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stephanrauh / ngx-extended-pdf-viewer

A full-blown PDF viewer for Angular 16, 17, and beyond
https://pdfviewer.net
Apache License 2.0
474 stars 182 forks source link

Some texts missing in pdf viewer, but not in native browser #275

Closed limcheepei closed 4 years ago

limcheepei commented 4 years ago

Refer to the attached PDF document, texts that are overlay (names, signature, date fields) are missing when viewing thru pdf viewer. However, when viewing thru Chrome (as native), the texts appear.

Version info

Desktop (please complete the following information):

Demo PDF file Many errors happen with specific PDF files only. So please add a PDF file (after checking the copyright of the PDF file first!)

sample.pdf

stephanrauh commented 4 years ago

I'm pretty sure that same happens on https://mozilla.github.io/pdf.js/es5/web/viewer.html. Please test your document there.

Mozilla's PDF viewer doesn't implement the entire set of annotations. I guess that's the problem you've run into.

As for the signature: you can activate [showUnverifiedSignatures]="true". But use it at your own risk. The signatures are displayed though they aren't verified. In other words: it's possible you might display a forged signature.

stephanrauh commented 4 years ago

I haven't heard from for for more than a week, so I suppose I can close the issue. As mentioned above, I believe the Mozilla team can solve the bug, not me.

rajatmittal commented 3 years ago

Some text missing while getting PDF file in ngx-extended-pdf-viewer, getting this issue in IE11. While some files are displaying fine.

stephanrauh commented 3 years ago

I've dropped IE11 support, at least officially. If you send me a broken PDF file, I'll happily start debugging. But I can't promise anything - debugging pdf.js in IE11 is a pain in the, well, you know where. BTW, it's a good idea to open a new issue because your issue seems to be IE11 specific.

robotestyukon commented 1 year ago

Hi, using ngx-extended pdf viewer(14.0.5) in angular application where the text in pdf is getting blurred or sometimes not rendering properly in chromium browsers(chrome,edge,etc) attached the screenshot and the pdf url https://moneyandme.pgimindiamf.com/api/v1/portal/pdf/PDF_2118943213 for reference. image

url to access : https://moneyandme.pgimindiamf.com/household-budget/articles/4-Steps-to-Financial-Wellbeing

Please provide solution for this.

stephanrauh commented 1 year ago

@robotestyukon Currently, I'm using your PDF as the default demo of my local copy of the showcase. I didn't see problems yet, but I'm observing it for a couple of days.

BTW, it's better to open a new ticket, otherwise I'll never find your comment again. Also, I believe this is a bug of the base viewer. Please check if the problem also occurs on https://mozilla.github.io/pdf.js/web/viewer.html. If so, please open a ticket at Mozilla's repository.