I am developing a software, called PDFArticle, which aim is to provide a reading and working environment for mathematicians. It takes math articles in the PDF format, and displays the article together with the sequence of theorems or bibliography, as shown in the picture.
The SourceForge webpage is http://sourceforge.net/projects/pdfarticle/
Some features are :
- authors management
- label management
PdfArticle is currently only available for Linux.