src/components/DrawPDFFields/index.tsx

@@ -488,9 +488,7 @@ export const DrawPDFFields = (props: Props) => {
               {pdfFile ? (
                 getPdfPages(pdfFile, i)
               ) : (
-                <div className={styles.otherFile}>
-                  This is a {extension} file
-                </div>
+                <div className={'otherFile'}>This is a {extension} file</div>
               )}
             </div>
             {i < selectedFiles.length - 1 && (

src/components/DrawPDFFields/style.module.scss

@@ -104,15 +104,3 @@
   flex-direction: column;
   gap: 25px;
 }
-
-.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;
-}

src/components/PDFView/PdfItem.tsx

@@ -1,12 +1,13 @@
 import { PdfFile } from '../../types/drawing.ts'
 import { CurrentUserMark, Mark } from '../../types/mark.ts'
+import { extractFileExtension } from '../../utils/meta.ts'
 import PdfPageItem from './PdfPageItem.tsx'
 
 interface PdfItemProps {
   currentUserMarks: CurrentUserMark[]
   handleMarkClick: (id: number) => void
   otherUserMarks: Mark[]
-  pdfFile: PdfFile
+  pdfFile: PdfFile | File
   selectedMark: CurrentUserMark | null
   selectedMarkValue: string
 }
@@ -31,6 +32,7 @@ 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) => {
       return (
         <PdfPageItem
@@ -44,6 +46,10 @@ const PdfItem = ({
         />
       )
     })
+  } else {
+    const extension = extractFileExtension(pdfFile.name)
+    return <div className={'otherFile'}>This is a {extension} file</div>
+  }
 }
 
 export default PdfItem

src/components/PDFView/index.tsx

@@ -51,11 +51,12 @@ const PdfView = ({
   return (
     <>
       {files.map((currentUserFile, index, arr) => {
-        const { hash, pdfFile, id } = currentUserFile
+        const { hash, pdfFile, id, filename } = currentUserFile
+
         if (!hash) return
         return (
           <div
-            id={pdfFile.file.name}
+            id={filename}
             ref={(el) => (pdfRefs.current[id] = el)}
             key={index}
           >

src/index.css

@@ -165,3 +165,15 @@ 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;
+}

src/pages/sign/index.tsx

@@ -33,13 +33,14 @@ import {
   sendNotification,
   signEventForMetaFile,
   updateUsersAppData,
-  findOtherUserMarks
+  findOtherUserMarks,
+  extractFileExtension
 } 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 } from '../../utils/pdf.ts'
+import { convertToPdfFile, toFile } from '../../utils/pdf.ts'
 import { CurrentUserMark, Mark } from '../../types/mark.ts'
 import { getLastSignersSig } from '../../utils/sign.ts'
 import {
@@ -76,7 +77,7 @@ export const SignPage = () => {
 
   const [selectedFile, setSelectedFile] = useState<File | null>(null)
 
-  const [files, setFiles] = useState<{ [filename: string]: PdfFile }>({})
+  const [files, setFiles] = useState<{ [filename: string]: PdfFile | File }>({})
 
   const [isLoading, setIsLoading] = useState(true)
   const [loadingSpinnerDesc, setLoadingSpinnerDesc] = useState('')
@@ -402,7 +403,7 @@ export const SignPage = () => {
       return
     }
 
-    const files: { [filename: string]: PdfFile } = {}
+    const files: { [filename: string]: PdfFile | File } = {}
     const fileHashes: { [key: string]: string | null } = {}
     const fileNames = Object.values(zip.files).map((entry) => entry.name)
 
@@ -419,7 +420,11 @@ export const SignPage = () => {
         try {
           files[fileName] = await convertToPdfFile(arrayBuffer, fileName)
         } catch (error) {
-          console.error('Not a .pdf file:', error)
+          files[fileName] = toFile(
+            arrayBuffer,
+            fileName,
+            'application/' + extractFileExtension(fileName)
+          )
         }
         const hash = await getHash(arrayBuffer)
         if (hash) {
@@ -767,8 +772,12 @@ export const SignPage = () => {
 
     zip.file('meta.json', stringifiedMeta)
 
-    for (const [fileName, pdf] of Object.entries(files)) {
-      zip.file(`files/${fileName}`, await pdf.file.arrayBuffer())
+    for (const [fileName, file] of Object.entries(files)) {
+      if ('pages' in file) {
+        zip.file(`files/${fileName}`, await file.file.arrayBuffer())
+      } else {
+        zip.file(`files/${fileName}`, await file.arrayBuffer())
+      }
     }
 
     const arrayBuffer = await zip
@@ -805,8 +814,12 @@ export const SignPage = () => {
 
     zip.file('meta.json', stringifiedMeta)
 
-    for (const [fileName, pdf] of Object.entries(files)) {
-      zip.file(`files/${fileName}`, await pdf.file.arrayBuffer())
+    for (const [fileName, file] of Object.entries(files)) {
+      if ('pages' in file) {
+        zip.file(`files/${fileName}`, await file.file.arrayBuffer())
+      } else {
+        zip.file(`files/${fileName}`, await file.arrayBuffer())
+      }
     }
 
     const arrayBuffer = await zip

src/pages/sign/internal/displayMeta.tsx

@@ -38,7 +38,7 @@ import { PdfFile } from '../../../types/drawing.ts'
 
 type DisplayMetaProps = {
   meta: Meta
-  files: { [filename: string]: PdfFile }
+  files: { [filename: string]: PdfFile | File }
   submittedBy: string
   signers: `npub1${string}`[]
   viewers: `npub1${string}`[]
@@ -144,7 +144,14 @@ export const DisplayMeta = ({
   }, [users, submittedBy, metadata])
 
   const downloadFile = async (filename: string) => {
-    const arrayBuffer = await files[filename].file.arrayBuffer()
+    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])

src/pages/verify/index.tsx

@@ -21,7 +21,8 @@ import {
   readContentOfZipEntry,
   signEventForMetaFile,
   shorten,
-  getCurrentUserFiles
+  getCurrentUserFiles,
+  extractFileExtension
 } from '../../utils'
 import styles from './style.module.scss'
 import { useLocation } from 'react-router-dom'
@@ -32,7 +33,8 @@ import {
   convertToPdfBlob,
   convertToPdfFile,
   groupMarksByFileNamePage,
-  inPx
+  inPx,
+  toFile
 } from '../../utils/pdf.ts'
 import { State } from '../../store/rootReducer.ts'
 import { useSelector } from 'react-redux'
@@ -85,7 +87,8 @@ const SlimPdfView = ({
               ref={(el) => (pdfRefs.current[id] = el)}
               className={styles.fileWrapper}
             >
-              {pdfFile.pages.map((page, i) => {
+              {'pages' in pdfFile ? (
+                pdfFile.pages.map((page, i) => {
                   const marks: Mark[] = []
 
                   signatureEvents.forEach((e) => {
@@ -119,7 +122,12 @@ const SlimPdfView = ({
                       })}
                     </div>
                   )
-              })}
+                })
+              ) : (
+                <div className={'otherFile'}>
+                  This is a {extractFileExtension(pdfFile.name)} file
+                </div>
+              )}
             </div>
 
             {i < files.length - 1 && (
@@ -171,7 +179,7 @@ export const VerifyPage = () => {
   const [currentFileHashes, setCurrentFileHashes] = useState<{
     [key: string]: string | null
   }>({})
-  const [files, setFiles] = useState<{ [filename: string]: PdfFile }>({})
+  const [files, setFiles] = useState<{ [filename: string]: PdfFile | File }>({})
   const [currentFile, setCurrentFile] = useState<CurrentUserFile | null>(null)
   const [signatureFileHashes, setSignatureFileHashes] = useState<{
     [key: string]: string
@@ -230,7 +238,7 @@ export const VerifyPage = () => {
 
               if (!zip) return
 
-              const files: { [filename: string]: PdfFile } = {}
+              const files: { [filename: string]: PdfFile | File } = {}
               const fileHashes: { [key: string]: string | null } = {}
               const fileNames = Object.values(zip.files).map(
                 (entry) => entry.name
@@ -252,7 +260,11 @@ export const VerifyPage = () => {
                       fileName!
                     )
                   } catch (error) {
-                    console.error('Not a .pdf file:', error)
+                    files[fileName] = toFile(
+                      arrayBuffer,
+                      fileName,
+                      'application/' + extractFileExtension(fileName)
+                    )
                   }
                   const hash = await getHash(arrayBuffer)
 
@@ -428,8 +440,13 @@ export const VerifyPage = () => {
     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])
-      const blob = await convertToPdfBlob(pages)
+        blob = await convertToPdfBlob(pages)
+      } else {
+        blob = new Blob([pdf], { type: pdf.type })
+      }
       zip.file(`files/${fileName}`, blob)
     }
 

src/types/file.ts

@@ -2,7 +2,7 @@ import { PdfFile } from './drawing.ts'
 
 export interface CurrentUserFile {
   id: number
-  pdfFile: PdfFile
+  pdfFile: PdfFile | File
   filename: string
   hash?: string
   isHashValid: boolean

src/utils/file.ts

@@ -6,15 +6,23 @@ import { PdfFile } from '../types/drawing.ts'
 
 const getZipWithFiles = async (
   meta: Meta,
-  files: { [filename: string]: PdfFile }
+  files: { [filename: string]: PdfFile | File }
 ): Promise<JSZip> => {
   const zip = new JSZip()
   const marks = extractMarksFromSignedMeta(meta)
   const marksByFileNamePage = groupMarksByFileNamePage(marks)
 
-  for (const [fileName, pdf] of Object.entries(files)) {
-    const pages = await addMarks(pdf.file, marksByFileNamePage[fileName])
-    const blob = await convertToPdfBlob(pages)
+  for (const [fileName, file] of Object.entries(files)) {
+    let blob: Blob
+    if ('pages' in file) {
+      // Handle PDF Files
+      const pages = await addMarks(file.file, marksByFileNamePage[fileName])
+      blob = await convertToPdfBlob(pages)
+    } else {
+      // Handle other files
+      blob = new Blob([file], { type: file.type })
+    }
+
     zip.file(`files/${fileName}`, blob)
   }
 

src/utils/pdf.ts

@@ -30,10 +30,15 @@ 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): File => {
-  const blob = new Blob([arrayBuffer], { type: 'application/pdf' })
-  return new File([blob], fileName, { type: 'application/pdf' })
+const toFile = (
+  arrayBuffer: ArrayBuffer,
+  fileName: string,
+  type: string = 'application/pdf'
+): File => {
+  const blob = new Blob([arrayBuffer], { type })
+  return new File([blob], fileName, { type })
 }
 
 /**

src/utils/utils.ts

@@ -75,7 +75,7 @@ export const timeout = (ms: number = 60000) => {
  * @param creatorFileHashes
  */
 export const getCurrentUserFiles = (
-  files: { [filename: string]: PdfFile },
+  files: { [filename: string]: PdfFile | File },
   fileHashes: { [key: string]: string | null },
   creatorFileHashes: { [key: string]: string }
 ): CurrentUserFile[] => {