Okular vs Opal
A side-by-side look at Okular and Opal. For an in-depth review of either product, follow the links below.
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
Opal
Office & Productivity
Opal is an open-source alternative to Microsoft OneNote for taking notes and organizing information. It allows users to create digital notebooks to capture text, drawings, and web clippings.
notesorganizationopensource