Compress PDF for Email Attachment (Under 25MB)
Email won't send your PDF? Most providers cap attachments at 25MB. Here's the fastest fix.
Email attachment limits are the single biggest reason PDFs get bounced back. Gmail and Outlook block files over 25MB. Yahoo caps at 25MB. Some corporate Exchange servers stop you at 10MB. The fix is browser-based compression — no upload, no waiting, no account.
Open PDF CompressorStep-by-step
Open the PDF Compressor
Click the button below to launch the tool. Nothing to install or sign up for.
Drop your PDF in
Drag your file onto the upload zone. Everything processes locally — your document never touches a server.
Choose 'High Compression' for email
For email attachments, pick the highest compression setting. Image quality drops slightly, but text stays crisp and file size drops by 60-80%.
Download and attach
Save the compressed PDF and attach it to your email. It will now fit under the 25MB limit.
Ready to try it?
Reduce PDF file size instantly. Free, no signup, runs in your browser.
Open PDF CompressorFrequently asked questions
Why is my PDF too big for email in the first place?
Usually because it contains high-resolution images, scanned pages, or embedded fonts. A 50-page report with photos can easily be 40-100MB. Compression removes unnecessary image data while keeping text sharp.
Will the recipient be able to open it normally?
Yes. A compressed PDF is still a standard PDF file — it opens in every PDF viewer, browser, and mobile app the same as the original.
What if my PDF is still too big after compression?
Use our PDF Splitter to break it into two parts and send them in separate emails. Or upload to a cloud share like Google Drive and email the link instead.
Is there a Gmail-specific size limit?
Gmail allows attachments up to 25MB. Files larger than that auto-upload to Google Drive and Gmail sends a share link. Most recipients prefer a direct attachment, so compression is the better path.
Related use cases
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