Description: PDF-XChange Viewer is a free PDF reader and editor for Windows. It provides basic PDF viewing and annotation features like adding text notes, highlights, shapes, freehand drawing, and more.
Type: software
Pricing: Free
Description: RStudio is an integrated development environment (IDE) for the R programming language. It provides tools for plotting, debugging, workspace management, and other features to make R easier to use.
Type: software
Pricing: Open Source