'/Filter [ /ASCII85Decode /FlateDecode ]' cannot be extracted as text

[morrislaw715]

I would like to extract pdf to text.
May I know who have experience to decode such thing?

I'm not sure is it related with ascii85.

import { useState } from 'react';
import { Document, Page, pdfjs } from 'react-pdf';

pdfjs.GlobalWorkerOptions.workerSrc = `//cdnjs.cloudflare.com/ajax/libs/pdf.js/${pdfjs.version}/pdf.worker.js`;

export default function PDF(){
  const [pdfText, setPdfText] = useState('')
  const onDocumentLoadSuccess = ({ numPages }) => {
      setNumPages(numPages)
  }
  const handleLoadPDF = async (file) => {
          const reader = new FileReader();
          reader.onloadend = async () => {
              try {
                  const loadingTask = pdfjs.getDocument(
                      new Uint8Array(reader.result)
                      // reader.result
                  );
                  const pdf = await loadingTask.promise;
                  const totalPages = pdf.numPages;
                  let extractedText = '';
                  for (let pageNumber = 1; pageNumber <= totalPages; pageNumber++) {
                      const page = await pdf.getPage(pageNumber);
                      const content = await page.getTextContent();
                      const pageText = content.items.map((item) => {
                          const encodedText = item.str
                          const decodedText = encodedText
                          // const decodedText = decodeAscii85(encodedText)
                          return decodedText;
                      }).join(' ');
                      extractedText += pageText + '\r\n';
                  }
                  setPdfText(extractedText)
              } catch (err) {
                  alert(err)
              }
          }
          reader.readAsArrayBuffer(file);
      }
  }
return(
<>
 <input type="file" accept=".pdf" onChange={handleFileChange} />
 <Input as='textarea' defaultValue={pdfText} rows={20} />
</>
)