PowerPoint Merger is the only Mac OS X program that will merge Powerpoint slides and presentations into one single file. Slides from each Powerpoint file will combine vertically in the order you choose. No more tediouse cutting and pasting. Some highlights:

• Text, graphics, and background are all preserved.
• No programming necessary – just select files, arrange them in the desired order and hit merge.
• Works on Mac OS X 10.4 and higher. Accepts .ppt and .pptx files. Fully compatible with Office 2004 and higher.