Penflip vs SumatraPDF
A side-by-side look at Penflip and SumatraPDF. For an in-depth review of either product, follow the links below.
Penflip
Online Services
Penflip is an online collaborative writing and editing platform designed for authors. It allows multiple people to work on book manuscripts or other writing projects together by providing tools for commenting, version history, task management, and document sharing.
collaborationeditingwritingversion-control
SumatraPDF
Office & Productivity
SumatraPDF is a free and open-source PDF, eBook, XPS, DjVu, CHM, Comic Book (CBZ and CBR) reader for Windows. It is lightweight, customizable, and supports many advanced PDF features.
pdfebookreaderlightweightopensource
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