Commentum vs Zhizhi Reader
A side-by-side look at Commentum and Zhizhi Reader. For an in-depth review of either product, follow the links below.
Commentum
Online Services
Commentum is an open-source commenting system for websites. It allows site owners to easily add a commenting system to their site to facilitate user discussions. Key features include comment moderation tools, anti-spam measures, and customization options.
commentingdiscussionmoderationantispam
Zhizhi Reader
Education & Reference
Zhizhi Reader is a free and open source document reader and annotation tool. It supports PDF, EPUB, MOBI, AZW, and other common file formats, allowing users to view, annotate, highlight, and manage documents and ebooks.
document-readerpdf-readerebook-readeropen-source
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