pdfjam takes one or more PDF/JPG/PNG/etc files and produces one or more PDF files as output. It can be used to join files together, splitting files apart, resizing pages, etc
The pdfjam script takes one or more PDF files (and/or JPG/PNG graphics files) as input, and produces one or more PDF files as output. It is useful for joining files together, selecting pages, reducing several source pages onto one output page, etc.
Project homepage: https://github.com/DavidFirth/pdfjam