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I have a pdf document which covers half of an A4 page. Is there a way to duplicate the text/images of that document, such that I get a single page A4 document (pdf file) with twice the orginal content, one above each other? Since the original only covers half a page, no scaling should be necessary.

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You can use a combination of pdfjam and pdftk to do this:

pdfjam --offset '0mm -148.5mm' half-a4.pdf --outfile other-a4.pdf
pdftk half-a4.pdf stamp other-a4.pdf output double.pdf

pdfjam is being used to shift the page down half a page (A4 = 297mm tall, and 297÷2=148.5). If you need to shift the other way, you'd use -110mm 0mm.

Then pdftk puts the two pages on top of each other.

half A4 (original) + other half A4 (generated) = double (generated)

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You can try the command convert as follows:

convert -density 300 -define pdf:fit-page=A4 <in.pdf> <out.pdf>

Another solution:

pdfjam --outfile <output.pdf> --paper a4paper <input.pdf>

Main man page is here

Manual is here

Download here

Example commands are here

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  • This did not do anything. The output.pdf file looks the same as the input. – user1583209 Sep 5 '18 at 20:42
  • Did you try the command convert something like convert -density 300 -define pdf:fit-page=A4 <in.pdf> <out.pdf> – user88036 Sep 5 '18 at 20:51
  • Yes, I tried both, and neither worked for me. – user1583209 Sep 6 '18 at 12:52
  • Same results here... – David Fraser Apr 8 '19 at 12:36

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