I have an older installation of Debian, 3.16.7-ckt11-1, running on an i3-2100 @ 3.10GHz w. 8GB RAM, and am running cups v1.7.5. The machine is headless, and is basically a network server/firewall machine. One of its purposes is to provide a pdf converter a la cups. I print from Windows machines using samba quite a lot. I am having a very obscure problem with this driver. It does not seem to be rendering fonts properly. Documents sent to the printer are readable, but if I highlight and copy text out of the document, when I paste it elsewhere, it's not unrecognizable. For instance:
If I take this line of text:
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Power Supply Requirements
I get this:
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There's a larger problem, however: many of the postscript files I send to this device contain encapsulated postscript files, and most but not all of them are getting converted to bitmaps. There does not seem to be a rhyme or reason to it.
I tried copying the postscript file from /var/spool/cups and converting it to a pdf using a command-line call to ghostscript (v9.06), and that produces the exact output I want. I even went to the trouble of using the exact ghostscript call from /etc/cups/cups-pdf.conf. All fonts are rendered properly, and no bitmaps. I am now at the point of printing my jobs from their respective applications by printing to a postscript file and running a bash script -if linux, batch if windows- on them. This seems like a giant step backwards, as before I had to tangle with cups I just used an lpd printer with ghostscript connected to it, et voila; beautifully rendered output with embedded fonts, smooth graphics, nice colours... it was great.
If I go into cups-pdf.conf and set the log level to 4, when I send a job from a word processor, I get something like this:
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Mon Mar 5 16:35:32 2018 [DEBUG] user identified (elvis)
Mon Mar 5 16:35:32 2018 [DEBUG] output directory name generated (/home/elvis/pdf)
Mon Mar 5 16:35:32 2018 [DEBUG] user information prepared
Mon Mar 5 16:35:32 2018 [DEBUG] spoolfile name created (/var/spool/cups-pdf/SPOOL/cups2pdf-994)
Mon Mar 5 16:35:32 2018 [DEBUG] source stream ready
Mon Mar 5 16:35:32 2018 [DEBUG] destination stream ready (/var/spool/cups-pdf/SPOOL/cups2pdf-994)
Mon Mar 5 16:35:32 2018 [DEBUG] owner set for spoolfile (/var/spool/cups-pdf/SPOOL/cups2pdf-994)
Mon Mar 5 16:35:32 2018 [DEBUG] using traditional fgets
Mon Mar 5 16:35:35 2018 [DEBUG] found beginning of postscript code (%!PS-Adobe-3.0)
Mon Mar 5 16:35:35 2018 [DEBUG] now extracting postscript code
Mon Mar 5 16:35:35 2018 [DEBUG] found title in ps code ((smbprn.00003231 my_document)
r a suitable filter for data)
Mon Mar 5 16:35:35 2018 [DEBUG] found end of postscript code (%%EOF)
Mon Mar 5 16:35:35 2018 [DEBUG] all data written to spoolfile (/var/spool/cups-pdf/SPOOL/cups2pdf-994)
Mon Mar 5 16:35:35 2018 [DEBUG] trying to use PS title ((smbprn.00003231 my_document)
r a suitable filter for data)
Mon Mar 5 16:35:35 2018 [DEBUG] removing trailing newlines from title ((smbprn.00003231 my_document))
Mon Mar 5 16:35:35 2018 [DEBUG] removing enclosing parentheses () from full title ((smbprn.00003231 my_document))
Mon Mar 5 16:35:35 2018 [DEBUG] removing special characters from title (smbprn.00003231 my_document)
Mon Mar 5 16:35:35 2018 [DEBUG] title successfully retrieved (smbprn_00003231_my_document)
Mon Mar 5 16:35:35 2018 [DEBUG] input data read from stdin
Mon Mar 5 16:35:35 2018 [DEBUG] output filename created (/home/elvis/pdf/smbprn_00003231_my_document.pdf)
Mon Mar 5 16:35:35 2018 [DEBUG] ghostscript commandline built (/usr/bin/gs -q -dCompatibilityLevel=1.4 -dNOPAUSE -dBATCH -dSAFER -sDEVICE=pdfwrite -sOutputFile="/home/elvis/pdf/smbprn_00003231_my_document.pdf" -dAutoRotatePages=/PageByPage -dAutoFilterColorImages=false -dColorImageFilter=/FlateEncode -dPDFSETTINGS=/prepress -c .setpdfwrite -f /var/spool/cups-pdf/SPOOL/cups2pdf-994)
Mon Mar 5 16:35:35 2018 [DEBUG] output file unlinked (/home/elvis/pdf/smbprn_00003231_my_document.pdf)
Mon Mar 5 16:35:35 2018 [DEBUG] TMPDIR set for GhostScript (/var/tmp)
Mon Mar 5 16:35:35 2018 [DEBUG] waiting for child to exit
Mon Mar 5 16:35:35 2018 [DEBUG] entering child process
Mon Mar 5 16:35:35 2018 [DEBUG] GID set for current user
Mon Mar 5 16:35:35 2018 [DEBUG] supplementary groups set for current user
Mon Mar 5 16:35:35 2018 [DEBUG] UID set for current user (elvis)
Mon Mar 5 16:35:38 2018 [DEBUG] ghostscript has finished (0)
Mon Mar 5 16:35:38 2018 [DEBUG] file mode set for user output (/home/elvis/pdf/smbprn_00003231_my_document.pdf)
Mon Mar 5 16:35:38 2018 [DEBUG] postprocessing commandline built (/usr/sbin/rename_cups_pdf_output /home/elvis/pdf/smbprn_00003231_my_document.pdf elvis elvis)
Mon Mar 5 16:35:38 2018 [DEBUG] postprocessing has finished (0)
Mon Mar 5 16:35:38 2018 [DEBUG] spoolfile unlinked (/var/spool/cups-pdf/SPOOL/cups2pdf-994)
Mon Mar 5 16:35:38 2018 [DEBUG] all memory has been freed
Mon Mar 5 16:35:38 2018 [DEBUG] switching to new gid (lpadmin)
Mon Mar 5 16:35:38 2018 [DEBUG] initialization finished (v2.6.1)
Mon Mar 5 16:35:38 2018 [DEBUG] user identified (elvis)
Mon Mar 5 16:35:38 2018 [DEBUG] output directory name generated (/home/elvis/pdf)
Mon Mar 5 16:35:38 2018 [DEBUG] user information prepared
Mon Mar 5 16:35:38 2018 [DEBUG] spoolfile name created (/var/spool/cups-pdf/SPOOL/cups2pdf-1078)
Mon Mar 5 16:35:38 2018 [DEBUG] source stream ready
Mon Mar 5 16:35:38 2018 [DEBUG] destination stream ready (/var/spool/cups-pdf/SPOOL/cups2pdf-1078)
Mon Mar 5 16:35:38 2018 [DEBUG] owner set for spoolfile (/var/spool/cups-pdf/SPOOL/cups2pdf-1078)
Mon Mar 5 16:35:38 2018 [DEBUG] using traditional fgets
Mon Mar 5 16:35:40 2018 [DEBUG] found beginning of postscript code (%!PS-Adobe-3.0)
Mon Mar 5 16:35:40 2018 [DEBUG] now extracting postscript code
Mon Mar 5 16:35:40 2018 [DEBUG] found title in ps code ((smbprn.00003232 my_document)
r a suitable filter for data)
Mon Mar 5 16:35:40 2018 [DEBUG] found end of postscript code (%%EOF)
Mon Mar 5 16:35:40 2018 [DEBUG] all data written to spoolfile (/var/spool/cups-pdf/SPOOL/cups2pdf-1078)
Mon Mar 5 16:35:40 2018 [DEBUG] trying to use PS title ((smbprn.00003232 my_document)
r a suitable filter for data)
Mon Mar 5 16:35:40 2018 [DEBUG] removing trailing newlines from title ((smbprn.00003232 my_document))
Mon Mar 5 16:35:40 2018 [DEBUG] removing enclosing parentheses () from full title ((smbprn.00003232 my_document))
Mon Mar 5 16:35:40 2018 [DEBUG] removing special characters from title (smbprn.00003232 my_document)
Mon Mar 5 16:35:40 2018 [DEBUG] title successfully retrieved (smbprn_00003232_my_document)
Mon Mar 5 16:35:40 2018 [DEBUG] input data read from stdin
Mon Mar 5 16:35:40 2018 [DEBUG] output filename created (/home/elvis/pdf/smbprn_00003232_my_document.pdf)
Mon Mar 5 16:35:40 2018 [DEBUG] ghostscript commandline built (/usr/bin/gs -q -dCompatibilityLevel=1.4 -dNOPAUSE -dBATCH -dSAFER -sDEVICE=pdfwrite -sOutputFile="/home/elvis/pdf/smbprn_00003232_my_document.pdf" -dAutoRotatePages=/PageByPage -dAutoFilterColorImages=false -dColorImageFilter=/FlateEncode -dPDFSETTINGS=/prepress -c .setpdfwrite -f /var/spool/cups-pdf/SPOOL/cups2pdf-1078)
Mon Mar 5 16:35:40 2018 [DEBUG] output file unlinked (/home/elvis/pdf/smbprn_00003232_my_document.pdf)
Mon Mar 5 16:35:40 2018 [DEBUG] TMPDIR set for GhostScript (/var/tmp)
Mon Mar 5 16:35:40 2018 [DEBUG] waiting for child to exit
Mon Mar 5 16:35:40 2018 [DEBUG] entering child process
Mon Mar 5 16:35:40 2018 [DEBUG] GID set for current user
Mon Mar 5 16:35:40 2018 [DEBUG] supplementary groups set for current user
Mon Mar 5 16:35:40 2018 [DEBUG] UID set for current user (elvis)
Mon Mar 5 16:35:44 2018 [DEBUG] ghostscript has finished (0)
Mon Mar 5 16:35:44 2018 [DEBUG] file mode set for user output (/home/elvis/pdf/smbprn_00003232_my_document.pdf)
Mon Mar 5 16:35:44 2018 [DEBUG] postprocessing commandline built (/usr/sbin/rename_cups_pdf_output /home/elvis/pdf/smbprn_00003232_my_document.pdf elvis elvis)
Mon Mar 5 16:35:44 2018 [DEBUG] postprocessing has finished (0)
Mon Mar 5 16:35:44 2018 [DEBUG] spoolfile unlinked (/var/spool/cups-pdf/SPOOL/cups2pdf-1078)
Mon Mar 5 16:35:44 2018 [DEBUG] all memory has been freed
Thanks in advance,
lj