Cannot open / view PDF in mobile browsers

[sunidy]

The current stable version 4.3.136 cannot open PDF in mobile brows.

I tested it under iOS and Android with Safari and Chrome.

The PDF 1 link on the page https://test2.bannersky.com/bsk-pdf-manager/ use the version 4.3.136, it CANNOT be open.

The PDF 1 link on the page https://wangjingtang.com/bsk-pdf-manager/ use the old version 4.0.379, it CAN be open.

Is there an issue or some settings need to be changed?

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Feb 13, 2025

Just tested the latest version 4.10.38, the issue still not been fixed.

version 4.10.38 cannot open the demo PDF: https://test1.bannersky.com/pdfjs-41038/web/viewer.html

version 4.0.379 can open the demo PDF https://test1.bannersky.com/pdfjs-40379/web/viewer.html

I tested Chrome and Safari on iOS.

[sunidy]

Has anyone tested this issue?

[machmalpause]

Yes, tested and confirmed on several devices running iOS 16.7.8

[sunidy]

This issue is still existing in the new version 4.4.168

[crli]

Hope to fix versions 4.267 and above

[roldeguz]

Any updates on this?

[sunidy]

Is anyone following up on this issue?

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Just tested the latest version 4.10.38, the issue still not been fixed.

version 4.10.38 cannot open the demo PDF: https://test1.bannersky.com/pdfjs-41038/web/viewer.html

version 4.0.379 can open the demo PDF https://test1.bannersky.com/pdfjs-40379/web/viewer.html

I tested Chrome and Safari on iOS.

[nicolo-ribaudo]

That first link works in Firefox and Chrome (on Android — because Chrome on iOS is actually Safari).

This seems like a Safari bug.

[sunidy]

But the second link works in Chrome and Safari on iOS.

Not sure what changed in PDF.js since version 4.9.379 that caused the problem.

[nicolo-ribaudo]

What version of Safari for iOS are you using? I just tested on my iPad and I can open both. It's possible that you might need to use the legacy build (https://github.com/mozilla/pdf.js/wiki/Frequently-Asked-Questions#legacy-build), which is transpiled to support browsers other than the latest Chrome & Firefox versions.