3Cols vs PDF Stacks
A side-by-side look at 3Cols and PDF Stacks. For an in-depth review of either product, follow the links below.
3Cols
Productivity
3Cols is a free and open-source browser extension for Google Chrome that allows you to view three columns on many websites. It helps increase productivity when researching, reading articles, checking emails, online shopping, and more.
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PDF Stacks
Office & Productivity
PDF Stacks is a PDF management software that allows users to easily merge, split, organize and manage PDF documents. It has an intuitive interface and useful features like OCR, annotation tools, password protection and more.
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