Convert PDF to Word in JavaScript

readme.md

Read the complete article on how to convert PDF files to Word DOC/DOCX in JavaScript: https://blog.aspose.com/pdf/convert-pdf-to-word-javascript/

pdf-to-word-doc-webworker.js

/*Create Web Worker*/
const AsposePDFWebWorker = new Worker("AsposePDFforJS.js");
AsposePDFWebWorker.onerror = evt => console.log(`Error from Web Worker: ${evt.message}`);
AsposePDFWebWorker.onmessage = evt => document.getElementById('output').textContent = 
  (evt.data == 'ready') ? 'loaded!' :
    (evt.data.json.errorCode == 0) ? `Result:\n${DownloadFile(evt.data.json.fileNameResult, "application/msword", evt.data.params[0])}` : `Error: ${evt.data.json.errorText}`;

/*Event handler*/
const ffileToDoc = e => {
  const file_reader = new FileReader();
  file_reader.onload = event => {
    /*Convert a PDF-file to Doc and save the "ResultPDFtoDoc.doc" - Ask Web Worker*/
    AsposePDFWebWorker.postMessage({ "operation": 'AsposePdfToDoc', "params": [event.target.result, e.target.files[0].name, "ResultPDFtoDoc.doc"] }, [event.target.result]);
  };
  file_reader.readAsArrayBuffer(e.target.files[0]);
};

/*Make a link to download the result file*/
const DownloadFile = (filename, mime, content) => {
    mime = mime || "application/octet-stream";
    var link = document.createElement("a"); 
    link.href = URL.createObjectURL(new Blob([content], {type: mime}));
    link.download = filename;
    link.innerHTML = "Click here to download the file " + filename;
    document.body.appendChild(link); 
    document.body.appendChild(document.createElement("br"));
    return filename;
  }

pdf-to-word-doc.js

var ffileToDoc = function (e) {
  const file_reader = new FileReader();
  file_reader.onload = (event) => {
    /*Convert a PDF-file to Doc and save the "ResultPDFtoDoc.doc"*/
    const json = AsposePdfToDoc(event.target.result, e.target.files[0].name, "ResultPDFtoDoc.doc");
    if (json.errorCode == 0) document.getElementById('output').textContent = json.fileNameResult;
    else document.getElementById('output').textContent = json.errorText;
    /*Make a link to download the result file*/
    DownloadFile(json.fileNameResult, "application/msword");
  }
  file_reader.readAsArrayBuffer(e.target.files[0]);
}

pdf-to-word-docx-webworker.js

/*Create Web Worker*/
const AsposePDFWebWorker = new Worker("AsposePDFforJS.js");
AsposePDFWebWorker.onerror = evt => console.log(`Error from Web Worker: ${evt.message}`);
AsposePDFWebWorker.onmessage = evt => document.getElementById('output').textContent = 
  (evt.data == 'ready') ? 'loaded!' :
    (evt.data.json.errorCode == 0) ? `Result:\n${DownloadFile(evt.data.json.fileNameResult, "application/vnd.openxmlformats-officedocument.wordprocessingml.document", evt.data.params[0])}` : `Error: ${evt.data.json.errorText}`;

/*Event handler*/
const ffileToDocX = e => {
  const file_reader = new FileReader();
  file_reader.onload = event => {
    /*convert a PDF-file to DocX and save the "ResultPDFtoDocX.docx" - Ask Web Worker*/
    AsposePDFWebWorker.postMessage({ "operation": 'AsposePdfToDocX', "params": [event.target.result, e.target.files[0].name, "ResultPDFtoDocX.docx"] }, [event.target.result]);
  };
  file_reader.readAsArrayBuffer(e.target.files[0]);
};
/// [Code snippet]

/*make a link to download the result file*/
const DownloadFile = (filename, mime, content) => {
    mime = mime || "application/octet-stream";
    var link = document.createElement("a"); 
    link.href = URL.createObjectURL(new Blob([content], {type: mime}));
    link.download = filename;
    link.innerHTML = "Click here to download the file " + filename;
    document.body.appendChild(link); 
    document.body.appendChild(document.createElement("br"));
    return filename;
  }

pdf-to-word-docx.js

var ffileToDocX = function (e) {
  const file_reader = new FileReader();
  file_reader.onload = (event) => {
    /*convert a PDF-file to DocX and save the "ResultPDFtoDocX.docx"*/
    const json = AsposePdfToDocX(event.target.result, e.target.files[0].name, "ResultPDFtoDocX.docx");
    if (json.errorCode == 0) document.getElementById('output').textContent = json.fileNameResult;
    else document.getElementById('output').textContent = json.errorText;
    /*make a link to download the result file*/
    DownloadFile(json.fileNameResult, "application/vnd.openxmlformats-officedocument.wordprocessingml.document");
  }
  file_reader.readAsArrayBuffer(e.target.files[0]);
}

it does not copy with the format?