MarkReader vs Openfire
A side-by-side look at MarkReader and Openfire. For an in-depth review of either product, follow the links below.
MarkReader
Office & Productivity
MarkReader is a free, open-source document viewer and annotation tool. It allows users to view PDFs, Word docs, PPTs and more while adding highlights, notes, bookmarks and annotations. Useful for reviewing documents, collaborating with others, and organizing research.
pdfviewerannotationhighlightsnotesbookmarkscollaborationresearch
Openfire
Social & Communications
Openfire is an open source instant messaging and chat server. It uses the XMPP protocol and can be configured to work with many chat clients such as Spark, Pidgin, and Web clients. It is written in Java and has features like group chat, messaging archive, and plugins.
xmppchat-serveropen-sourcejava
Related Comparisons
Matrix.org
MongooseIM platform
FreeConference.com
Prosody
ejabberd SaaS
Bopup Communication Server