Compress PDF for Email — Free, Instant, No Watermarks
Sending a large PDF by email? Our free compressor shrinks PDF file sizes to email-friendly sizes in seconds — no uploads, no watermarks, no account needed.
Start Redacting for Free →Email Attachment Limits by Provider
Sending a large PDF by email? Our free compressor shrinks PDF file sizes to email-friendly sizes in seconds — no uploads, no watermarks, no account needed. Works with Gmail, Outlook, Apple Mail, and any email provider. Your PDF is processed locally in your browser and never transmitted to any server.
- Gmail: 25MB attachment limit — compress large PDFs before attaching
- Outlook: 20MB limit for most accounts — scanned PDFs often exceed this
- Apple Mail: attachments over 20MB may be sent via iCloud Mail Drop
- Corporate email servers often impose stricter limits of 5–10MB per attachment
How to Redact — 3 Simple Steps
Select Your PDF
Open your PDF in our tool. It loads locally — never sent to any server.
Compress for Email
Click Compress PDF. Our tool reduces image resolution and optimises streams to minimise email attachment size.
Attach and Send
Download the compressed PDF and attach it to your email. Scanned documents typically reduce by 60–80%.
Key Features
🔒 Your Files Never Leave Your Device
Unlike tools that upload your PDFs to remote servers, our tool processes everything locally in your browser using WebAssembly. No server ever sees your documents — not even us. This makes it one of the most private PDF tools available, completely free.
Frequently Asked Questions
How small will my PDF be after compression?
Scanned PDFs typically compress 60–80%, making a 10MB file become 2–4MB. Text-only PDFs compress less but are already small.
Will the recipient see a lower quality PDF?
Text and vector graphics are unaffected. Embedded images may soften slightly at high compression — usually imperceptible in scanned documents.
Does this work for Gmail, Outlook, and Apple Mail?
Yes — the output is a standard PDF compatible with any email client and device.
Are there any watermarks on the compressed PDF?
No watermarks on any page, ever. Completely free with no hidden limitations.
Ready to Redact Your PDF?
Free, instant, private — no account or software required.
Start Redacting for Free →