Description: Connected Papers is a free academic search tool that helps researchers discover new connections between published research papers. It analyzes the text of a researcher's paper to find related papers and visualizes the connections in an interactive graph.
Type: software
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