Compress PDF for Email

Most email providers cap attachments at 20–25MB. Compress your PDF here so it goes through without bouncing.

🔒 Files never leave your device⚡ Instant processing in browser💸 100% free — no signup

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Drop your PDF here to fix upload errors

or click to select file — PDF only

Target size (optional)

targeting 20 MB

⚡ Email File Size Limits (Quick Fix)

•Gmail allows attachments up to 25MB per email.
•Outlook.com and Hotmail cap attachments at 20MB.
•Yahoo Mail allows attachments up to 25MB.
•If a Gmail attachment exceeds 25MB, Gmail automatically converts it to a Google Drive link.
•Attachments are base64-encoded in transit, which adds ~33% overhead — a 25MB file becomes ~33MB on the wire. Email servers measure the encoded size.

👉 Fix: Compress your file below 20 MB using the tool above.

About this tool

Gmail allows 25MB, Outlook 20MB, Yahoo 25MB. Compressing to under 20MB ensures delivery on all platforms.

How to use this tool

Select or drag and drop your file into the tool above.
Adjust the settings or target size as needed for your specific requirement.
Wait a moment while your file is processed directly in your browser.
Download the final file safely to your device.

💡 Good to know

→Gmail allows attachments up to 25MB per email.Google Help ↗
→Outlook.com and Hotmail cap attachments at 20MB.Microsoft Support ↗
→Yahoo Mail allows attachments up to 25MB.Yahoo Help ↗
→If a Gmail attachment exceeds 25MB, Gmail automatically converts it to a Google Drive link.Google Help ↗
→Attachments are base64-encoded in transit, which adds ~33% overhead — a 25MB file becomes ~33MB on the wire. Email servers measure the encoded size.

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❓ Frequently Asked Questions

What is the maximum PDF size I can send via email?+

Gmail and Yahoo Mail allow up to 25MB. Outlook.com allows up to 20MB. To be safe across all platforms, keep attachments under 20MB.Source: Google Help ↗

What happens if my PDF is too large for Gmail?+

Gmail automatically removes the attachment and inserts a Google Drive link in its place. The recipient can download it from Drive.Source: Google Help ↗

Does compressing a PDF affect its content?+

No. Text, fonts, and page layout are preserved. Only embedded image quality may be slightly reduced.Source: Google Help ↗

What should I do if I can't compress the PDF small enough?+

Use Google Drive, OneDrive, or Dropbox to share a link instead of attaching the file directly.Source: Google Help ↗

🔒 Files stay on device·🆓 Free forever·📵 No signup required

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