PdfFile> => {
-  const file = toFile(arrayBuffer, fileName)
-  return toPdfFile(file)
-}
-
 /**
 * @param marks - an array of Marks
 * @function hasValue removes any Mark without a property
 * @function scaleMark scales remaining marks in line with SCALE
 * @function byPage groups remaining Marks by their page marks.location.page
 */
-const groupMarksByFileNamePage = (marks: Mark[]) => {
+export const groupMarksByFileNamePage = (marks: Mark[]) => {
  return marks
    .filter(hasValue)
    .map(scaleMark)
-    .reduce<{ [filename: string]: { [page: number]: Mark[] } }>(byPage, {})
+    .reduce<{ [fileName: string]: { [page: number]: Mark[] } }>(byPage, {})
 }

 /**
@ -256,30 +212,19 @@ const groupMarksByFileNamePage = (marks: Mark[]) => {
 * @param obj - accumulator in the reducer callback
 * @param mark - current value, i.e. Mark being examined
 */
-const byPage = (
+export const byPage = (
  obj: { [filename: string]: { [page: number]: Mark[] } },
  mark: Mark
 ) => {
-  const filename = mark.fileName
+  const fileName = mark.fileName
  const pageNumber = mark.location.page
-  const pages = obj[filename] ?? {}
+  const pages = obj[fileName] ?? {}
  const marks = pages[pageNumber] ?? []
  return {
    ...obj,
-    [filename]: {
+    [fileName]: {
      ...pages,
      [pageNumber]: [...marks, mark]
    }
  }
 }
-
-export {
-  toFile,
-  toPdfFile,
-  toPdfFiles,
-  inPx,
-  convertToPdfFile,
-  addMarks,
-  convertToPdfBlob,
-  groupMarksByFileNamePage
-}
--- a/src/utils/utils.ts
+++ b/src/utils/utils.ts
@ -1,5 +1,5 @@
-import { PdfFile } from '../types/drawing.ts'
 import { CurrentUserFile } from '../types/file.ts'
+import { SigitFile } from './file.ts'

 export const compareObjects = (
  obj1: object | null | undefined,
@ -75,13 +75,13 @@ export const timeout = (ms: number = 60000) => {
 * @param creatorFileHashes
 */
 export const getCurrentUserFiles = (
-  files: { [filename: string]: PdfFile | File },
+  files: { [filename: string]: SigitFile },
  fileHashes: { [key: string]: string | null },
  creatorFileHashes: { [key: string]: string }
 ): CurrentUserFile[] => {
-  return Object.entries(files).map(([filename, pdfFile], index) => {
+  return Object.entries(files).map(([filename, file], index) => {
    return {
-      pdfFile,
+      file,
      filename,
      id: index + 1,
      ...(!!fileHashes[filename] && { hash: fileHashes[filename]! }),
@ -89,3 +89,32 @@ export const getCurrentUserFiles = (
    }
  })
 }
+
+/**
+ * Utility function that generates a promise with a callback on each array item
+ * and retuns only non-null fulfilled results
+ * @param array
+ * @param cb callback that generates a promise
+ * @returns Array with the non-null results
+ */
+export const settleAllFullfilfedPromises = async <Item, FulfilledItem = Item>(
+  array: Item[],
+  cb: (arg: Item) => Promise<FulfilledItem>
+) => {
+  // Run the callback on the array to get promises
+  const promises = array.map(cb)
+
+  // Use Promise.allSettled to wait for all promises to settle
+  const results = await Promise.allSettled(promises)
+
+  // Extract non-null values from fulfilled promises in a single pass
+  return results.reduce<NonNullable<FulfilledItem>[]>((acc, result) => {
+    if (result.status === 'fulfilled') {
+      const value = result.value
+      if (value) {
+        acc.push(value)
+      }
+    }
+    return acc
+  }, [])
+}