Compress PDF for Email

Email attachment limits vary by provider. Compress your PDF, check the output size, then attach and send as normal.

What size should a PDF be for email?
Gmail allows attachments up to 25MB. Other providers set their own limits — many are in the 10–25MB range, but check your provider's settings to be sure. For broad compatibility, a file under 5MB is easier to download on mobile.
Which compression level should I choose for email?
Use Balanced for a good mix of quality and size. If the file is still too large, try Maximum. Use High Quality when the recipient needs to print or zoom in on fine details.
Why is my PDF too large to email?
PDFs with high-resolution photos or scanned pages can be very large. Our compressor reduces image resolution and removes unnecessary data, which typically results in a noticeably smaller file.
Is it free?
Yes, completely free. No sign-up, no watermark, no subscription.
Are my files uploaded to a server?
No. All compression happens locally in your browser. Your PDF never leaves your device.