https://bugs.documentfoundation.org/show_bug.cgi?id=165036
Bug ID: 165036
Summary: ODP/PPT -> PPTX converted files fail opening in
PowerPoint
Product: LibreOffice
Version: 25.2.0.0 alpha0+
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: regression
Severity: normal
Priority: medium
Component: Impress
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
ODP/PPT -> PPTX converted files fail opening in PowerPoint
Samples: attachment 102713 from bug 81300, attachment 138595 from bug 114650
>From https://gerrit.libreoffice.org/c/core/+/180539
sd: de-duplicate slide masters on save to pptx
pptx files have layouts separated from masters, so multiple layouts can
reference the same master. On import that master is duplicated for each
layout. So we want that if it is saved without modification, the created
file contains the same number of masters and layouts as the original
pptx file.
The commit d590f094ccd28ca449eff91692c2178058d5c621 "tdf#155512: sd:
filter: eppt: add "SlideLayout" property to Slide Master" tried to do
this but saved too many layouts, which appeared as extra masters on
reload. The commit bff76421e234df7246a7f49c71a11432f86e09d1 "tdf#157740
FILESAVE PPTX: fix explosion of the number of master slides" fixed the
issue of extra layouts but removed the de-duplication of masters.
This commit avoids saving duplicated masters while keeping the correct
saving of layouts.
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