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Message #49079
[Bug 1379375] Re: evince does not display ligatures
Updating libpoppler46 to the version in utopic-proposed didn't solve the
problem for me. Do I have to restart something to see effects?
The attached file is still displayed incorrectly.
** Attachment added: "Test case on page 6 "definiert""
https://bugs.launchpad.net/ubuntu/+source/fontconfig/+bug/1379375/+attachment/4303092/+files/EC01.pdf
** Tags removed: verification-needed
** Tags added: verification-failed
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https://bugs.launchpad.net/bugs/1379375
Title:
evince does not display ligatures
Status in fontconfig package in Ubuntu:
Fix Released
Status in poppler package in Ubuntu:
Fix Released
Status in fontconfig source package in Trusty:
Won't Fix
Status in poppler source package in Trusty:
Fix Committed
Status in fontconfig source package in Utopic:
Won't Fix
Status in poppler source package in Utopic:
Fix Committed
Bug description:
[ Description ]
Some ligatures (e.g. "fi") are not displayed in certain fonts, because
there are two different naming schemes in use in the wild.
[ Fix ]
Poppler upstream fixed this by adding a lookup table to fall back to
the second scheme if necessary.
[ QA ]
1. Install tex-gyre
2. Download https://bugs.launchpad.net/ubuntu/+source/fontconfig/+bug/1317599/+attachment/4213588/+files/rfa1415_15sep_lect1.pdf
3. Open the file in evince
4. Look at "Biometrics: file" on page 3
If the "fi" ligature in "file" is not displayed, you have this bug.
"file" should be displayed normally after it's fixed.
[ Regression potential ]
Since this patch implements a fallback only when lookup false, there
shouldn't be any problems. Still, check all existing PDFs are still
displayed correctly.
[ Original report ]
While there's Bug #1325230 with the same title and the linked PDFs there are working fine here (displaying "fi" correctly) there seems to be still some bug regarding ligatures.
https://bugs.launchpad.net/ubuntu/+source/fontconfig/+bug/1325230
I have some PDFs substituting Helvetica (and others) with TeX Gyre
Heros and showing no "fi" ligature. I attached a patch I derived from
the patch in Bug #1325230 which is working fine. Now it uses Nimbus
Sans L and the ligatures are fine.
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References