Tips 1 min read
How to Reduce PDF Size for Email Attachments (Under 25MB)
Fix the "Attachment exceeds maximum size" email error on Gmail, Outlook, and Apple Mail.
Published on October 7, 2026 • by KeepPDF Team
Bypassing Email Attachment Limits
Gmail and Yahoo enforce a strict 25MB attachment limit, while Outlook caps attachments at 20MB. KeepPDF can reduce a 30MB file down to 3MB in seconds without visibly degrading chart or diagram clarity.
Tags:
#email pdf size
#compress email attachment
#gmail pdf limit