Description: PDFsam is an open-source PDF editing software that allows users to merge, split, rotate, mix and extract pages from PDF files. It has a graphical user interface and offers basic PDF manipulation functionalities for free.
Type: software
Pricing: Open Source
Description: PTC Mathcad is engineering calculation software used for solving, analyzing, and sharing engineering design knowledge. It allows engineers to capture and reuse design knowledge and provides a way to document work using standard mathematical notation.
Type: software