qpdfview uses Poppler for PDF support, libspectre for PS support, DjVuLibre for DjVu support, CUPS for printing support and the Qt toolkit for its interface.

Current features include:
* Outline, properties and thumbnail panes.
* Scale, rotate and fit.
* Fullscreen and presentation views.
* Continuous and multiple-page layouts.
* Search for text.
* Configurable tool bars.
* Configurable keyboard shortcuts.
* Persistent per-file settings.
* SyncTeX support.
* Rudimentary annotation support.
* Rudimentary form support.
* Support for PostScript and DjVu documents.