pdfrw is a Python library and utility that reads and writes PDF files:

* Operations include subsetting, merging, rotating, modifying
  metadata, etc.
* The fastest pure Python PDF parser available
* Has been used for years by a printer in pre-press production
* Can be used with rst2pdf to faithfully reproduce vector images
* Can be used either standalone, or in conjunction with reportlab to
  reuse existing PDFs in new ones
* Permissively licensed