Reduce PDF Size for Email Attachments
Compress PDF under 25MB for Gmail, Outlook, and Yahoo email attachments. Free browser-based tool — your file never leaves your device.
Open Free Tool →About This Tool
Gmail allows attachments up to 25MB, Outlook up to 20MB, and Yahoo Mail up to 25MB. If your PDF exceeds these limits, this tool reduces the file size so you can send it as a direct attachment without using cloud storage links.
How to Use
- Click "Open Tool" above.
- Select the "Email (under 25 MB)" target.
- Upload your PDF.
- Compress and download.
100% Private — Your files are never uploaded to any server. All processing runs locally in your browser using JavaScript.
Frequently Asked Questions
What is Gmail's attachment size limit?
Gmail supports attachments up to 25MB. Files larger than this must be shared via Google Drive.
Will the compressed PDF open correctly in email?
Yes. The output is a standard PDF compatible with all email clients and PDF readers.
Does compression work on scanned documents?
Yes, though very large scanned files may need re-scanning at lower DPI for dramatic reductions.