PPTCompressDirect compression for PowerPoint 97–2003 (.ppt)
Most online compressors cannot handle old .ppt files directly, or force you to convert them to modern .pptx. PPTCompress reads binary Compound File (OLE) presentations directly, parsing streams inside the archive.
Every photo and diagram is resized to the dimensions of the box it actually fills on the slide, and uncompressed bitmap graphics are converted to compact JPEG or PNG.
Keep your original format
When you compress a .ppt, you download a .ppt. Text, formatting, animations, slide transitions, and speaker notes are preserved untouched.
Note: duplicate picture deduplication and orphan picture deletion are available for modern .pptx files only. Vector drawings stored as metafiles (EMF/WMF) are left untouched.
| Preset | Image resolution | JPEG quality | Good for |
|---|---|---|---|
| 120 DPI | 72 | Attachments, sharing, viewing on screen | |
| Balanced | 150 DPI | 80 | Most files. Sharp on any laptop or projector |
| 220 DPI | 88 | Office printing and handouts | |
| Archive | 300 DPI | 92 | Keeping a high quality master that is still smaller |
Resolution and quality can also be set by hand under Advanced.
Questions
Can I compress a .ppt file without converting to .pptx?
Yes. You download the exact same .ppt binary format you uploaded, fully compatible with PowerPoint 97 through 2003.
Will my animations, transitions, and notes stay intact?
Yes. Only embedded images are resized. Slides, text, formatting, macros, transitions, and speaker notes remain untouched.
Are videos compressed?
No. Only image media is recompressed. Embedded video streams remain unaltered.
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.