PDFTK Builder - PDFTK Builder is a free graphical interface to for PDFTK, making it much easier to use.

Brandfolder - One link to all your marketing assets. Brandfolder is your convenient source to visually organize, quickly find and easily share all your final brand assets.

QPDF - QPDF is a command-line program that does structural, content-preserving transformations on PDF...

Widen Collective - Widen Media Collective creates a seamless workflow for the creation, management and distribution of digital media assets throughout digital.

PyPDF2 - PyPDF2 - A utility to read and write pdfs with Python

Bynder - Bynder is a cloud-based digital asset management solution for marketing professionals looking to simplify how they manage digital content via one central portal.