BUG - Font error in Acrobat "preflight" but not in PDFBox "preflight"
i already created a bug report to pdfbox because i thought it's not a adobe bug. But in the comments they told me thats maybe an adobe bug.
The link of the bug is:
Is it possible to check which is correct?
Thanks for raising your concern, we are escalating the issue to the concerned team. I would like to add Acrobat XI now is end of life, i would recommend upgrading to Acrobat DC for a better experience.