PPTCompressWhere PPTCompress does better
- PowerPoint in, PowerPoint out. No round trip through PDF. Smallpdf's own guide compresses the deck as a PDF, then exports it back to .pptx.
- Animations and media stay. Nothing is converted, so animations, transitions, embedded media and speaker notes are kept. Smallpdf's guide tells you to keep the source deck if you need to restore animations or media.
- Old .ppt stays .ppt. A PowerPoint 97-2003 deck comes back in the same format. Smallpdf's route exports a .pptx.
- Every quality setting is free. Pick the resolution and JPEG quality on the free plan. On Smallpdf, the Moderate and Strong compression levels are Pro features.
- Each picture sized to its box. Pictures are resized to the space they actually fill on the slide, with an estimate and a before and after preview before anything is written.
- Never bigger than the original. The result is checked; if it is not smaller, you are told and keep your original.
Side by side
| PPTCompress | Smallpdf | |
|---|---|---|
| Compress a .pptx without converting to PDF | Yes | No: PDF round trip in its guide |
| Animations and transitions | Kept | May need restoring from the source deck |
| Old .ppt output format | .ppt | .pptx |
| Stronger compression on the free plan | Yes | Moderate and Strong are Pro |
| Free limits | Free: 3 files a day, up to 30 MB each, no sign-up | "Usage limits may apply" |
| PDF suite, e-signatures, many languages | No | Yes |
When Smallpdf may suit you better
Smallpdf is a broad PDF suite with editing, e-signatures and apps, in many more languages. If your goal is a PDF, or you need those tools, it may suit you better. For a smaller PowerPoint that stays a PowerPoint, PPTCompress avoids the conversion.
Checked on 13 October 2026 against Smallpdf's public pages, linked under Sources. Smallpdf is a trademark of its respective owner. PPTCompress is not affiliated with, endorsed by or sponsored by Smallpdf. Spotted something out of date? Write to [email protected] and we will correct it.
Sources
Questions
Does Smallpdf compress PowerPoint directly?
Its guide compresses the deck as a PDF and then exports it back to PowerPoint. PPTCompress compresses the PowerPoint file without converting it.
Will converting through PDF change my slides?
It can. Smallpdf's own guide advises keeping the source deck if you need to restore animations or media.
Is it free?
Yes. There is no account, no watermark and no sign up.
What happens to my files?
They are processed on our server and deleted within 60 minutes, along with the compressed copy. We do not look at them, keep them, or use them for anything else. Your original on your own computer is never changed; you download a new file.
How large a file can I upload?
Up to 30 MB free / 95 MB paid per file.
Will the file ever get bigger?
No. If the compressed result would not be smaller, you are told and you simply keep your original.