Fatal: dict=fileSpecDict entry=UF: unsupported in version 1.3

[Sébastien Gross]

I tries to reopen #166 because I have similar issue but I cannot.

I am reopening this one because I have the same error with

The file I used is https://www.sia.aviation-civile.gouv.fr/media/store/documents/file/l/f/lf_sup_2023_066_fr.pdf.

Fatal: dict=fileSpecDict entry=UF: unsupported in version 1.3

I did a change in

pdfcpu/pkg/pdfcpu/validate/fileSpec.go

Line 354 in dfaa588

 sinceVersion = model.V14 

to change the valid version to V13:

        sinceVersion = model.V13

And it works for me. Let me know if you want me to create a patch for that.