PPTCompressGet a PDF under the attachment limit
- Upload the PDF above.
- Choose the Email preset (120 DPI). It is made for files that are read on screen.
- Check the estimated size. If it is still too large, lower the resolution under Advanced to around 96 DPI.
- Compress, download and attach.
Common attachment limits
| Service | Attachment limit |
|---|---|
| Gmail | 25 MB |
| Outlook.com | 20 MB |
| Many company mail servers | often 10 MB or less |
Email encoding adds about a third to the size of an attachment on the way, which is why a file a little under the limit can still bounce. Aim comfortably below it.
Questions
Why does my PDF bounce even though it is under 25 MB?
Attachments are encoded for sending, which makes them roughly a third larger. A 20 MB file can become about 27 MB in transit.
Will the PDF still look fine?
On screen, yes. The Email preset keeps images at 120 DPI, which looks sharp on laptops and phones. For printing, choose Print instead.
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.