Update to pdfjs v5

[sakshamgoyal-01]

It's been a while since the pdfjs version has been updated. Can it be bumped so some of the warnings when loading pdfs are fixed?

[lfoppiano]

Hi @sakshamgoyal-01! Sure, why not? But since bumping pdf.js requires careful testing, at the moment we are not in the capacity to do that. If you feel like try we welcome new PRs and contributors 🚀

[zahhar]

Hi Team,
I just switched from Streamlit built-in st.pdf (streamlit-pdf) to this library only because yours is not yet updated to pdfjs5.

pdfjs5 has some compatibility issue with PDFs that include images compressed using JPEG2000 standard (see one attached). Such PDFs are just not rendered by st.pdf() in any Chromium-based browser, resulting in blank page. Console log shows:

pdf.worker.min.mjs:25
Warning: JpxImage#instantiateWasm: UnknownErrorException: Ensure that the `wasmUrl` API parameter is provided.
Warning: JpxImage#getJsModule: TypeError: Failed to resolve module specifier 'nullopenjpeg_nowasm_fallback.js'
Warning: Unable to decode image "img_p0_1": "JpxError: OpenJPEG failed to initialize".
Warning: Dependent image isn't ready yet

Probably it can be solved by parametrization PDF.js with proper wasmUrl, but please test it properly before upgrading: I bet many users still prefer your PDF viewer over built-in just because it works reliably.

Thank you for your work!

PDFJS-JPEG2000-WebAssembly-Problem.pdf

[lfoppiano]

Thanks @zahhar

BTW, If you also have some additional comparison feedback between this library and the st.pdf() (beside the fact their library is probably better integrated) I'd be interested to know.