pdf format - Merge pdfs to one

I have a set of pdfs in a folder, named: 1.pdf,2.pdf,3.pdf,...,20.pdf

Is it possible for mathematica to merge them to one pdf ? If yes, how ?

I had a look at this answer, but I don't really understand how to use it for my case: Combine multiple PDF files into one document

This is what I tried: I import the PDS:

pages = Import[ToString[#] <> ".pdf"] & /@ Range[20];

Then I use the code provided in the linked question:

Export["test.pdf", 
 CreateDocument[
  Riffle[Join[pages, pages], 

   Cell["", "PageBreak", PageBreakBelow -> True]], Visible -> False]]

but the result is that the "comma" is still visible next to each pdf and the pdf pages have been shrinked down by quiet a lot. ... and instead of being 20 pages, it is now 40 pages, each pdf page was printed twice.

Comments

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