https://bugs.documentfoundation.org/show_bug.cgi?id=115898
Bug ID: 115898
Summary: Wish create an option to disable SVG or SVM files in
ODF(odt,ods,odp,odg) wont copy of PNG format.
Product: LibreOffice
Version: 6.0.1.1 release
Hardware: x86-64 (AMD64)
OS: Windows (All)
Status: UNCONFIRMED
Severity: enhancement
Priority: medium
Component: LibreOffice
Assignee: [email protected]
Reporter: [email protected]
Description:
SVG images in ODF would have an extra copy of PNG format, which makes the file
size become large. Is it intentional? If yes, why?
Opening files with SVG images inside or SVM starview metafile in LibreOffice
and saving as ODF format files, the file sizes became much more. Then the user
found that under the Pictures folder of ODF format files, all the SVG and SVM
files had a copy of PNG format, which made the file size became much more than
the original file.
The SVG files were made by Apache OpenOffice, In AOO it wouldn't have a PNG
copy, But SVM files.
Is this behavior intentional? Would anyone please tell us what it is for?
Besides, is there any expert options to control this behavior, i.e., to control
if a PNG copy is made or not?
If png version is included to help consumers, which are not able to read
svg-images. For example Word got only recently the ability to read svg-images.
Including different representations of the same content is explicitly allowed
in file format for this purpose.
But now the SVG was general standard, many programs can open or view it, So
give up those PNG copy and restore ODT size, maybe it is a good idea, Moreover,
SVM files were not have PNG copy, when convert ODF format files include svm
files, svm files were be converted to emf files.
Steps to Reproduce:
1.Create an document, odt,ods,odp or odg
2.past vector illustration file as GDI metafile.
3.Save ODF format file
4.Open ODF format file with 7-zip, the pictures folder will have PNG copy
files.
Actual Results:
Every SVG or SVM files in ODF format had an PNG copy, It will increase ODF
format file sizes, If have many ODF format files that include a lot of SVG or
SVM, Will need many storage space, for government, Large Mechanism and company,
It is not a good situation.
Expected Results:
Wish create an option to disable SVG or SVM files in ODF(odt,ods,odp,odg) wont
copy of PNG format.
So can reduce LibreOffice ODF format files sizes.
Reproducible: Always
User Profile Reset: Yes
Additional Info:
[Information automatically included from LibreOffice]
Locale: zh-TW
Module: StartModule
[Information guessed from browser]
OS: Windows (All)
OS is 64bit: no
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:54.0) Gecko/20100101
Firefox/54.0
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