Skip to content

Instantly share code, notes, and snippets.

@moaazsidat

moaazsidat/merge_pdfs_command_line.md

Last active September 9, 2023 16:45
Show Gist options
  • Save moaazsidat/b94185e9cfdba9e3cfb5bc90407e6397 to your computer and use it in GitHub Desktop.
Save moaazsidat/b94185e9cfdba9e3cfb5bc90407e6397 to your computer and use it in GitHub Desktop.
Download ZIP
merge pdfs command line
Raw
merge_pdfs_command_line.md 
gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile=merged.pdf *.pdf

Try the good ghostscript:

gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile=merged.pdf mine1.pdf mine2.pdf or even this way for an improved version for low resolution PDFs (thanks to Adriano for pointing this out):

gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress -sOutputFile=merged.pdf mine1.pdf mine2.pdf In both cases the ouput resolution is much higher and better than this way using convert:

convert -density 300x300 -quality 100 mine1.pdf mine2.pdf merged.pdf In this way you wouldn't need to install anything else, just work with what you already have installed in your system (at least both come by default in my rhel).

Hope this helps,

UPDATE: first of all thanks for all your nice comments!! just a tip that may work for you guys, after googling, I found a superb trick to shrink the size of PDFs, I reduced with it one PDF of 300 MB to just 15 MB with an acceptable resolution! and all of this with the good ghostscript, here it is:

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/default -dNOPAUSE -dQUIET -dBATCH -dDetectDuplicateImages -dCompressFonts=true -r150 -sOutputFile=output.pdf input.pdf cheers!!

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment