https://bugs.documentfoundation.org/show_bug.cgi?id=150310
Bug ID: 150310
Summary: Changing the DPI during Export of PNG does not change
the resulting file
Product: LibreOffice
Version: 7.3.5.2 release
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Draw
Assignee: [email protected]
Reporter: [email protected]
By default the PNG export filter uses 96 dpi. However, changing it in the "PNG
Options" dialog does not change the resulting exported PNG file.
Steps to reproduce:
PART A: Create a default PNG export
1) Create a new Drawing and insert a single shape into it
2) Select the shape and go to File - Export
3) Check "Selection" and give a name to the file
4) Select the PNG filter and click Save
5) In the "PNG Options" dialog, do not change anything (here we want the
default export)
6) Click OK
7) Now check the file size and open it
PART B: Create a PNG with higher DPI (f.i. 300 dpi)
1) Select the same shape from Part A
2) Do the same steps, but now in the "PNG Options" click "Modify Resolution"
and enter 300 in the resolution field (make sure the "pixels/inch" measure is
selected)
3) Click OK
4) Now go check the file. It is identical to the file from Part A (they even
have the same MD5 checksums)
Both files should be different. File from Part B should have higher resolution,
but instead both files are identical.
System info
Version: 7.3.5.2 / LibreOffice Community
Build ID: 30(Build:2)
CPU threads: 16; OS: Linux 5.15; UI render: default; VCL: kf5 (cairo+xcb)
Locale: pt-BR (pt_BR.UTF-8); UI: en-US
Ubuntu package version: 1:7.3.5-0ubuntu0.22.04.1
Calc: threaded
Also repro in
Version: 7.5.0.0.alpha0+ / LibreOffice Community
Build ID: c2e86396b741b956efc05e9dfea1e1c3286dfb9d
CPU threads: 16; OS: Linux 5.15; UI render: default; VCL: kf5 (cairo+xcb)
Locale: pt-BR (pt_BR.UTF-8); UI: en-US
Calc: threaded
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