Created attachment 130589 [details]
original slide and generated broken pdf
LibreOffice 4.4 (and 5.1) generates a broken PDF for the attached pptx file.
Opening the PDF in Acrobat results in "There was an error processing a page. There was a problem reading this document (109)."
i can open the attached document with evince and firefox under linux. Probably it's only reproducible with Adobe?
Anyway, it seems you're using an old version of LibreOffice.
Could you please try to reproduce it with the latest version of LibreOffice from https://www.libreoffice.org/download/libreoffice-fresh/ ?
I have set the bug's status to 'NEEDINFO'. Please change it back to 'UNCONFIRMED' if the bug is still present in the latest version.
I tried it with latest version of LibreOffice ( 126.96.36.199) and still the same problem. Yes it only happens with Adobe Acrobat Reader. It is file in firefox, ...
it is *fine in firefox.
Build ID: a25b1ff25a3be97d688d66b12353b4217fd239a5
CPU Threads: 4; OS Version: Linux 4.8; UI Render: default; VCL: gtk2;
Locale: ca-ES (ca_ES.UTF-8); Calc: group
and Chrome 46.0.2490.80
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Version: 188.8.131.52.alpha0+ (x64)
Build ID: 0f25a3c36f27fd51453b9a9115f236b83c143684
CPU threads: 4; OS: Windows 10.0; UI render: GL; VCL: win;
TinderBox: Win-x86_64@42, Branch:master, Time: 2018-11-27_20:06:55
Locale: zh-TW (zh_TW); UI-Language: en-US
Still exists in version 184.108.40.206.alpha0+ (x64)
The generated broken pdf cannot be opened in Chrome/Acrobat Reader/PDF-XChange Editor/Firefox. I tried to export the original slide as another PDF in version 220.127.116.11.alpha0+ (x64) again, and the problem still exists.
Reproduced with attached PDF and with LO 18.104.22.168. but not with master LO 70+ exported PDF.
Fixed in 7.0 with:
Linux commit 2a24d32dc0c13567943950d0b74eeaa23f707eb3
Date: Mon Jan 20 23:17:39 2020 +0100
author Miklos Vajna <firstname.lastname@example.org> Mon Jan 20 2020
PDF export: skip pointless downsampling for very small images
Regression from commit b6588bd7c831ce88a29131ca7ea8d3f3e082564e (Reduce
image resolution by default in PDF Export, 2014-03-02) the problem is
that in case you have small enough bitmaps, then these used to look
OK at reasonable zoom levels, but now we intentionally scale down
bitmaps by default.
That makes little sense for tiny images, do this only for large ones.