Image Export converts PowerPoint slides to high-quality images.
PPT2HTML exports HTML even from PowerPoint 2010 and 2013, gives you full control of PowerPoint HTML output, helps meet Section 508 accessibility requirements
Merge Excel data into PowerPoint presentations to create certificates, awards presentations, personalized presentations and more
Resize your presentations quickly and without distortion
Language Selector switches the text in your presentation from one language to another
FixLinks prevents broken links when you distribute PowerPoint presentations
Shape Styles brings styles to PowerPoint. Apply complex formatting with a single click.
Prep4PDF preserves interactivity in PowerPoint presentations when you convert to PDF
PowerPoint newsgroup regular Glen Millar has this series of tutorials that teach some very clever tricks for creating/simulating 3D graphics in PowerPoint.
If you're looking for more of a one-click solution, have a look at Perspector, a 3D add-in for PowerPoint
Deep Publish from Right Hemisphere
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