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https://issues.apache.org/jira/browse/FOP-3089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17581852#comment-17581852
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Simon Steiner commented on FOP-3089:
------------------------------------
You can see a list at:
https://issues.apache.org/jira/issues/?jql=project%20%3D%20FOP%20AND%20fixVersion%20%3D%20trunk
The releases happen in January recently, but there is no fixed timeline.
> Corrupt font display in iOS when using PDF-Images with merge-fonts=true
> -----------------------------------------------------------------------
>
> Key: FOP-3089
> URL: https://issues.apache.org/jira/browse/FOP-3089
> Project: FOP
> Issue Type: Bug
> Environment: Both Windows and Linux (CentOS)
> Reporter: Mark Gibson
> Assignee: Simon Steiner
> Priority: Major
> Fix For: trunk
>
> Attachments: CorrupPdfViewComparison.png, fop-mergefonts.xml,
> fop.xml, image1.pdf, pdf-images-mergefonts.pdf, pdf-images.fo, pdf-images.pdf
>
>
> Using PDF-Images to inject a PDF as an image (fo:external-graphic). When
> setting merge-fonts=true in fop config, there are visual issues with the
> fonts in the embedded image when viewing the rendered PDF on in-browser
> viewers on iOS.
> All tests have been carried out using FOP 2.7. When merge-fonts=false, the
> PDF displays fine in all known browsers.
> Tested viewing on latest iPadOS 15.6, and iOS 15.6, latest browser versions
> for Safari, Chrome, and DuckDuckGo.
> Viewing the rendered PDF on windows browsers, the PDF displays fine.
> Ironically, when viewing the PDF on the Adobe Acrobat app for iOS, it
> displays fine. Apologies, I don't have access to Linux to test browsers
> there.
> I've attached some files for reproduction:
> * *{{pdf-images.fo}}*
> * *{{image1.pdf}}* - image being embedded
> * *{{fop.xml}}* - fop config with merge-fonts=false
> * *{{fop-mergefonts.xml}}* - fop config with merge-fonts=true
> * *{{pdf-images.pdf}}* - PDF rendered with merge-fonts=false
> * *{{pdf-images-mergefonts.pdf}}* - PDF rendered with merge-fonts=true
> I also attached a screenshot of the two PDFs as viewed on an iOS device.
> Fonts (calibri.ttf, calibrib.ttf) can be provided on request.
> Commands to render the two PDFs are as follows:
> * {{…/fop.bat -fo pdf-images.fo -c fop.xml -pdf pdf-images.pdf}}
> * {{…/fop.bat -fo pdf-images.fo -c fop-mergefonts.xml -pdf
> pdf-images-mergefonts.pdf}}
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