I have 250 pdf files in one folder that I want to merge in one document. The order does not matter. Is there a simple way of doing it?

I can use PDF-Shuffler as suggested here https://askubuntu.com/a/2805/247771 but the progam hangs for 10 minutes befor it has loaded all the pdfs.

Can I achive this maybe with an inline command like

pdftk *.pdf output mergedfiles.pdf


  • 3
    Your pdftk command is just missing a cat I think: pdftk *.pdf cat output mergedfiles.pdf – steeldriver Feb 24 '17 at 17:04
  • @steeldriver if you write an answer I would mark it as chekced. – Adam Mar 26 '18 at 16:15

I would use pdfunite. It is nice and simple. cd to your directory. Then use something like this:

pdfunite *.pdf all.pdf

(Before running, make sure you don't already have a file called all.pdf in that directory.)

  1. sudo apt-get install gs
  2. gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=target.pdf -dBATCH xx.pdf xx.pdf xx.pdf ...
  3. you can get all filenames through ls -l *.pdf | awk command

Wish it helps . ^_^

  • On Ubuntu 16.04 I get E: Package 'gs' has no installation candidate. – MERose Aug 29 '17 at 19:42

Thanks to steeldriver who showed me that this is doing the job:

pdftk *.pdf cat output mergedfiles.pdf

You can use qpdf as pdftk is not available in ubuntu bionic:

qpdf --empty --pages *.pdf -- out.pdf

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