Merge / convert multiple PDF files into one PDF?

Question

How could I merge / convert multiple PDF files into one large PDF file? I tried the following, but the content of the target file was not as expected: convert file1.pdf file2.pdf merged.pdf I need a very simple/basic command line (CLI) solution. Best would be if I could pipe the output of the merge / convert straight into `pdf2ps` ( as originally attempted in my previously asked question here: https://stackoverflow.com/questions/2507596/linux-piping-convert-pdf2ps-lp ).

Answer 1

pandoc. Hands down it's the best tool for this. I use it daily with an application that I work on. You can literally do something like this... "pandoc <file1.pdf file2.pdf...> -o output.pdf.

It's an amazing document conversion tool written in Haskel. It supports many formats, and many pdf engines to be specific.

https://pandoc.org/