Hello, to validate the hypothesis you could modify by hand the PDF by changing the name of the fonts in the tags /FontName and /BaseFont to a pattern used for embedded subset like AAAAA+xx (the value of xx is not important) without adding nor removing any byte from the PDF. If this solves the issue maybe a patch to font name generation is needed for embedded subsets.
Best regards. Il giorno mar 16 ago 2022 alle ore 20:45 <simonsteiner1...@gmail.com> ha scritto: > Hi, > > > > If I am able to source a iOS/mac device at work, I will look into this. > > > > Thanks > > > > *From:* Mark Gibson <mark.gib...@staff.bluematrix.com> > *Sent:* 16 August 2022 16:56 > *To:* fop-users@xmlgraphics.apache.org > *Subject:* RE: Corrupt font display on iOS when using PDF-Images with > merge-fonts=true > > > > Hi Luca > > > > We have no control over the source PDF being embedded. They are often > (but not always) exported as PDF from Excel. And done by our clients, not > us. > > > > Do we have any other options? Either via fixups to FOP or bug > notifications to iOS browsers (I’m gonna guess chromium). > > > > Thanks > > Mark > > > > *From:* Luca Bellonda <lbello...@gmail.com> > *Sent:* 16 August 2022 14:47 > *To:* fop-users@xmlgraphics.apache.org > *Subject:* Re: Corrupt font display on iOS when using PDF-Images with > merge-fonts=true > > > > [EXTERNAL] > > > > Hello the PDF is visible on Linux viewers and browsers, but the fonts are > embedded as subset in both the source PDFs and as fully embedded in the > final PDF with the fonts merged. > > The name of the font in the source pdf for example is BCDEEE+Calibri-Bold, > compatible with embedded subsets (6 chars and a plus sign). > > The name of the font in the merged file is Calibri-Bold, which should > identify it as fully embedded. > > I guess the wrong viewer is not able to deal with the character decoding, > thinking to use a fully embedded font. > > Please, try generating the source PDFs embedding the whole fonts and not a > subset. > > > > > > lb > > > > > > Il giorno mar 16 ago 2022 alle ore 13:13 Mark Gibson < > mark.gib...@staff.bluematrix.com> ha scritto: > > > > https://issues.apache.org/jira/browse/FOP-3089 > > > > Viewing in Windows browsers is fine > > Viewing in iOS browsers is corrupt > > Viewing in Adobe app on iOS and windows is fine > > Apologies, no access to Linux devices to test viewing > > > > Same issue occurs when running FOP 2.7 on Linux (CentOS) and Windows (10) > > > >
