Bug 78042 - Bad PDF rendering: invalid font scale
Summary: Bad PDF rendering: invalid font scale
Status: RESOLVED FIXED
Alias: None
Product: poppler
Classification: Unclassified
Component: cairo backend (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: poppler-bugs
QA Contact:
URL:
Whiteboard:
Keywords:
: 83155 (view as bug list)
Depends on:
Blocks:
 
Reported: 2014-04-28 18:22 UTC by Davide Capodaglio
Modified: 2015-10-13 15:13 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
easyjet boarding pass not rendered correctly (222.96 KB, text/plain)
2014-04-28 18:22 UTC, Davide Capodaglio 		Details
cairo: don't render text when matrix is not invertable (2.50 KB, patch)
2014-10-07 11:03 UTC, Adrian Johnson 		Details | Splinter Review
View All

Description Davide Capodaglio 2014-04-28 18:22:15 UTC 
Created attachment 98133 [details]
easyjet boarding pass not rendered correctly

Hello, the attached PDF (easyjet boarding pass) is not correctly rendered under poppler (evince).
I am using Ubuntu 14.04 amd64, so evince 3.10.3 and poppler 0.24.5.

Evince prints a lot of messages like:
Syntax Warning: font matrix not invertible<0a>

while ghostscript renders the PDF correctly, but prints lots of:
   **** Warning: Invalid 0.0 font scale given for Tf ****
   **** Warning: /BBox has zero width or height, which is not allowed.

so I suspect the PDF is defective, but poppler should be made more "fault tolerant" as ghostscript does.
Otherwise, no boarding pass print anymore :-(

I can fix the PDF with
gs -q -dNOPAUSE -dBATCH -dSAFER -sDEVICE=pdfwrite -sOutputFile=out.pdf in.pdf
Comment 1 Albert Astals Cid 2014-04-28 18:32:26 UTC 
Looks good in okular so it must be a cairo backend bug.
Comment 2 Davide Capodaglio 2014-04-28 19:38:55 UTC 
(In reply to comment #1)
> Looks good in okular so it must be a cairo backend bug.

Yeah also for me in okular is ok. And no log messages on stdout at all.
Comment 3 Martin McDowell 2014-09-21 11:04:10 UTC 
I am seeing the same problem using the Document Viewer 3.10.3 on Ubuntu 14.04 64-bit
Comment 4 Adrian Johnson 2014-10-07 11:03:20 UTC 
Created attachment 107478 [details] [review]
cairo: don't render text when matrix is not invertable
Comment 5 Carlos Garcia Campos 2014-10-07 16:04:29 UTC 
Comment on attachment 107478 [details] [review]
cairo: don't render text when matrix is not invertable

Review of attachment 107478 [details] [review]:
-----------------------------------------------------------------

LGTM, thanks!
Comment 6 Adrian Johnson 2014-10-07 20:17:20 UTC 
Pushed.
Comment 7 Neil Roberts 2014-10-14 15:40:46 UTC 
*** Bug 83155 has been marked as a duplicate of this bug. ***
Comment 8 Martin McDowell 2015-10-11 14:51:08 UTC 
It has been a year since a last post of this bug but I am still getting this problem in October 2015. I have Ubuntu 14.04. The PDF is viewed in the default Evince document viewer 3.10.3
Comment 9 Adrian Johnson 2015-10-11 21:25:17 UTC 
(In reply to Martin McDowell from comment #8)
> It has been a year since a last post of this bug but I am still getting this
> problem in October 2015. I have Ubuntu 14.04. The PDF is viewed in the
> default Evince document viewer 3.10.3

The fix is in poppler 0.28 released in Nov 2014.
Comment 10 Sebastien Bacher 2015-10-13 15:13:30 UTC 
I'm doing a SRU to 14.04 for that change

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