Adobe Acrobat Reader DC is the industry standard for viewing, printing, signing and commenting on PDF documents. Developed by Adobe Systems
License: Freemium
Adobe Acrobat Reader DC is a feature-rich tool ideal for professionals needing extensive PDF editing and collaboration options, while Sumatra PDF is a lightweight, open-source alternative best suited for users who need a fast and simple PDF viewer without the advanced functionalities. The choice depends on the user's needs: Adobe for comprehensive features, and Sumatra for simplicity and speed.