How convert word document to pdf in Nodejs

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I have method on Node js Return Word document , i want pass parameter called file type to convert this word document to PDF.

the output from buf var it file like below PK ! ߤ�l [Content_Types].xml<?xml version="1.0" encoding="UTF-8" standalone="yes"?>...

How can convert this word document to pdf ?

router.get("/hello", function(request, response, next,fileType) {

  var zip = new JSZip(
    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AAAAAANgVAAB3b3JkL2ZvbnRUYWJsZS54bWxQSwECLQAUAAYACAAAACEAW239kwkBAADxAQAAFAAAAAAAAAAAAAAAAABsGAAAd29yZC93ZWJTZXR0aW5ncy54bWxQSwECLQAUAAYACAAAACEAAR0f33EBAADHAgAAEAAAAAAAAAAAAAAAAACnGQAAZG9jUHJvcHMvYXBwLnhtbFBLAQItABQABgAIAAAAIQDWVAxaegEAAAMDAAARAAAAAAAAAAAAAAAAAE4cAABkb2NQcm9wcy9jb3JlLnhtbFBLAQItABQABgAIAAAAIQALRmoQGwsAAARwAAAPAAAAAAAAAAAAAAAAAP8eAAB3b3JkL3N0eWxlcy54bWxQSwUGAAAAAAsACwDBAgAARyoAAAAA",
    { base64: true }
  );
  var doc = new Docxtemplater();

  doc.loadZip(zip);
  //set the templateVariables
  doc.setData({});

  try {
    // render the document (replace all occurences of {first_name} by John, {last_name} by Doe, ...)
    doc.render();
    var buf = doc.getZip().generate({ type: "nodebuffer" });


    if(fileType=='docx'){
    response.writeHead(200, {
      "Content-Disposition": "attachment;filename=" + "template.docx",
      "Content-Type":
        "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
    });
    }else if(fileType=='pdf'){

        //here should convert 
    }

    response.end(buf);
  } catch (error) {
    var e = {
      message: error.message,
      name: error.name,
      stack: error.stack,
      properties: error.properties
    };
    console.log(JSON.stringify({ error: e }));
    // The error thrown here contains additional information when logged with JSON.stringify (it contains a property object).
    throw error;
  }
});

Existentialism answered 3/12, 2018 at 1:6 Comment(0)

H

7

You could use a package for this. Although the package I found, require the file to be read from disk it seems and not from buffer.

docx-pdf: npm i docx-pdf

const docxConverter = require('docx-pdf');

docxConverter('./input.docx','./output.pdf', (err, result) => {
  if (err) console.log(err);
  else console.log(result); // writes to file for us
});

Another option is to use an external API like https://github.com/Api2Pdf/api2pdf.node#readme (you could maybe even host it yourself, if you're handling sensitive data).

Huba answered 3/12, 2018 at 8:17 Comment(4)

A new option is npmjs.com/package/@nativedocuments/docx-wasm and it can read the docx from a buffer – Suprasegmental 13/3, 2019 at 3:34

Based on the source code, word2pdf uses a web service (convertonlinefree.com) for the conversion. This may not be acceptable for some use cases (i.e. sensitive data). So I just want to point it out. – Mannerheim 29/3, 2019 at 21:56

Also worth notting that docx-pdf is a mare wrapper that uses under the hood mammoth to convert docx to html and then html-pdf. mammoth does not keep the structure of the docx so you'll see somewhat simplified text structure eventually. – Splashdown 8/9, 2019 at 9:2

word2pdf was considered a malicious code by npm team and should be removed from your answer – Cassandra 10/12, 2021 at 8:50

L

3

Its pretty simple if you use libreoffice-convert library.

Code :

const libre = require('libreoffice-convert');

const fs = require('fs');

function convertToPdf(filePath) {

   const file = fs.readFileSync(filePath);
 
   libre.convert(file, extend, undefined, (err, done) => {
      if (err) {
        console.log(`Error converting file: ${err}`);
      }
 
      fs.writeFileSync('outputFile.pdf', done);
  });
}

You can find more documentation here.

Licensee answered 3/1, 2021 at 12:31 Comment(3)

Note: this package has a dependency on the LibreOffice software itself. – Cecilacecile 7/4, 2021 at 14:39

On windows libreoffice-convert and libreoffice-convert-win won´t work for many – Carmon 9/11, 2021 at 9:44

Also, this is very inefficient that only one file can be converted at one time. No concurrent conversions. – Penicillin 20/1, 2022 at 9:27

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