3Cols vs Okular
A side-by-side look at 3Cols and Okular. 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.
organizationproductivitybrowser-extension
Okular
Office & Productivity
Okular is a versatile document viewer software for KDE. It supports viewing PDFs, EPUBs, ODT, and other document formats. Okular allows annotating, highlighting, commenting on documents as well as filling forms.
pdfepubodtannotatinghighlightingcommentingform-filling