1473809 - Some PDFs are displayed without text

Status: RESOLVED FIXED

(Firefox :: PDF Viewer, defect)

Description

[Gregory]

Attachment: FirefoxNoText.pdf

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36

Steps to reproduce:

Some PDF files are displayed in Firefox without text. For example, table borders are shown, but no text in cells. Seems like some specific symbols with specific positioning and formatting cause this issue. To reproduce simply open attached PDF file in Firefox.


Actual results:

Blank page.


Expected results:

In other browsers and PDF viewers (Foxit Reader, Adobe Acrobat) the file is displayed normally.

Comment 1

[Gregory]

There's also a message shown on top of the page when this issue occurs: "This PDF document may display incorrectly".

Comment 2

[Gingerbread Man]

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0
20180705220111

(In reply to Gregory from comment #1)
> There's also a message shown on top of the page when this issue occurs:
> "This PDF document may display incorrectly".

Given the warning, this might be a known issue, as far as the underlying technical issue is concerned. I couldn't find any duplicates. Disabling hardware acceleration makes no difference, so this isn't bug 1010243.