structuredClone is not defined

[planetsLightningArrester]

Attach (recommended) or Link to PDF file here:

Configuration:

• Web browser and its version:
  Actually using Node.JS 16.13.0
• Operating system and its version:
  Windows 10 64 bits
• PDF.js version:
  2.13.216
• Is a browser extension:
  No

Steps to reproduce the problem:

1. Load a PDF using the code below:

const PDFJS = require('pdfjs-dist');
PDFJS.getDocument({url: "doc.pdf", password: "123"})

2. Run the code using node

What is the expected behavior? (add screenshot)
No error should be reported

What went wrong? (add screenshot)
An error is reported

node_modules/pdfjs-dist/build/pdf.js:2180
      data: structuredClone(obj, transfers)
            ^

ReferenceError: structuredClone is not defined

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):

Notes:
I was using PDF version 2.7.570 and I didn't have this issue. I saw that the polyfill for structuredClone was removed recently. I'd like to know if there's any workaround for my case. For now, I'm just downgrading the version that I use. Thank you!

[Snuffleupagus]

When using the PDF.js library in Node.js you must use a legacy-build, since otherwise many things (and not just structuredClose) simply won't work unfortunately.
Hence changing your import to instead use pdfjs-dist/legacy/build/pdf.js ought to work, note also the examples in https://github.com/mozilla/pdf.js/tree/master/examples/node

For now, I'm just downgrading the version that I use.

Note that that's never recommended, since anything except the latest version is explicitly unsupported.

[mmahalwy]

@Snuffleupagus thoughts on when this would work on non-legacy version?

[planetsLightningArrester]

Just FYI, structuredClone() is supported from Node 17 onwards.
I also had issues running tests with Jest, although Node was >17, so I had to update Jest too.

I'm using the following versions and now everything is working perfectly.

Node: 18.9.0
jest: 29.0.3
pdfjs-dist: 2.16.105

import { getDocument, PDFDocumentProxy } from 'pdfjs-dist';

...

let pdf: PDFDocumentProxy | undefined = await getDocument({url: noteFullPath, password: pass}).promise;

[michelem09]

Just FYI, structuredClone() is supported from Node 17 onwards. I also had issues running tests with Jest, although Node was >17, so I had to update Jest too.

I'm using the following versions and now everything is working perfectly.

Node: 18.9.0 jest: 29.0.3 pdfjs-dist: 2.16.105

import { getDocument, PDFDocumentProxy } from 'pdfjs-dist';

...

let pdf: PDFDocumentProxy | undefined = await getDocument({url: noteFullPath, password: pass}).promise;

Importing it from legacy as suggested by @Snuffleupagus works:

import pdfjsLib from 'pdfjs-dist/legacy/build/pdf.js';

[philip-hub]

When using the PDF.js library in Node.js you must use a legacy-build, since otherwise many things (and not just structuredClose) simply won't work unfortunately. Hence changing your import to instead use pdfjs-dist/legacy/build/pdf.js ought to work, note also the examples in https://github.com/mozilla/pdf.js/tree/master/examples/node

For now, I'm just downgrading the version that I use.

Note that that's never recommended, since anything except the latest version is explicitly unsupported.

Hello I am unable to find the legacy version. Is it still available?

[doczoidberg]

import pdfjsLib from 'pdfjs-dist/legacy/build/pdf.js';

needs canvas which I don't have in node.js 16?