https://bugs.documentfoundation.org/show_bug.cgi?id=92505
Bug ID: 92505
Summary: Unicode character rendering artifacts when
substituting missing glyphs
Product: LibreOffice
Version: 4.2.8.2 release
Hardware: All
OS: Linux (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Writer
Assignee: [email protected]
Reporter: [email protected]
Created attachment 117007
--> https://bugs.documentfoundation.org/attachment.cgi?id=117007&action=edit
sample document demonstrating unicode rendering under different fonts
**Overview**
All LibreOffice releases since the introduction of the 4.2.x have trouble
rendering Unicode characters when substituting missing glyphs in a font family.
**Detailed description**
Some fonts do not contain the full unicode character-set. In these cases up
until ~4.1.6.2 LibreOffice would substitute missing glyphs with other fonts,
usually DejaVu Sans or Serif. This seems to have stopped working properly in
more recent releases. The sample document attached to this bug report
demonstrates how some Unicode characters (most out of the "arrow" subset)
render under different fonts.
**Affected releases**
tested LO release affected?
3.6.6 no
3.7.2 no
4.0.6.2 no
4.1.6.2 no
4.2.8.2 yes
4.3.7 yes
4.4.4 yes
5.0.0.2 yes
**Steps to reproduce**
1. Download the attached sample .odt document
2. Open the document in LibreOffice <=4.1.6.2 and >=4.2.8.2, respectively.
3. Compare how LO renders the Unicode characters depending on the font they are
formatted in
- on LO <=4.1.6.2 all characters will render properly (compare attached pdf
file unicode_subistitution_sample_1_LO4162.pdf)
- on LO >=4.2.8.2 Unicode characters formatted in Helvetica LT Std and
Myriad Pro will render with overlapping artifacts or not render at all. Some
Unicode characters formatted in DejaVu Serif will also be missing. (compare
attached pdf file unicode_subistitution_sample_1_LO444.pdf)
**Additional information**
OS: Ubuntu 12.04 LTS
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