iAnnotate vs Opal
A side-by-side look at iAnnotate and Opal. For an in-depth review of either product, follow the links below.
iAnnotate
Office & Productivity
iAnnotate is a PDF annotation tool for Mac that allows users to easily add text notes, highlights, drawings, and stamps to PDF documents. It has an intuitive interface and useful collaboration features for sharing annotations.
annotationcollaborationpdfhighlightsnotes
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
Related Comparisons
Xodo
MarginNote
PDF Expert
Orgzly
Atril
Dashword