Compress Large PDFs to Email Size Limits
Reduce large PDF files under 10MB or 25MB limits for Gmail and Outlook attachments. Fast browser compression with zero uploads and full privacy.
No signup required • 100% browser-based • Zero uploads
Key Benefits
Frequently Asked Questions
What are typical email attachment size limits?
Gmail: 25MB, Outlook: 20MB, Yahoo: 25MB, ProtonMail: 25MB. Many corporate email systems have even stricter limits (5-10MB).
Will recipients be able to open compressed PDFs?
Yes! Compression doesn't change the file format - it just optimizes the content. Any PDF reader can open compressed files.
What if my file is still too large?
Options: 1) Use maximum compression, 2) Split into multiple smaller files, 3) Use cloud storage links (Google Drive, Dropbox) instead of attachments.
How much can I reduce the file size?
Typically 40-70% reduction depending on your PDF content. Documents with many images compress more than text-only files.
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Process your files instantly with our free, secure, browser-based tool.
Compress for Email