mutool merge

The merge command is used to pick out pages from two or more files and merge them into a new output file.

mutool merge [-o output.pdf] [-O options] input1.pdf [pages1] [input2.pdf] [pages2] ...

[-o output.pdf]

The output filename. Defaults to “out.pdf” if not supplied.

[-O options]

See PDF Write Options.

input1.pdf

The first document.

[pages1]

Comma separated list of page ranges for the first document (input.pdf). The first page is “1”, and the last page is “N”. The default is “1-N”.

[input2.pdf]

The second document.

[pages2]

Comma separated list of page ranges for the second document (input2.pdf). The first page is “1”, and the last page is “N”. The default is “1-N”.

...

Indicates that we add as many additional [input] & [pages] pairs as required to merge multiple documents.