src/components/DrawPDFFields/index.tsx

@@ -1,15 +1,43 @@
-import { AccessTime, CalendarMonth, ExpandMore, Gesture, PictureAsPdf, Badge, Work, Close } from '@mui/icons-material'
+import {
-import { Box, Typography, Accordion, AccordionDetails, AccordionSummary, CircularProgress, FormControl, InputLabel, MenuItem, Select } from '@mui/material'
+  AccessTime,
+  CalendarMonth,
+  ExpandMore,
+  Gesture,
+  PictureAsPdf,
+  Badge,
+  Work,
+  Close
+} from '@mui/icons-material'
+import {
+  Box,
+  Typography,
+  Accordion,
+  AccordionDetails,
+  AccordionSummary,
+  CircularProgress,
+  FormControl,
+  InputLabel,
+  MenuItem,
+  Select
+} from '@mui/material'
 import styles from './style.module.scss'
 import { useEffect, useState } from 'react'
 
-import * as PDFJS from "pdfjs-dist";
+import * as PDFJS from 'pdfjs-dist'
-import { ProfileMetadata, User } from '../../types';
+import { ProfileMetadata, User } from '../../types'
-import { PdfFile, DrawTool, MouseState, PdfPage, DrawnField, MarkType } from '../../types/drawing';
+import {
-import { truncate } from 'lodash';
+  PdfFile,
-import { hexToNpub } from '../../utils';
+  DrawTool,
+  MouseState,
+  PdfPage,
+  DrawnField,
+  MarkType
+} from '../../types/drawing'
+import { truncate } from 'lodash'
+import { hexToNpub } from '../../utils'
 import { toPdfFiles } from '../../utils/pdf.ts'
-PDFJS.GlobalWorkerOptions.workerSrc = 'node_modules/pdfjs-dist/build/pdf.worker.mjs';
+PDFJS.GlobalWorkerOptions.workerSrc =
+  'node_modules/pdfjs-dist/build/pdf.worker.mjs'
 
 interface Props {
   selectedFiles: File[]
@@ -32,7 +60,6 @@ export const DrawPDFFields = (props: Props) => {
       icon: <Gesture />,
       label: 'Signature',
       active: false
-  
     },
     {
       identifier: MarkType.FULLNAME,
@@ -57,7 +84,7 @@ export const DrawPDFFields = (props: Props) => {
       icon: <AccessTime />,
       label: 'Datetime',
       active: false
-    },
+    }
   ])
 
   const [mouseState, setMouseState] = useState<MouseState>({
@@ -83,11 +110,11 @@ export const DrawPDFFields = (props: Props) => {
    */
   useEffect(() => {
     // window.addEventListener('mousedown', onMouseDown);
-    window.addEventListener('mouseup', onMouseUp);
+    window.addEventListener('mouseup', onMouseUp)
 
     return () => {
       // window.removeEventListener('mousedown', onMouseDown);
-      window.removeEventListener('mouseup', onMouseUp);
+      window.removeEventListener('mouseup', onMouseUp)
     }
   }, [])
 
@@ -212,7 +239,10 @@ export const DrawPDFFields = (props: Props) => {
    */
   const onDranwFieldMouseMove = (event: any, drawnField: DrawnField) => {
     if (mouseState.dragging) {
-      const { mouseX, mouseY, rect } = getMouseCoordinates(event, event.target.parentNode)
+      const { mouseX, mouseY, rect } = getMouseCoordinates(
+        event,
+        event.target.parentNode
+      )
       const coordsOffset = mouseState.coordsInWrapper
 
       if (coordsOffset) {
@@ -258,7 +288,10 @@ export const DrawPDFFields = (props: Props) => {
    */
   const onResizeHandleMouseMove = (event: any, drawnField: DrawnField) => {
     if (mouseState.resizing) {
-      const { mouseX, mouseY } = getMouseCoordinates(event, event.target.parentNode.parentNode)
+      const { mouseX, mouseY } = getMouseCoordinates(
+        event,
+        event.target.parentNode.parentNode
+      )
 
       const width = mouseX - drawnField.left
       const height = mouseY - drawnField.top
@@ -277,10 +310,18 @@ export const DrawPDFFields = (props: Props) => {
    * @param pdfPageIndex pdf page index
    * @param drawnFileIndex drawn file index
    */
-  const onRemoveHandleMouseDown = (event: any, pdfFileIndex: number, pdfPageIndex: number, drawnFileIndex: number) => {
+  const onRemoveHandleMouseDown = (
+    event: any,
+    pdfFileIndex: number,
+    pdfPageIndex: number,
+    drawnFileIndex: number
+  ) => {
     event.stopPropagation()
 
-    pdfFiles[pdfFileIndex].pages[pdfPageIndex].drawnFields.splice(drawnFileIndex, 1)
+    pdfFiles[pdfFileIndex].pages[pdfPageIndex].drawnFields.splice(
+      drawnFileIndex,
+      1
+    )
   }
 
   /**
@@ -300,9 +341,9 @@ export const DrawPDFFields = (props: Props) => {
    */
   const getMouseCoordinates = (event: any, customTarget?: any) => {
     const target = customTarget ? customTarget : event.target
-    const rect = target.getBoundingClientRect();
+    const rect = target.getBoundingClientRect()
-    const mouseX = event.clientX - rect.left; //x position within the element.
+    const mouseX = event.clientX - rect.left //x position within the element.
-    const mouseY = event.clientY - rect.top;  //y position within the element.
+    const mouseY = event.clientY - rect.top //y position within the element.
 
     return {
       mouseX,
@@ -316,7 +357,7 @@ export const DrawPDFFields = (props: Props) => {
    * creates the pdfFiles object and sets to a state
    */
   const parsePdfPages = async () => {
-    const pdfFiles: PdfFile[] = await toPdfFiles(selectedFiles);
+    const pdfFiles: PdfFile[] = await toPdfFiles(selectedFiles)
 
     setPdfFiles(pdfFiles)
   }
@@ -326,7 +367,7 @@ export const DrawPDFFields = (props: Props) => {
    * @returns if expanded pdf accordion is present
    */
   const hasExpandedPdf = () => {
-    return !!pdfFiles.filter(pdfFile => !!pdfFile.expanded).length
+    return !!pdfFiles.filter((pdfFile) => !!pdfFile.expanded).length
   }
 
   const handleAccordionExpandChange = (expanded: boolean, pdfFile: PdfFile) => {
@@ -355,9 +396,11 @@ export const DrawPDFFields = (props: Props) => {
    */
   const getPdfPages = (pdfFile: PdfFile, pdfFileIndex: number) => {
     return (
-      <Box sx={{
+      <Box
+        sx={{
           width: '100%'
-      }}>
+        }}
+      >
         {pdfFile.pages.map((page, pdfPageIndex: number) => {
           return (
             <div
@@ -367,17 +410,27 @@ export const DrawPDFFields = (props: Props) => {
                 marginBottom: '10px'
               }}
               className={`${styles.pdfImageWrapper} ${selectedTool ? styles.drawing : ''}`}
-              onMouseMove={(event) => {onMouseMove(event, page)}}
+              onMouseMove={(event) => {
-              onMouseDown={(event) => {onMouseDown(event, page)}}
+                onMouseMove(event, page)
+              }}
+              onMouseDown={(event) => {
+                onMouseDown(event, page)
+              }}
             >
-              <img draggable="false" style={{ width: '100%' }} src={page.image}/>
+              <img
+                draggable="false"
+                style={{ width: '100%' }}
+                src={page.image}
+              />
 
               {page.drawnFields.map((drawnField, drawnFieldIndex: number) => {
                 return (
                   <div
                     key={drawnFieldIndex}
                     onMouseDown={onDrawnFieldMouseDown}
-                    onMouseMove={(event) => { onDranwFieldMouseMove(event, drawnField)}}
+                    onMouseMove={(event) => {
+                      onDranwFieldMouseMove(event, drawnField)
+                    }}
                     className={styles.drawingRectangle}
                     style={{
                       left: `${drawnField.left}px`,
@@ -389,41 +442,68 @@ export const DrawPDFFields = (props: Props) => {
                   >
                     <span
                       onMouseDown={onResizeHandleMouseDown}
-                      onMouseMove={(event) => {onResizeHandleMouseMove(event, drawnField)}}
+                      onMouseMove={(event) => {
+                        onResizeHandleMouseMove(event, drawnField)
+                      }}
                       className={styles.resizeHandle}
                     ></span>
                     <span
-                      onMouseDown={(event) => {onRemoveHandleMouseDown(event, pdfFileIndex, pdfPageIndex, drawnFieldIndex)}}
+                      onMouseDown={(event) => {
+                        onRemoveHandleMouseDown(
+                          event,
+                          pdfFileIndex,
+                          pdfPageIndex,
+                          drawnFieldIndex
+                        )
+                      }}
                       className={styles.removeHandle}
                     >
-                      <Close fontSize='small'/>
+                      <Close fontSize="small" />
                     </span>
                     <div
                       onMouseDown={onUserSelectHandleMouseDown}
                       className={styles.userSelect}
                     >
-                      <FormControl fullWidth size='small'>
+                      <FormControl fullWidth size="small">
                         <InputLabel id="counterparts">Counterpart</InputLabel>
                         <Select
                           value={drawnField.counterpart}
-                          onChange={(event) => { drawnField.counterpart = event.target.value; refreshPdfFiles() }}
+                          onChange={(event) => {
+                            drawnField.counterpart = event.target.value
+                            refreshPdfFiles()
+                          }}
                           labelId="counterparts"
                           label="Counterparts"
                         >
                           {props.users.map((user, index) => {
-                            let displayValue = truncate(hexToNpub(user.pubkey), {
+                            let displayValue = truncate(
+                              hexToNpub(user.pubkey),
+                              {
                                 length: 16
-                            })
+                              }
+                            )
 
                             const metadata = props.metadata[user.pubkey]
 
                             if (metadata) {
-                              displayValue = truncate(metadata.name || metadata.display_name || metadata.username, {
+                              displayValue = truncate(
+                                metadata.name ||
+                                  metadata.display_name ||
+                                  metadata.username,
+                                {
                                   length: 16
-                              })
+                                }
+                              )
                             }
 
-                            return <MenuItem key={index} value={hexToNpub(user.pubkey)}>{displayValue}</MenuItem>
+                            return (
+                              <MenuItem
+                                key={index}
+                                value={hexToNpub(user.pubkey)}
+                              >
+                                {displayValue}
+                              </MenuItem>
+                            )
                           })}
                         </Select>
                       </FormControl>
@@ -457,7 +537,13 @@ export const DrawPDFFields = (props: Props) => {
 
         {pdfFiles.map((pdfFile, pdfFileIndex: number) => {
           return (
-            <Accordion key={pdfFileIndex} expanded={pdfFile.expanded} onChange={(_event, expanded) => {handleAccordionExpandChange(expanded, pdfFile)}}>
+            <Accordion
+              key={pdfFileIndex}
+              expanded={pdfFile.expanded}
+              onChange={(_event, expanded) => {
+                handleAccordionExpandChange(expanded, pdfFile)
+              }}
+            >
               <AccordionSummary
                 expandIcon={<ExpandMore />}
                 aria-controls={`panel${pdfFileIndex}-content`}
@@ -477,11 +563,17 @@ export const DrawPDFFields = (props: Props) => {
       {showDrawToolBox && (
         <Box className={styles.drawToolBoxContainer}>
           <Box className={styles.drawToolBox}>
-            {toolbox.filter(drawTool => drawTool.active).map((drawTool: DrawTool, index: number) => {
+            {toolbox
+              .filter((drawTool) => drawTool.active)
+              .map((drawTool: DrawTool, index: number) => {
                 return (
                   <Box
                     key={index}
-                  onClick={() => {handleToolSelect(drawTool)}} className={`${styles.toolItem} ${selectedTool?.identifier === drawTool.identifier ? styles.selected : ''}`}>
+                    onClick={() => {
+                      handleToolSelect(drawTool)
+                    }}
+                    className={`${styles.toolItem} ${selectedTool?.identifier === drawTool.identifier ? styles.selected : ''}`}
+                  >
                     {drawTool.icon}
                     {drawTool.label}
                   </Box>

src/components/PDFView/PdfItem.tsx

@@ -1,6 +1,6 @@
 import { PdfFile } from '../../types/drawing.ts'
 import { CurrentUserMark } from '../../types/mark.ts'
-import PdfPageItem  from './PdfPageItem.tsx';
+import PdfPageItem from './PdfPageItem.tsx'
 
 interface PdfItemProps {
   pdfFile: PdfFile
@@ -13,12 +13,20 @@ interface PdfItemProps {
 /**
  * Responsible for displaying pages of a single Pdf File.
  */
-const PdfItem = ({ pdfFile, currentUserMarks, handleMarkClick, selectedMarkValue, selectedMark }: PdfItemProps) => {
+const PdfItem = ({
-  const filterByPage = (marks: CurrentUserMark[], page: number): CurrentUserMark[] => {
+  pdfFile,
-    return marks.filter((m) => m.mark.location.page === page);
+  currentUserMarks,
+  handleMarkClick,
+  selectedMarkValue,
+  selectedMark
+}: PdfItemProps) => {
+  const filterByPage = (
+    marks: CurrentUserMark[],
+    page: number
+  ): CurrentUserMark[] => {
+    return marks.filter((m) => m.mark.location.page === page)
   }
-  return (
+  return pdfFile.pages.map((page, i) => {
-    pdfFile.pages.map((page, i) => {
     return (
       <PdfPageItem
         page={page}
@@ -29,7 +37,7 @@ const PdfItem = ({ pdfFile, currentUserMarks, handleMarkClick, selectedMarkValue
         selectedMark={selectedMark}
       />
     )
-  }))
+  })
 }
 
 export default PdfItem

src/components/PDFView/PdfMarkItem.tsx

@@ -12,14 +12,18 @@ interface PdfMarkItemProps {
 /**
  * Responsible for display an individual Pdf Mark.
  */
-const PdfMarkItem = ({ selectedMark, handleMarkClick, selectedMarkValue, userMark }: PdfMarkItemProps) => {
+const PdfMarkItem = ({
-  const { location } = userMark.mark;
+  selectedMark,
-  const handleClick = () => handleMarkClick(userMark.mark.id);
+  handleMarkClick,
-  const getMarkValue = () => (
+  selectedMarkValue,
+  userMark
+}: PdfMarkItemProps) => {
+  const { location } = userMark.mark
+  const handleClick = () => handleMarkClick(userMark.mark.id)
+  const getMarkValue = () =>
     selectedMark?.mark.id === userMark.mark.id
       ? selectedMarkValue
       : userMark.mark.value
-  )
   return (
     <div
       onClick={handleClick}
@@ -30,7 +34,9 @@ const PdfMarkItem = ({ selectedMark, handleMarkClick, selectedMarkValue, userMar
         width: inPx(location.width),
         height: inPx(location.height)
       }}
-    >{getMarkValue()}</div>
+    >
+      {getMarkValue()}
+    </div>
   )
 }
 

src/components/PDFView/PdfMarking.tsx

@@ -6,17 +6,17 @@ import React, { useState, useEffect } from 'react'
 import {
   findNextCurrentUserMark,
   isCurrentUserMarksComplete,
-  updateCurrentUserMarks,
+  updateCurrentUserMarks
 } from '../../utils'
 import { EMPTY } from '../../utils/const.ts'
 import { Container } from '../Container'
 import styles from '../../pages/sign/style.module.scss'
 
 interface PdfMarkingProps {
-  files: { pdfFile: PdfFile, filename: string, hash: string | null }[],
+  files: { pdfFile: PdfFile; filename: string; hash: string | null }[]
-  currentUserMarks: CurrentUserMark[],
+  currentUserMarks: CurrentUserMark[]
-  setIsReadyToSign: (isReadyToSign: boolean) => void,
+  setIsReadyToSign: (isReadyToSign: boolean) => void
-  setCurrentUserMarks: (currentUserMarks: CurrentUserMark[]) => void,
+  setCurrentUserMarks: (currentUserMarks: CurrentUserMark[]) => void
   setUpdatedMarks: (markToUpdate: Mark) => void
 }
 
@@ -35,21 +35,21 @@ const PdfMarking = (props: PdfMarkingProps) => {
     setUpdatedMarks
   } = props
   const [selectedMark, setSelectedMark] = useState<CurrentUserMark | null>(null)
-  const [selectedMarkValue, setSelectedMarkValue] = useState<string>("")
+  const [selectedMarkValue, setSelectedMarkValue] = useState<string>('')
 
   useEffect(() => {
     setSelectedMark(findNextCurrentUserMark(currentUserMarks) || null)
   }, [currentUserMarks])
 
   const handleMarkClick = (id: number) => {
-    const nextMark = currentUserMarks.find((mark) => mark.mark.id === id);
+    const nextMark = currentUserMarks.find((mark) => mark.mark.id === id)
-    setSelectedMark(nextMark!);
+    setSelectedMark(nextMark!)
-    setSelectedMarkValue(nextMark?.mark.value ?? EMPTY);
+    setSelectedMarkValue(nextMark?.mark.value ?? EMPTY)
   }
 
   const handleSubmit = (event: React.FormEvent<HTMLFormElement>) => {
-    event.preventDefault();
+    event.preventDefault()
-    if (!selectedMarkValue || !selectedMark) return;
+    if (!selectedMarkValue || !selectedMark) return
 
     const updatedMark: CurrentUserMark = {
       ...selectedMark,
@@ -61,7 +61,10 @@ const PdfMarking = (props: PdfMarkingProps) => {
     }
 
     setSelectedMarkValue(EMPTY)
-    const updatedCurrentUserMarks = updateCurrentUserMarks(currentUserMarks, updatedMark);
+    const updatedCurrentUserMarks = updateCurrentUserMarks(
+      currentUserMarks,
+      updatedMark
+    )
     setCurrentUserMarks(updatedCurrentUserMarks)
     setSelectedMark(findNextCurrentUserMark(updatedCurrentUserMarks) || null)
     console.log(isCurrentUserMarksComplete(updatedCurrentUserMarks))
@@ -69,22 +72,22 @@ const PdfMarking = (props: PdfMarkingProps) => {
     setUpdatedMarks(updatedMark.mark)
   }
 
-  const handleChange = (event: React.ChangeEvent<HTMLInputElement>) => setSelectedMarkValue(event.target.value)
+  const handleChange = (event: React.ChangeEvent<HTMLInputElement>) =>
+    setSelectedMarkValue(event.target.value)
 
   return (
     <>
       <Container className={styles.container}>
-        {
+        {currentUserMarks?.length > 0 && (
-          currentUserMarks?.length > 0 && (
           <PdfView
             files={files}
             handleMarkClick={handleMarkClick}
             selectedMarkValue={selectedMarkValue}
             selectedMark={selectedMark}
             currentUserMarks={currentUserMarks}
-            />)}
+          />
-        {
+        )}
-          selectedMark !== null && (
+        {selectedMark !== null && (
           <MarkFormField
             handleSubmit={handleSubmit}
             handleChange={handleChange}

src/components/PDFView/PdfPageItem.tsx

@@ -13,7 +13,13 @@ interface PdfPageProps {
 /**
  * Responsible for rendering a single Pdf Page and its Marks
  */
-const PdfPageItem = ({ page, currentUserMarks, handleMarkClick, selectedMarkValue, selectedMark }: PdfPageProps) => {
+const PdfPageItem = ({
+  page,
+  currentUserMarks,
+  handleMarkClick,
+  selectedMarkValue,
+  selectedMark
+}: PdfPageProps) => {
   return (
     <div
       className={styles.pdfImageWrapper}
@@ -23,14 +29,8 @@ const PdfPageItem = ({ page, currentUserMarks, handleMarkClick, selectedMarkValu
         marginTop: '10px'
       }}
     >
-      <img
+      <img draggable="false" src={page.image} style={{ width: '100%' }} />
-        draggable="false"
+      {currentUserMarks.map((m, i) => (
-        src={page.image}
-        style={{ width: '100%'}}
-
-      />
-      {
-        currentUserMarks.map((m, i) => (
         <PdfMarkItem
           key={i}
           handleMarkClick={handleMarkClick}

src/components/PDFView/index.tsx

@@ -4,7 +4,7 @@ import PdfItem from './PdfItem.tsx'
 import { CurrentUserMark } from '../../types/mark.ts'
 
 interface PdfViewProps {
-  files: { pdfFile: PdfFile, filename: string, hash: string | null }[]
+  files: { pdfFile: PdfFile; filename: string; hash: string | null }[]
   currentUserMarks: CurrentUserMark[]
   handleMarkClick: (id: number) => void
   selectedMarkValue: string
@@ -14,14 +14,24 @@ interface PdfViewProps {
 /**
  * Responsible for rendering Pdf files.
  */
-const PdfView = ({ files, currentUserMarks, handleMarkClick, selectedMarkValue, selectedMark }: PdfViewProps) => {
+const PdfView = ({
-  const filterByFile = (currentUserMarks: CurrentUserMark[], hash: string): CurrentUserMark[] => {
+  files,
-    return currentUserMarks.filter((currentUserMark) => currentUserMark.mark.pdfFileHash === hash)
+  currentUserMarks,
+  handleMarkClick,
+  selectedMarkValue,
+  selectedMark
+}: PdfViewProps) => {
+  const filterByFile = (
+    currentUserMarks: CurrentUserMark[],
+    hash: string
+  ): CurrentUserMark[] => {
+    return currentUserMarks.filter(
+      (currentUserMark) => currentUserMark.mark.pdfFileHash === hash
+    )
   }
   return (
     <Box sx={{ width: '100%' }}>
-      {
+      {files.map(({ pdfFile, hash }, i) => {
-        files.map(({ pdfFile, hash }, i) => {
         if (!hash) return
         return (
           <PdfItem
@@ -33,10 +43,9 @@ const PdfView = ({ files, currentUserMarks, handleMarkClick, selectedMarkValue,
             selectedMarkValue={selectedMarkValue}
           />
         )
-        })
+      })}
-      }
     </Box>
   )
 }
 
-export default PdfView;
+export default PdfView

src/index.css

@@ -111,7 +111,9 @@ button:disabled {
 /* Fonts */
 @font-face {
   font-family: 'Roboto';
-  src: local('Roboto Medium'), local('Roboto-Medium'),
+  src:
+    local('Roboto Medium'),
+    local('Roboto-Medium'),
     url('assets/fonts/roboto-medium.woff2') format('woff2'),
     url('assets/fonts/roboto-medium.woff') format('woff');
   font-weight: 500;
@@ -121,7 +123,9 @@ button:disabled {
 
 @font-face {
   font-family: 'Roboto';
-  src: local('Roboto Light'), local('Roboto-Light'),
+  src:
+    local('Roboto Light'),
+    local('Roboto-Light'),
     url('assets/fonts/roboto-light.woff2') format('woff2'),
     url('assets/fonts/roboto-light.woff') format('woff');
   font-weight: 300;
@@ -131,7 +135,9 @@ button:disabled {
 
 @font-face {
   font-family: 'Roboto';
-  src: local('Roboto Bold'), local('Roboto-Bold'),
+  src:
+    local('Roboto Bold'),
+    local('Roboto-Bold'),
     url('assets/fonts/roboto-bold.woff2') format('woff2'),
     url('assets/fonts/roboto-bold.woff') format('woff');
   font-weight: bold;
@@ -141,7 +147,9 @@ button:disabled {
 
 @font-face {
   font-family: 'Roboto';
-  src: local('Roboto'), local('Roboto-Regular'),
+  src:
+    local('Roboto'),
+    local('Roboto-Regular'),
     url('assets/fonts/roboto-regular.woff2') format('woff2'),
     url('assets/fonts/roboto-regular.woff') format('woff');
   font-weight: normal;

src/pages/create/index.tsx

@@ -342,8 +342,9 @@ export const CreatePage = () => {
   }
 
   const createMarks = (fileHashes: { [key: string]: string }): Mark[] => {
-    return drawnPdfs.flatMap((drawnPdf) => {
+    return drawnPdfs
-      const fileHash = fileHashes[drawnPdf.file.name];
+      .flatMap((drawnPdf) => {
+        const fileHash = fileHashes[drawnPdf.file.name]
         return drawnPdf.pages.flatMap((page, index) => {
           return page.drawnFields.map((drawnField) => {
             return {
@@ -353,7 +354,7 @@ export const CreatePage = () => {
                 top: drawnField.top,
                 left: drawnField.left,
                 height: drawnField.height,
-              width: drawnField.width,
+                width: drawnField.width
               },
               npub: drawnField.counterpart,
               pdfFileHash: fileHash
@@ -363,7 +364,7 @@ export const CreatePage = () => {
       })
       .map((mark, index) => {
         return { ...mark, id: index }
-      });
+      })
   }
 
   // Handle errors during zip file generation
@@ -431,13 +432,9 @@ export const CreatePage = () => {
 
     if (!arraybuffer) return null
 
-    return new File(
+    return new File([new Blob([arraybuffer])], `${unixNow}.sigit.zip`, {
-      [new Blob([arraybuffer])],
-      `${unixNow}.sigit.zip`,
-      {
       type: 'application/zip'
-      }
+    })
-    )
   }
 
   // Handle errors during file upload
@@ -545,9 +542,7 @@ export const CreatePage = () => {
         : viewers.map((viewer) => viewer.pubkey)
     ).filter((receiver) => receiver !== usersPubkey)
 
-    return receivers.map((receiver) =>
+    return receivers.map((receiver) => sendNotification(receiver, meta))
-      sendNotification(receiver, meta)
-    )
   }
 
   const handleCreate = async () => {

src/pages/sign/MarkFormField.tsx

@@ -15,8 +15,8 @@ interface MarkFormFieldProps {
  * Responsible for rendering a form field connected to a mark and keeping track of its value.
  */
 const MarkFormField = (props: MarkFormFieldProps) => {
-  const { handleSubmit, handleChange, selectedMark, selectedMarkValue } = props;
+  const { handleSubmit, handleChange, selectedMark, selectedMarkValue } = props
-  const getSubmitButton = () => selectedMark.isLast ? 'Complete' : 'Next';
+  const getSubmitButton = () => (selectedMark.isLast ? 'Complete' : 'Next')
   return (
     <div className={styles.fixedBottomForm}>
       <Box component="form" onSubmit={handleSubmit}>
@@ -34,4 +34,4 @@ const MarkFormField = (props: MarkFormFieldProps) => {
   )
 }
 
-export default MarkFormField;
+export default MarkFormField

src/pages/sign/index.tsx

@@ -16,13 +16,16 @@ import { State } from '../../store/rootReducer'
 import { CreateSignatureEventContent, Meta, SignedEvent } from '../../types'
 import {
   decryptArrayBuffer,
-  encryptArrayBuffer, extractMarksFromSignedMeta,
+  encryptArrayBuffer,
+  extractMarksFromSignedMeta,
   extractZipUrlAndEncryptionKey,
   generateEncryptionKey,
-  generateKeysFile, getFilesWithHashes,
+  generateKeysFile,
+  getFilesWithHashes,
   getHash,
   hexToNpub,
-  isOnline, loadZip,
+  isOnline,
+  loadZip,
   now,
   npubToHex,
   parseJson,
@@ -41,7 +44,8 @@ import { getLastSignersSig } from '../../utils/sign.ts'
 import {
   filterMarksByPubkey,
   getCurrentUserMarks,
-  isCurrentUserMarksComplete, updateMarks
+  isCurrentUserMarksComplete,
+  updateMarks
 } from '../../utils'
 import PdfMarking from '../../components/PDFView/PdfMarking.tsx'
 enum SignedStatus {
@@ -100,8 +104,10 @@ export const SignPage = () => {
 
   const [authUrl, setAuthUrl] = useState<string>()
   const nostrController = NostrController.getInstance()
-  const [currentUserMarks, setCurrentUserMarks] = useState<CurrentUserMark[]>([]);
+  const [currentUserMarks, setCurrentUserMarks] = useState<CurrentUserMark[]>(
-  const [isReadyToSign, setIsReadyToSign] = useState(false);
+    []
+  )
+  const [isReadyToSign, setIsReadyToSign] = useState(false)
 
   useEffect(() => {
     if (signers.length > 0) {
@@ -192,13 +198,16 @@ export const SignPage = () => {
       setViewers(createSignatureContent.viewers)
       setCreatorFileHashes(createSignatureContent.fileHashes)
       setSubmittedBy(createSignatureEvent.pubkey)
-      setMarks(createSignatureContent.markConfig);
+      setMarks(createSignatureContent.markConfig)
 
       if (usersPubkey) {
-        const metaMarks = filterMarksByPubkey(createSignatureContent.markConfig, usersPubkey!)
+        const metaMarks = filterMarksByPubkey(
+          createSignatureContent.markConfig,
+          usersPubkey!
+        )
         const signedMarks = extractMarksFromSignedMeta(meta)
-        const currentUserMarks = getCurrentUserMarks(metaMarks, signedMarks);
+        const currentUserMarks = getCurrentUserMarks(metaMarks, signedMarks)
-        setCurrentUserMarks(currentUserMarks);
+        setCurrentUserMarks(currentUserMarks)
         // setCurrentUserMark(findNextCurrentUserMark(currentUserMarks) || null)
         setIsReadyToSign(isCurrentUserMarksComplete(currentUserMarks))
       }
@@ -307,7 +316,7 @@ export const SignPage = () => {
       )
 
       if (arrayBuffer) {
-        files[fileName] = await convertToPdfFile(arrayBuffer, fileName);
+        files[fileName] = await convertToPdfFile(arrayBuffer, fileName)
 
         const hash = await getHash(arrayBuffer)
         if (hash) {
@@ -348,7 +357,7 @@ export const SignPage = () => {
   const decrypt = async (file: File) => {
     setLoadingSpinnerDesc('Decrypting file')
 
-    const zip = await loadZip(file);
+    const zip = await loadZip(file)
     if (!zip) return
 
     const parsedKeysJson = await parseKeysJson(zip)
@@ -439,7 +448,7 @@ export const SignPage = () => {
       )
 
       if (arrayBuffer) {
-        files[fileName] = await convertToPdfFile(arrayBuffer, fileName);
+        files[fileName] = await convertToPdfFile(arrayBuffer, fileName)
 
         const hash = await getHash(arrayBuffer)
         if (hash) {
@@ -520,7 +529,10 @@ export const SignPage = () => {
   }
 
   // Sign the event for the meta file
-  const signEventForMeta = async (signerContent: { prevSig: string, marks: Mark[] }) => {
+  const signEventForMeta = async (signerContent: {
+    prevSig: string
+    marks: Mark[]
+  }) => {
     return await signEventForMetaFile(
       JSON.stringify(signerContent),
       nostrController,
@@ -529,8 +541,8 @@ export const SignPage = () => {
   }
 
   const getSignerMarksForMeta = (): Mark[] | undefined => {
-    if (currentUserMarks.length === 0) return;
+    if (currentUserMarks.length === 0) return
-    return currentUserMarks.map(( { mark }: CurrentUserMark) => mark);
+    return currentUserMarks.map(({ mark }: CurrentUserMark) => mark)
   }
 
   // Update the meta signatures
@@ -600,13 +612,9 @@ export const SignPage = () => {
 
     if (!arraybuffer) return null
 
-    return new File(
+    return new File([new Blob([arraybuffer])], `${unixNow}.sigit.zip`, {
-      [new Blob([arraybuffer])],
-      `${unixNow}.sigit.zip`,
-      {
       type: 'application/zip'
-      }
+    })
-    )
   }
 
   // Handle errors during zip file generation
@@ -694,7 +702,7 @@ export const SignPage = () => {
     setIsLoading(true)
     setLoadingSpinnerDesc('Signing nostr event')
 
-    if (!meta) return;
+    if (!meta) return
 
     const prevSig = getLastSignersSig(meta, signers)
     if (!prevSig) return
@@ -918,11 +926,13 @@ export const SignPage = () => {
     )
   }
 
-  return <PdfMarking
+  return (
+    <PdfMarking
       files={getFilesWithHashes(files, currentFileHashes)}
       currentUserMarks={currentUserMarks}
       setIsReadyToSign={setIsReadyToSign}
       setCurrentUserMarks={setCurrentUserMarks}
       setUpdatedMarks={setUpdatedMarks}
     />
+  )
 }

src/pages/verify/index.tsx

@@ -23,14 +23,17 @@ import {
   SignedEventContent
 } from '../../types'
 import {
-  decryptArrayBuffer, extractMarksFromSignedMeta,
+  decryptArrayBuffer,
+  extractMarksFromSignedMeta,
   extractZipUrlAndEncryptionKey,
   getHash,
-  hexToNpub, now,
+  hexToNpub,
+  now,
   npubToHex,
   parseJson,
   readContentOfZipEntry,
-  shorten, signEventForMetaFile
+  shorten,
+  signEventForMetaFile
 } from '../../utils'
 import styles from './style.module.scss'
 import { Cancel, CheckCircle } from '@mui/icons-material'
@@ -41,7 +44,7 @@ import {
   addMarks,
   convertToPdfBlob,
   convertToPdfFile,
-  groupMarksByPage,
+  groupMarksByPage
 } from '../../utils/pdf.ts'
 import { State } from '../../store/rootReducer.ts'
 import { useSelector } from 'react-redux'
@@ -155,7 +158,10 @@ export const VerifyPage = () => {
                 )
 
                 if (arrayBuffer) {
-                  files[fileName] = await convertToPdfFile(arrayBuffer, fileName!)
+                  files[fileName] = await convertToPdfFile(
+                    arrayBuffer,
+                    fileName!
+                  )
                   const hash = await getHash(arrayBuffer)
 
                   if (hash) {
@@ -169,7 +175,6 @@ export const VerifyPage = () => {
               setCurrentFileHashes(fileHashes)
               setFiles(files)
 
-
               setSigners(createSignatureContent.signers)
               setViewers(createSignatureContent.viewers)
               setCreatorFileHashes(createSignatureContent.fileHashes)
@@ -177,8 +182,6 @@ export const VerifyPage = () => {
 
               setMeta(metaInNavState)
               setIsLoading(false)
-
-
             }
           })
           .catch((err) => {
@@ -381,7 +384,7 @@ export const VerifyPage = () => {
   }
 
   const handleExport = async () => {
-    if (Object.entries(files).length === 0 ||!meta ||!usersPubkey) return;
+    if (Object.entries(files).length === 0 || !meta || !usersPubkey) return
 
     const usersNpub = hexToNpub(usersPubkey)
     if (
@@ -395,10 +398,10 @@ export const VerifyPage = () => {
     setIsLoading(true)
     setLoadingSpinnerDesc('Signing nostr event')
 
-    if (!meta) return;
+    if (!meta) return
 
     const prevSig = getLastSignersSig(meta, signers)
-    if (!prevSig) return;
+    if (!prevSig) return
 
     const signedEvent = await signEventForMetaFile(
       JSON.stringify({ prevSig }),
@@ -406,7 +409,7 @@ export const VerifyPage = () => {
       setIsLoading
     )
 
-    if (!signedEvent) return;
+    if (!signedEvent) return
 
     const exportSignature = JSON.stringify(signedEvent, null, 2)
     const updatedMeta = { ...meta, exportSignature }

src/types/drawing.ts

@@ -9,7 +9,7 @@ export interface MouseState {
 }
 
 export interface PdfFile {
-  file: File,
+  file: File
   pages: PdfPage[]
   expanded?: boolean
 }
@@ -34,7 +34,7 @@ export interface DrawnField {
 export interface DrawTool {
   identifier: MarkType
   label: string
-  icon: JSX.Element,
+  icon: JSX.Element
   defaultValue?: string
   selected?: boolean
   active?: boolean

src/types/mark.ts

@@ -1,4 +1,4 @@
-import { MarkType } from "./drawing";
+import { MarkType } from './drawing'
 
 export interface CurrentUserMark {
   mark: Mark
@@ -7,18 +7,18 @@ export interface CurrentUserMark {
 }
 
 export interface Mark {
-  id: number;
+  id: number
-  npub: string;
+  npub: string
-  pdfFileHash: string;
+  pdfFileHash: string
-  type: MarkType;
+  type: MarkType
-  location: MarkLocation;
+  location: MarkLocation
-  value?: string;
+  value?: string
 }
 
 export interface MarkLocation {
-  top: number;
+  top: number
-  left: number;
+  left: number
-  height: number;
+  height: number
-  width: number;
+  width: number
-  page: number;
+  page: number
 }

src/types/zip.ts

@@ -11,16 +11,18 @@
 }
 
 interface InputByType {
-  base64: string;
+  base64: string
-  string: string;
+  string: string
-  text: string;
+  text: string
-  binarystring: string;
+  binarystring: string
-  array: number[];
+  array: number[]
-  uint8array: Uint8Array;
+  uint8array: Uint8Array
-  arraybuffer: ArrayBuffer;
+  arraybuffer: ArrayBuffer
-  blob: Blob;
+  blob: Blob
-  stream: NodeJS.ReadableStream;
+  stream: NodeJS.ReadableStream
 }
 
 export type OutputType = keyof OutputByType
-export type InputFileFormat = InputByType[keyof InputByType] | Promise<InputByType[keyof InputByType]>;
+export type InputFileFormat =
+  | InputByType[keyof InputByType]
+  | Promise<InputByType[keyof InputByType]>

src/utils/mark.ts

@@ -9,9 +9,12 @@ import { Event } from 'nostr-tools'
  * @param marks - default Marks extracted from Meta
  * @param signedMetaMarks - signed user Marks extracted from DocSignatures
  */
-const getCurrentUserMarks = (marks: Mark[], signedMetaMarks: Mark[]): CurrentUserMark[] => {
+const getCurrentUserMarks = (
+  marks: Mark[],
+  signedMetaMarks: Mark[]
+): CurrentUserMark[] => {
   return marks.map((mark, index, arr) => {
-    const signedMark = signedMetaMarks.find((m) => m.id === mark.id);
+    const signedMark = signedMetaMarks.find((m) => m.id === mark.id)
     if (signedMark && !!signedMark.value) {
       mark.value = signedMark.value
     }
@@ -27,8 +30,10 @@ const getCurrentUserMarks = (marks: Mark[], signedMetaMarks: Mark[]): CurrentUse
  * Returns next incomplete CurrentUserMark if there is one
  * @param usersMarks
  */
-const findNextCurrentUserMark = (usersMarks: CurrentUserMark[]): CurrentUserMark | undefined => {
+const findNextCurrentUserMark = (
-  return usersMarks.find((mark) => !mark.isCompleted);
+  usersMarks: CurrentUserMark[]
+): CurrentUserMark | undefined => {
+  return usersMarks.find((mark) => !mark.isCompleted)
 }
 
 /**
@@ -37,7 +42,7 @@ const findNextCurrentUserMark = (usersMarks: CurrentUserMark[]): CurrentUserMark
  * @param pubkey
  */
 const filterMarksByPubkey = (marks: Mark[], pubkey: string): Mark[] => {
-  return marks.filter(mark => mark.npub === hexToNpub(pubkey))
+  return marks.filter((mark) => mark.npub === hexToNpub(pubkey))
 }
 
 /**
@@ -57,7 +62,9 @@ const extractMarksFromSignedMeta = (meta: Meta): Mark[] => {
  * marked as complete.
  * @param currentUserMarks
  */
-const isCurrentUserMarksComplete = (currentUserMarks: CurrentUserMark[]): boolean => {
+const isCurrentUserMarksComplete = (
+  currentUserMarks: CurrentUserMark[]
+): boolean => {
   return currentUserMarks.every((mark) => mark.isCompleted)
 }
 
@@ -68,7 +75,7 @@ const isCurrentUserMarksComplete = (currentUserMarks: CurrentUserMark[]): boolea
  * @param markToUpdate
  */
 const updateMarks = (marks: Mark[], markToUpdate: Mark): Mark[] => {
-  const indexToUpdate = marks.findIndex(mark => mark.id === markToUpdate.id);
+  const indexToUpdate = marks.findIndex((mark) => mark.id === markToUpdate.id)
   return [
     ...marks.slice(0, indexToUpdate),
     markToUpdate,
@@ -76,8 +83,13 @@ const updateMarks = (marks: Mark[], markToUpdate: Mark): Mark[] => {
   ]
 }
 
-const updateCurrentUserMarks = (currentUserMarks: CurrentUserMark[], markToUpdate: CurrentUserMark): CurrentUserMark[] => {
+const updateCurrentUserMarks = (
-  const indexToUpdate = currentUserMarks.findIndex((m) => m.mark.id === markToUpdate.mark.id)
+  currentUserMarks: CurrentUserMark[],
+  markToUpdate: CurrentUserMark
+): CurrentUserMark[] => {
+  const indexToUpdate = currentUserMarks.findIndex(
+    (m) => m.mark.id === markToUpdate.mark.id
+  )
   return [
     ...currentUserMarks.slice(0, indexToUpdate),
     markToUpdate,
@@ -85,7 +97,7 @@ const updateCurrentUserMarks = (currentUserMarks: CurrentUserMark[], markToUpdat
   ]
 }
 
-const isLast = <T>(index: number, arr: T[]) => (index === (arr.length -1))
+const isLast = <T>(index: number, arr: T[]) => index === arr.length - 1
 
 export {
   getCurrentUserMarks,
@@ -94,5 +106,5 @@ export {
   isCurrentUserMarksComplete,
   findNextCurrentUserMark,
   updateMarks,
-  updateCurrentUserMarks,
+  updateCurrentUserMarks
 }

src/utils/pdf.ts

@@ -3,13 +3,14 @@ import * as PDFJS from 'pdfjs-dist'
 import { PDFDocument } from 'pdf-lib'
 import { Mark } from '../types/mark.ts'
 
-PDFJS.GlobalWorkerOptions.workerSrc = 'node_modules/pdfjs-dist/build/pdf.worker.mjs';
+PDFJS.GlobalWorkerOptions.workerSrc =
+  'node_modules/pdfjs-dist/build/pdf.worker.mjs'
 
 /**
  * Scale between the PDF page's natural size and rendered size
  * @constant {number}
  */
-const SCALE: number = 3;
+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
@@ -17,11 +18,11 @@ 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;
+const FONT_SIZE: number = 40
 /**
  * Current font type used when generating a PDF.
  */
-const FONT_TYPE: string = 'Arial';
+const FONT_TYPE: string = 'Arial'
 
 /**
  * Converts a PDF ArrayBuffer to a generic PDF File
@@ -29,8 +30,8 @@ const FONT_TYPE: string = 'Arial';
  * @param fileName identifier of the pdf file
  */
 const toFile = (arrayBuffer: ArrayBuffer, fileName: string): File => {
-  const blob = new Blob([arrayBuffer], { type: "application/pdf" });
+  const blob = new Blob([arrayBuffer], { type: 'application/pdf' })
-  return new File([blob], fileName, { type: "application/pdf" });
+  return new File([blob], fileName, { type: 'application/pdf' })
 }
 
 /**
@@ -50,42 +51,40 @@ const toPdfFile = async (file: File): Promise<PdfFile> => {
  * @return PdfFile[] - an array of Sigit's internal Pdf File type
  */
 const toPdfFiles = async (selectedFiles: File[]): Promise<PdfFile[]> => {
-  return Promise.all(selectedFiles
+  return Promise.all(selectedFiles.filter(isPdf).map(toPdfFile))
-    .filter(isPdf)
-    .map(toPdfFile));
 }
 
 /**
  * A utility that transforms a drawing coordinate number into a CSS-compatible string
  * @param coordinate
  */
-const inPx = (coordinate: number): string => `${coordinate}px`;
+const inPx = (coordinate: number): string => `${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');
+const isPdf = (file: File) => file.type.toLowerCase().includes('pdf')
 
 /**
  * Reads the pdf file binaries
  */
 const readPdf = (file: File): Promise<string> => {
   return new Promise((resolve, reject) => {
-    const reader = new FileReader();
+    const reader = new FileReader()
 
     reader.onload = (e: any) => {
       const data = e.target.result
 
       resolve(data)
-    };
+    }
 
     reader.onerror = (err) => {
       console.error('err', err)
       reject(err)
-    };
+    }
 
-    reader.readAsDataURL(file);
+    reader.readAsDataURL(file)
   })
 }
 
@@ -94,26 +93,28 @@ const readPdf = (file: File): Promise<string> => {
  * @param data pdf file bytes
  */
 const pdfToImages = async (data: any): Promise<PdfPage[]> => {
-  const images: string[] = [];
+  const images: string[] = []
-  const pdf = await PDFJS.getDocument(data).promise;
+  const pdf = await PDFJS.getDocument(data).promise
-  const canvas = document.createElement("canvas");
+  const canvas = document.createElement('canvas')
 
   for (let i = 0; i < pdf.numPages; i++) {
-    const page = await pdf.getPage(i + 1);
+    const page = await pdf.getPage(i + 1)
-    const viewport = page.getViewport({ scale: SCALE });
+    const viewport = page.getViewport({ scale: SCALE })
-    const context = canvas.getContext("2d");
+    const context = canvas.getContext('2d')
-    canvas.height = viewport.height;
+    canvas.height = viewport.height
-    canvas.width = viewport.width;
+    canvas.width = viewport.width
-    await page.render({ canvasContext: context!, viewport: viewport }).promise;
+    await page.render({ canvasContext: context!, viewport: viewport }).promise
-    images.push(canvas.toDataURL());
+    images.push(canvas.toDataURL())
   }
 
-  return Promise.resolve(images.map((image) => {
+  return Promise.resolve(
+    images.map((image) => {
       return {
         image,
         drawnFields: []
       }
-  }))
+    })
+  )
 }
 
 /**
@@ -121,34 +122,37 @@ const pdfToImages = async (data: any): 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 (file: File, marksPerPage: {[key: string]: Mark[]}) => {
+const addMarks = async (
-  const p = await readPdf(file);
+  file: File,
-  const pdf = await PDFJS.getDocument(p).promise;
+  marksPerPage: { [key: string]: Mark[] }
-  const canvas = document.createElement("canvas");
+) => {
+  const p = await readPdf(file)
+  const pdf = await PDFJS.getDocument(p).promise
+  const canvas = document.createElement('canvas')
 
-  const images: string[] = [];
+  const images: string[] = []
 
   for (let i = 0; i < pdf.numPages; i++) {
     const page = await pdf.getPage(i + 1)
-    const viewport = page.getViewport({ scale: SCALE });
+    const viewport = page.getViewport({ scale: SCALE })
-    const context = canvas.getContext("2d");
+    const context = canvas.getContext('2d')
-    canvas.height = viewport.height;
+    canvas.height = viewport.height
-    canvas.width = viewport.width;
+    canvas.width = viewport.width
-    await page.render({ canvasContext: context!, viewport: viewport }).promise;
+    await page.render({ canvasContext: context!, viewport: viewport }).promise
 
-    marksPerPage[i].forEach(mark => draw(mark, context!))
+    marksPerPage[i].forEach((mark) => draw(mark, context!))
 
-    images.push(canvas.toDataURL());
+    images.push(canvas.toDataURL())
   }
 
-  return Promise.resolve(images);
+  return Promise.resolve(images)
 }
 
 /**
  * Utility to scale mark in line with the PDF-to-PNG scale
  */
 const scaleMark = (mark: Mark): Mark => {
-  const { location } = mark;
+  const { location } = mark
   return {
     ...mark,
     location: {
@@ -165,7 +169,7 @@ const scaleMark = (mark: Mark): Mark => {
  * Utility to check if a Mark has value
  * @param mark
  */
-const hasValue = (mark: Mark): boolean => !!mark.value;
+const hasValue = (mark: Mark): boolean => !!mark.value
 
 /**
  * Draws a Mark on a Canvas representation of a PDF Page
@@ -173,14 +177,14 @@ const hasValue = (mark: Mark): boolean => !!mark.value;
  * @param ctx a Canvas representation of a specific PDF Page
  */
 const draw = (mark: Mark, ctx: CanvasRenderingContext2D) => {
-  const { location } = mark;
+  const { location } = mark
 
-  ctx!.font = FONT_SIZE + 'px ' + FONT_TYPE;
+  ctx!.font = FONT_SIZE + 'px ' + FONT_TYPE
-  ctx!.fillStyle = 'black';
+  ctx!.fillStyle = 'black'
-  const textMetrics = ctx!.measureText(mark.value!);
+  const textMetrics = ctx!.measureText(mark.value!)
-  const textX = location.left + (location.width - textMetrics.width) / 2;
+  const textX = location.left + (location.width - textMetrics.width) / 2
-  const textY = location.top + (location.height + parseInt(ctx!.font)) / 2;
+  const textY = location.top + (location.height + parseInt(ctx!.font)) / 2
-  ctx!.fillText(mark.value!, textX, textY);
+  ctx!.fillText(mark.value!, textX, textY)
 }
 
 /**
@@ -188,7 +192,7 @@ const draw = (mark: Mark, ctx: CanvasRenderingContext2D) => {
  * @param markedPdfPages
  */
 const convertToPdfBlob = async (markedPdfPages: string[]): Promise<Blob> => {
-  const pdfDoc = await PDFDocument.create();
+  const pdfDoc = await PDFDocument.create()
 
   for (const page of markedPdfPages) {
     const pngImage = await pdfDoc.embedPng(page)
@@ -203,7 +207,6 @@ const convertToPdfBlob = async (markedPdfPages: string[]): Promise<Blob> => {
 
   const pdfBytes = await pdfDoc.save()
   return new Blob([pdfBytes], { type: 'application/pdf' })
-
 }
 
 /**
@@ -211,9 +214,12 @@ const convertToPdfBlob = async (markedPdfPages: string[]): Promise<Blob> => {
  * @param arrayBuffer
  * @param fileName
  */
-const convertToPdfFile = async (arrayBuffer: ArrayBuffer, fileName: string): Promise<PdfFile> => {
+const convertToPdfFile = async (
-  const file = toFile(arrayBuffer, fileName);
+  arrayBuffer: ArrayBuffer,
-  return toPdfFile(file);
+  fileName: string
+): Promise<PdfFile> => {
+  const file = toFile(arrayBuffer, fileName)
+  return toPdfFile(file)
 }
 
 /**
@@ -238,10 +244,9 @@ const groupMarksByPage = (marks: Mark[]) => {
  * @param mark - current value, i.e. Mark being examined
  */
 const byPage = (obj: { [key: number]: Mark[] }, mark: Mark) => {
-  const key = mark.location.page;
+  const key = mark.location.page
-  const curGroup = obj[key] ?? [];
+  const curGroup = obj[key] ?? []
-  return { ...obj, [key]: [...curGroup, mark]
+  return { ...obj, [key]: [...curGroup, mark] }
-  }
 }
 
 export {
@@ -252,5 +257,5 @@ export {
   convertToPdfFile,
   addMarks,
   convertToPdfBlob,
-  groupMarksByPage,
+  groupMarksByPage
 }

src/utils/sign.ts

@@ -5,7 +5,10 @@ import { Meta } from '../types'
  * This function returns the signature of last signer
  * It will be used in the content of export signature's signedEvent
  */
-const getLastSignersSig = (meta: Meta, signers: `npub1${string}`[]): string | null => {
+const getLastSignersSig = (
+  meta: Meta,
+  signers: `npub1${string}`[]
+): string | null => {
   // if there're no signers then use creator's signature
   if (signers.length === 0) {
     try {
@@ -21,9 +24,7 @@ const getLastSignersSig = (meta: Meta, signers: `npub1${string}`[]): string | nu
 
   // get the signature of last signer
   try {
-    const lastSignatureEvent: Event = JSON.parse(
+    const lastSignatureEvent: Event = JSON.parse(meta.docSignatures[lastSigner])
-      meta.docSignatures[lastSigner]
-    )
     return lastSignatureEvent.sig
   } catch (error) {
     return null

src/utils/zip.ts

@@ -36,17 +36,12 @@ const readContentOfZipEntry = async <T extends OutputType>(
 
 const loadZip = async (data: InputFileFormat): Promise<JSZip | null> => {
   try {
-    return await JSZip.loadAsync(data);
+    return await JSZip.loadAsync(data)
   } catch (err: any) {
     console.log('err in loading zip file :>> ', err)
     toast.error(err.message || 'An error occurred in loading zip file.')
-    return null;
+    return null
   }
 }
 
-export {
+export { readContentOfZipEntry, loadZip }
-  readContentOfZipEntry,
-  loadZip
-}
-
-