Description: PDFescape is a free online PDF editor that allows you to view, edit, annotate, fill forms, sign documents, and more with PDF files directly in your web browser. It offers basic PDF editing features for free.
Type: software
Pricing: Freemium
Description: VoltSim is an open-source electric circuit simulator software for Windows, Mac and Linux. It allows users to easily create and simulate analog and digital circuits with a user-friendly GUI. VoltSim supports analysis of circuits with various types of passive and active components.
Type: software
Pricing: Open Source