Description: Balsamiq Wireframes is a rapid low-fidelity UI wireframing tool that allows designers to quickly mockup user interfaces for web and mobile apps. Its simple and intuitive drag-and-drop interface makes it easy to arrange pre-built UI components to map out the structure and layout of an app.
Type: software
Description: pdf-notes is a free, open source software for annotating PDF files on Windows, Mac and Linux. It allows adding text notes, highlights, drawings and stamps to PDFs.
Type: software
Pricing: Open Source