Last week Saturday I sent an e-mail to support - support@tracker-software.com - but unfortuantely to date not received a reply or acknowledgement of my mail.

Here again my problem report:
I am creating PDF files with LibreOffice writer. Unfortunately there is a bug in LibreOffice writer that leads to fonts being embedded that are actually not in the source file. See these bugs:
https://bugs.documentfoundation.org/sho ... ?id=122657
( Bug 122657 - Converting .odt file to PDF contains fonts that are not in the .odf file )
and
https://bugs.documentfoundation.org/sho ... ?id=118541
( Bug 118541 - Undesired font embedded in pdf form created with Libre Office Writer )
It seems that it the LO people do not know how to remove these fonts from the ODT file. Details are in bug #122657.
I thought I can achieve this by using PDF XChange Editor. But it appears that this is not possbile when saving the file as optimised. See attached video file and sample files.
Please let me know to why this is the case and how I can remove unwanted fonts from a PDF file created by LibreOffice.
Thank you!
Some additional information:
unembed_fonts_problem.zip - contains two pdf files and a LibreOffice writer file
pdf_font_remove.rar.zsp.rar and pdf_font_remove.rar.1.rar - contain a demo .mp4 video of the issue requires unsplit_script.zip
unsplit_script.zip - contains a script file to rebuild the original pdf_font_remove.rar which contains the .mp4 video file
BTW - I converted a MS PPTX file with PDF-Xchange and see the same as with a LO document.
Please advise / help on how I can unembedded non-existing fonts from a PDF file.
Thank you.
Regards,
--Christian