Ng2-pdf-viewer: Allow to bundle the worker with the app not to need to download it

[kuba007]

Bug Report or Feature Request (mark with an x)

- [ ] Regression (a behavior that used to work and stopped working in a new release)
- [ ] Bug report -> please search issues before submitting
- [x] Feature request
- [x] Documentation issue or request

Based on some network issues, I have added pdfjs-dist to my package.json. Then I found I can set custom path to the worker... Can I use the bundled pdfjs-dist instead of downloading one?

Thank you for reply!

[VadimDez]

@kuba007 you can set custom path to the worker like this: https://github.com/VadimDez/ng2-pdf-viewer#set-custom-path-to-the-worker
And regarding bundled pdfjs-dist - i'm not using it only because it causes problems with webpack right now...

[BeatriceThalo]

This solved it for me.

dependencies:
    "@angular/core": "^6.0.0",
    "ng2-pdf-viewer": "^5.0.1",
resolutions:
    "pdfjs-dist": "2.0.489",
    "@types/pdfjs-dist": "^0.1.2"

I'm making a mobile app that can view pdfs offline using the <pdf-viewer> element. I needed to customize the worker path due to cloudflare not being listed in our <meta> content security policy or available offline, but did need to add the following, http: for localhost development, file: for cordova android/ios and electron mac/win/linux.

worker-src http: file:;

Similar to ng2-pdf-viewer itself, my app is also using webpack.
In the client before the component containing the <pdf-viewer> element is constructed:

declare let window: any;
window.pdfWorkerSrc = require('pdfjs-dist/webpack');

I no longer get the error Warning: Setting up fake worker. pdf.js 351 and my own animated loading spinner on the page no longer noticeably freezes/is choppy during the pdf's rendering, indicating that pdf rendering is no longer processing on the UI-thread, but instead on the worker-thread.

I found this solution for webpack users of pdfjs-dist in issue 7612, here.

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