4,878 reputation
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location Germany
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visits member for 4 years, 2 months
seen Aug 5 at 17:57

I happen to know a thing or two about printing, PDF, PostScript, PJL, Fonts and related stuff.

Also familiar with some bits and pieces of Linux, Unix, Samba and Solaris printing. Not to forget bash programming and Windows cmd.exe batch scripting. I also do consultancy in these topics.

If you want, I share some of this knowledge here and on Stackoverflow (SO). Just click to browse for all.

Stackoverflow.com:

Superuser.com:

Serverfault.com:


Sep
25
comment I want to change DPI with Imagemagick without changing the actual byte-size of the image data
No it's not possible to get what you asked before! If you had formulated your question like this: "I want to change the size of image for printouts (different DPI) without changing the byte-size of my image data" -- then it would be a different thing altogether, and your question wouldn't have been so easy to mis-understand....
Sep
24
comment I want to change DPI with Imagemagick without changing the actual byte-size of the image data
user1694803: You should remember to return to Martin Wilson's answer and 'upvote' it too (click on the small ^ icon to the left of his answer), not just 'accept' it as soon as you have enough personal reputation (I think you need +15)...
Sep
24
answered I want to change DPI with Imagemagick without changing the actual byte-size of the image data
Sep
13
comment Need to print to cups-pdf from rmcobol program - how to configure terminfo?
How exactly is your cupspdf printer defined in CUPS? I'd first be interested in the output of these three commands: (1) lpstat -v cupspdf and (2) ls -l /etc/cups/ppd/cupspdf.ppd and (3) grep cupsFilter /etc/cups/ppd/cupspdf.ppd.
Sep
13
comment Need to print to cups-pdf from rmcobol program - how to configure terminfo?
Does your cupspdf printer (supposedly defined in CUPS) print when you use the commandline or any other application (not 'rmcobol', whatever that is)?
Sep
4
awarded  Nice Answer
Sep
3
comment Linux-based tool to chop PDFs into multiple pages
@mullhausen: thanks for correcting the typo (421 -> -421). ;-)
Aug
7
revised In gimp, why “save as” ps and “print to file” in pdf?
added 292 characters in body
Aug
6
comment How to insert white space with imagemagick?
sed 's#-extend#-extent#g'
Aug
6
revised How to insert white space with imagemagick?
remove accidental 'montage'
Jul
28
revised In gimp, why “save as” ps and “print to file” in pdf?
added 1 characters in body
Jul
28
answered How to add a picture onto an existing pdf file?
Jul
28
comment In gimp, why “save as” ps and “print to file” in pdf?
Export as... or Render as... I would reserve for such occasions onl where the application itself is creating the PDF (such as OpenOffice or LibreOffice are able to).
Jul
28
answered In gimp, why “save as” ps and “print to file” in pdf?
Jul
25
awarded  Revival
Jul
16
awarded  Necromancer
Jul
15
comment How to convert PDF/A to normal PDF?
@user67275: It is common on this Web-Platform to NOT say 'thank you', but to instead upvote good answers. How to upvote? Simply click on the ^ icon to the left of the answer....
Jul
12
comment How to remove watermark from pdf using pdftk?
I'm willing to bet it can be done. But most likely not with pdftk... (But to proof it, one would need access to the file. It's in the public domain, is it?!?)
Jul
10
awarded  Caucus
Jul
10
revised How to create a transparent image with GraphicsMagick CLI?
improve formatting