864712 - Font alignment problem in PDF viewer

Status: RESOLVED WORKSFORME

(Firefox :: PDF Viewer, defect, P3)

Description

[michael]

User Agent: Mozilla/5.0 (X11; Linux i686; rv:20.0) Gecko/20100101 Firefox/20.0
Build ID: 20130326150557

Steps to reproduce:

I opened the following PDF file using the built-in viewer:

http://www.csee.usf.edu/~labrador/Share/workshops/papers/p291-benton.pdf


Actual results:

The vertical alignment of the characters is wrong, as shown in the first screenshot: they seem to hang from the line above rather than sitting on the line below.

http://i.imgur.com/IsYjubr.png


Expected results:

The characters should have been aligned as shown in the second screenshot, which comes from Evince.

http://i.imgur.com/8JOFnpI.png

Comment 1

[michael]

Another PDF that triggers the same bug:

http://conferences.sigcomm.org/sigcomm/2012/paper/sigcomm/p83.pdf

Comment 2

[Mihaela Velimiroviciu (:mihaelav)]

Mozilla/5.0 (X11; Linux i686; rv:20.0) Gecko/20100101 Firefox/20.0 - release
Mozilla/5.0 (X11; Linux i686; rv:21.0) Gecko/20100101 Firefox/21.0, 21beta5, build ID 20130425162858
Mozilla/5.0 (X11; Linux i686; rv:22.0) Gecko/20130425 Firefox/22.0, build ID 20130425004014 - latest Aurora
Mozilla/5.0 (X11; Linux i686; rv:23.0) Gecko/20130425 Firefox/23.0, build ID 20130425030845 - latest Nightly

WFM with the latest builds across all branches.

Michael, can you please try in safe mode (https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode) and with a new profile (https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles) and see if it still reproduces on your side?
Thanks!

Comment 3

[michael]

Thanks for looking into this! I can reproduce the bug in safe mode and with a fresh profile. My user agent is Mozilla/5.0 (X11; Linux i686; rv:20.0) Gecko/20100101 Firefox/20.0. I'm running Debian Squeeze, but using the latest Firefox, not the one included with Squeeze. Could it be related to the fonts I do/don't have installed?

Comment 4

[blaffablaffa]

I can confirm this on "Mozilla/5.0 (X11; Linux x86_64; rv:20.0) Gecko/20100101 Firefox/20.0".

I remember that the first release of Firefox that supported pdf natively actually seemed to work.

Comment 5

[Petruta Horea [:phorea], Desktop Test Engineering]

I wasn't able to reproduce the issue on Firefox 20.0.1, Linux 64-bit.

Do you still have this issue on latest Firefox release, Fx 24?
How about latest Nightly? http://nightly.mozilla.org/

Thank you.

Comment 6

[michael]

I can confirm that the issue is fixed in Firefox 24. Thank you!

Comment 7

[Petruta Horea [:phorea], Desktop Test Engineering]

Thanks for your answer. I'll mark it as RWFM.