Compress PDF for Email (Gmail 25 MB, Outlook 20 MB)
Free, private, no upload. Your files never leave your device.
Advanced settings
- 0 bytes uploaded
- No sign-up
- No watermark
- No daily limits
- Works offline
Popular sizes
Gmail accepts attachments up to 25 MB and Outlook.com up to 20 MB; bigger files are turned into a cloud link or rejected. The target on this page is preset to 20 MB, so the result fits both. Scanned contracts and photo-heavy reports shrink the most. The compression runs in your browser, which matters for documents you would not want to hand to a random website.
- Drop your PDF in the box above. The target is already 20 MB.
- Need it even smaller? Open Advanced settings and choose “Strong”.
- Click Convert and check the new size shown under the file.
- Download the compressed PDF and attach it to your email.
Why convert in your browser?
Most online converters send your files to their servers and promise to delete them later. FileFlip does the work on your own device instead, so there is nothing to delete: you can even switch on airplane mode after the page loads and it keeps working. See the privacy proof
Frequently asked questions
What are the Gmail and Outlook limits?
Gmail allows 25 MB per email and Outlook.com 20 MB, including all attachments together.
Will the text stay selectable?
Compression re-renders pages as images, so text is no longer selectable; keep the original for editing.
Is my PDF uploaded?
No. It is compressed locally in your browser.