Created attachment 132353 [details] Reproducer document. See the attached document. It was created by exporting a Writer document to PDF, then inserting that PDF as a "PDF image". If you export this ODT to PDF, then the name F1 of a font resource is unknown.
Miklos Vajna committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=242a9b634213acf03cabc373928555dc81afc672 tdf#106972 vcl PDF export, PDF images: handle indirect font references It will be available in 5.4.0. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Another related problem is when the PDF image is PDF-1.5/1.6/1.7: we can't embed that in a native way in our default PDF 1.4 output.
Miklos Vajna committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=4443d7be61a9ae45630183d856a566cecd06ad95 Related: tdf#106972 vcl PDF export, PDF images: ignore PDF >= 1.5 It will be available in 5.4.0. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Miklos Vajna committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=37bdf1659ddb11d8706289511623cc7c8b0d264b Related: tdf#106972 vcl PDF import: downgrade PDF >= 1.5 It will be available in 5.4.0. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.