Compress PDF Under 25MB Free
Shrink PDFs to fit under the 25 MB email attachment limit. Local browser compression with no upload.
Compress PDF NowHow to Use This Tool
- 1Upload the PDF that needs to be emailed.
- 2Choose a compression strength to get under 25 MB.
- 3Download the compressed file and attach it to your email.
Reality check
Target sizes are best-effort. Scanned PDFs usually compress more; already optimized text PDFs may shrink only a little. Always verify file size and readability before upload.
Why use sotool?
Gmail-Ready
Stay safely under Gmail and Outlook attachment limits with room for encoding overhead.
No Upload
Your document is compressed locally before it ever reaches an email server.
No Signup Needed
Start using the tool immediately without creating an account or logging in.
Browser-Based
Works on Windows, Mac, Linux, Android, and iOS as long as you have a modern browser.
Frequently Asked Questions
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