checkuserpasswdPDF.sh: #!/bin/sh GS=~/gs/bin/gs output=`$GS -dBATCH -sNODISPLAY “$1” 2>&1` gsexit=$? if [ “$gsexit” == “0” ]; then echo “Not user-password protected” exit 0; else found=`echo “$output” |grep -o “This file requires a password”` if [ -z “$found” ]; then echo “Failed to invoke gs” exit $gsexit else echo “Protected” exit 0; fi fi Checks for user-password … Read more
Here is an example Ghostscript commandline, which would convert and merge the two (or more) PostScript files into one PDF in a one go: gswin32c.exe ^ -o c:/path/to/output.pdf ^ -sDEVICE=pdfwrite ^ -dPDFSettings=/Screen ^ […more desired parameters (optional)…] ^ /path/to/first.ps ^ /path/to/second.ps ^ /path/to/third.pdf Edit: my first shot had falsely assumed PDF input files. It works … Read more
Bit too big for a comment, so I’ve added a new answer. The EndPage procedure (see page 441 of the PostScript Language Reference Manual) takes two additional parameters on the stack, a count of pages emitted so far, and a reason code. You can use the count of pages to do interesting things like duplexing, … Read more
If you don’t want to write your own program code (as Nikolaus suggested), but use a Ghostscript commandline instead, you need to know 3 things: PostScript has a setpagedevice operator that takes a PageOffset parameter; Ghostscript will process snippets of PostScript code if you pass them with -c … on the commandline; Ghostscript can evaluate … Read more
I’m not too familiar with PyPDF, but I know Ghostscript will be able to do this for you. Here are links to some other answers on similar questions: Convert PDF 2 sides per page to 1 side per page (SuperUser.com) Freeware to split a pdf’s pages down the middle? (SuperUser.com) Cropping a PDF using Ghostscript … Read more
This answer is not for Illustrator, but for ‘some other tool’, namely Ghostscript (download gs871w32.exe or gs871w64.exe). Ghostscript allows you to ‘re-distill’ PDFs (without an intermediate conversion to PostScript, the dreaded ‘refrying’ detour). Try this command: gswin32c.exe ^ -o c:/path/to/output-cmyk.pdf ^ -sDEVICE=pdfwrite ^ -dUseCIEColor ^ -sProcessColorModel=DeviceCMYK ^ -sColorConversionStrategy=CMYK ^ -sColorConversionStrategyForImages=CMYK ^ input-rgb.pdf And if you … Read more
sdaau, the command you used for trying to convert your PDF to CMYK was not correct. Try this one instead: gs \ -o test-cmyk.pdf \ -sDEVICE=pdfwrite \ -sProcessColorModel=DeviceCMYK \ -sColorConversionStrategy=CMYK \ -sColorConversionStrategyForImages=CMYK \ test.pdf Update If color conversion does not work as desired and if you see a message like “Unable to convert color space … Read more
This is to convert a pdf document (not pdf/a) into pdf/a: gs -dPDFA -dBATCH -dNOPAUSE -dUseCIEColor -sProcessColorModel=DeviceCMYK -sDEVICE=pdfwrite -sPDFACompatibilityPolicy=1 -sOutputFile=output_filename.pdf input_filename.pdf Hope this will help some one!
Unfortunately it doesn’t seem quite easy to get the (possibly different) page sizes (or *Boxes for that matter) inside a PDF with the help of Ghostscript. But since you asked for other possibilities as well: a rather reliable way to determine the media sizes for each page (and even each one of the embedded {Trim,Media,Crop,Bleed}Boxes) … Read more
Meanwhile the latest Ghostscript releases have a much nicer and easier to use method of removing all images from a PDF. The parameter to add to the command line is -dFILTERIMAGE gs -o noimages.pdf -sDEVICE=pdfwrite -dFILTERIMAGE input.pdf Even better, you can also remove all text or all vector drawing elements from a PDF by specifying … Read more