[Feature]: Make pdf.js work from React Native

[mikelehen]

Is the feature relevant to the Firefox PDF Viewer?

No

Feature description

[I'm Guessing this isn't a supported platform, but I'm logging an issue for posterity and for other people to find, etc.]

I can't seem to get pdf.js to work from an iOS React Native app. I tried both the modern build and the legacy build. With either one I get an error while bundling like:

error: node_modules/pdfjs-dist/legacy/build/pdf.mjs: node_modules/pdfjs-dist/legacy/build/pdf.mjs:Invalid call at line 16572: import( /*webpackIgnore: true*/_this46.workerSrc)

I think React Native has to resolve all dynamic imports at compile time, so you can't import from a variable. So I tried manually modifying node_modules/pdfjs-dist/legacy/build/pdf.mjs and hardcoding it to import('./pdf.worker.mjs'), but it still doesn't work. For some reason the bundler hangs at 99.7%:

 BUNDLE  src/index.native.tsx ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░ 99.7% (5464/5473)

I am not sure why or how to debug further. 🤷 Any tips / suggestions welcome.

Other PDF viewers

No response

[DivyatejaChe]

HI @mikelehen I tried integrating pdf.js with a React Native App, got it working on Android but not on iOS. I leveraged legacy version of pdf.js (2.x.x) as it exports commonJS modules.

Did you progress further on this issue?