pdfjoin
pdfjoin
TLDR
Merge two PDFs
$ pdfjoin [file1] [file2] --outfile [output_file]
Save pages 3 to 5 followed by page 1 to a new PDF
$ pdfjoin [file 3-5,1] --outfile [output_file]
Merge subranges from two PDFs
$ pdfjoin [file1 3-5,1] [file2 4-6] --outfile [output_file]