CreationDate not stripped from PDF file
the PDF file has the CreationDate metadata, mat2 detects it, but it is not removed
see: basket.zip
for full reproduce, install cairo lib, compile, generate pdf file:
$ cc `pkg-config --cflags cairo libpng` `pkg-config --libs cairo libpng` basket_pdf.c -o basket_pdf
$ ./basket_pdf
else just use the attached pdf files:
$ strings basket.pdf | grep CreationDate
/CreationDate (D:20200203100629+01'00)
$ date --date='@1580720789'
lun 3 feb 2020, 10.06.29, CET
$ mat2 -s basket.pdf
[+] Metadata for basket.pdf:
creation-date: 1580720789
format: PDF-1.5
mod-date: -1
producer: cairo 1.16.0 (https://cairographics.org)
$ mat2 basket.pdf
$ mat2 -s basket.cleaned.pdf
[+] Metadata for basket.cleaned.pdf:
creation-date: -1
format: PDF-1.5
mod-date: -1