Incorrect importing of ligatures from PDF files (certain fonts)

[Alex Valavanis]

Forwarded from Debian:

From: Eric Marsden <email address hidden>
To: <email address hidden>
Subject: incorrect importing of ligatures from PDF files (certain fonts)
Date: Tue, 22 May 2012 08:59:57 +0200
[Message part 1 (text/plain, inline)]
Package: inkscape
Version: 0.48.3.1-1+b1

When importing a PDF file with text that contains a ligature, inkscape
replaces the ligature with the Unicode replacement character �. This
occurs with some fonts and not with others.

To reproduce the problem:

- create a new document
- text tool, insert text such as ifuflff
- change font to an affected font (examples given below)
- save document as PDF (sample attached)
- (document displays correctly using evince)
- open document using inkscape, with "replace fonts by closest" enabled
- observe Unicode replacement character instead of ligatures

Free fonts on my system which lead to this problem:
- Charis SIL (in TTF, from package fonts-sil-charis)
- Fanwood Text (in OTF, from http://www.theleagueofmoveabletype.com/fanwood)
- Goudy Bookletter 1911 (in OTF, from package ttf-goudybookletter (sic))

A font which does not display the problem:
- Linux Libertine O (in OTF, from package fonts-linuxlibertine)

This seems to be different from upstream bug #271614
(https://bugs.launchpad.net/inkscape/+bug/271614).

I am using kernel 3.3.0-trunk-amd64, libcairo2 version 1.12.2-2,
fonts-sil-charis version 4.106-5.

--
Eric Marsden

[su_v (suv-lp)]

Reproduced with Inkscape 0.48.3.1 and 0.48+devel r11563 on OS X 10.7.4 (using the X11 backend of GTK+ and Pango, normal fontconfig setup similar to linux):

Fonts with broken ligatures on PDF import e.g.
- Charis SIL (v4.110) (TTF, from sil.org)
- Fanwood Text (TTF, from Google)

Fonts preserving ligatures on PDF import e.g.
- DejaVu Sans (TTF)
- Lobster 1.4 (OTF, from www.impallari.com/lobster)

[Nathan Lee (nathan.lee)]

Hi - thanks for reporting this bug, I've manually migrated it to Inkscape's new
bug tracker on GitLab, and closed it here.

Please feel free to file new bugs about the issues you're seeing at
http://inkscape.org/report.

Moved to: https://gitlab.com/inkscape/inbox/issues/1403
Closed by: https://gitlab.com/nathanal