PPTBox is an online document-conversion service focused on making PowerPoint presentations easier to share and revise. Its browser-based tools convert .ppt and .pptx files into PDFs, and can also reconstruct PowerPoint slides from PDF files. Users can upload a presentation without installing Microsoft Office or creating an account to begin. Files are rendered in the cloud, and most conversions finish in under a minute, though larger decks may take longer.

The service offers a free plan with up to two conversions per day and a 15 MB file limit; free PDF exports include a watermark. Its Premium plan provides up to 200 daily conversions, a 150 MB limit, API access, and watermark-free exports, at a stated price of $1.95 for seven days followed by $49.90 per month. PPTBox says uploads are encrypted in transit, processed in a sandbox, and automatically deleted within 48 hours. It does not run VBA macros from uploaded presentations. The service also provides pricing information, conversion instructions, FAQs, and a blog.