I am attaching two files (adobereaderps.types and adobereaderps.convs) to this and to the next comment. These make CUPS detecting PostScript coming from the Adobe Reader and not applying the PDF printing workflow on them (keeping them PostScript until processed by the printer driver). Note that all PostScript files from Adobe Reader will get treated this way as CUPS is not able to distinguish PostScript from encrypted and unencrypted PDFs (CUPS only takes into account the first 4096 bytes of an input file to auto-type it).
Install the files by copying them into your /etc/cups/ directory and making sure that they are readable for everyone ("sudo chmod 644 /etc/cups/adobereaderps.*"). Then restart CUPS with
sudo restart cups
After that try to print your files. Does it work now?
I am attaching two files (adobereaderps. types and adobereaderps. convs) to this and to the next comment. These make CUPS detecting PostScript coming from the Adobe Reader and not applying the PDF printing workflow on them (keeping them PostScript until processed by the printer driver). Note that all PostScript files from Adobe Reader will get treated this way as CUPS is not able to distinguish PostScript from encrypted and unencrypted PDFs (CUPS only takes into account the first 4096 bytes of an input file to auto-type it).
Install the files by copying them into your /etc/cups/ directory and making sure that they are readable for everyone ("sudo chmod 644 /etc/cups/ adobereaderps. *"). Then restart CUPS with
sudo restart cups
After that try to print your files. Does it work now?