[Libreoffice-bugs] [Bug 133881] Kerning changed in exported PDF. Kerning in ODT looks smooth. Kerning in PDF chaotic

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=133881

--- Comment #11 from thatho <milan.berta at gmail.com> ---
The following has been added to the bug report:

The original ODT
2020-06-12 kerning issue.odt

The PDF export
2020-06-12 kerning issue.pdf

A PNG export of the ODT: ODT cannot be enlarged more than 600%. A larger zoom
was needed. No kerning or aligning differences has been observed to the ODT.
2020-06-12 kerning issue.png

A screenshot of the PNG and PDF side by side.
2020-06-12 kerning issue (compare ODT_PNG and PDF).png

Highlight of the differences:
2020-06-12 kerning issue (compare ODT_PNG and PDF) diff in aligning and
kerning.png
Some vector elements were placed into the previous image to highlight the
differences. The vector elements of same color are identical, they are clones.
Namely the differences:
* different vertical alignment of the "y", "á" and "z".
* different horizontal spacing (kerning) between "s" and "z"

Highlight of the differences in vector (Inkscape has been used):
2020-06-12 kerning issue (compare ODT_PNG and PDF) diff in aligning and
kerning.svg

Version: 7.1.0.0.alpha0+ (x64)
Build ID: a201ab6f47c2d5a7ba4c5f998b0aa231cae82010
CPU threads: 8; OS: Windows 10.0 Build 18362; UI render: Skia/Raster; VCL: win
Locale: cs-CZ (cs_CZ); UI: en-US
Calc: CL

Also in 6.4.4.2

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