PDFsam
PDFsam – free simple and open source cross platform software for splitting and merging PDF files
PDFsam – free simple and open source cross platform software for splitting and merging PDF files
qpdfview – free and open source software for viewing PDF documents with tab support
Okular is a free and open source, multi-platform document viewer that supports a variety of formats
Evince is a free and open source program for viewing PDF documents, comic books, and others.
Choqok is a free and open source microblogging client by the KDE community
Cawbird is a free and open source, modern and lightweight Twitter client
Makagiga is a free and open source multi-platform simple software for creating to-do lists, notes, and reading RSS feeds
Purple Task is a free and open source simple software for managing tasks
OpenTodoList is a free, simple, cross-platform, open source software for creating notes and task lists