Aspose.Slides is a .NET component to read, write, and modify a PowerPoint document without using MS PowerPoint. It supports files from PowerPoint versions from 97-2007 and all three PowerPoint formats: PPT, POT, and PPS. It lets you create, access, copy, clone, edit, and delete slides in your presentations. It can save PowerPoint slides into PDF format and also save presentations in SVG format, Streams or Images.
PRISCILA is a simple SDL/OpenGL presentation application with a keyboard-based WYSIWYG built-in editor. Its aim is to provide a vi-like tool to write presentations. The current editor is still very rudimentary and several editing actions have to be done by editing text files. Each presentation slide is a real 3D scene composed of several items. Special effects can be applied to modify item appearance, and actions can be added to modify items' behavior. 3D objects, effects, and actions are GNU/EDMA objects, which automatically provides plug-in support, easy updates, and more. An RFComm Bluetooth interface is included for remotely controlling a presentation from a mobile device.