Compress PDF for Email.

Fix the 'File too large to attach' error. Shrink PDFs to bypass Gmail and Outlook's 25MB limits.

How do I make a PDF smaller to email it?

Upload your PDF to a local, browser-based compressor. The tool will automatically optimize images and strip hidden metadata to reduce the file size below the standard 25MB email attachment limit.

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Why use a dedicated Email tool?

General purpose tools often fail when you need to meet strict, platform-specific requirements. By using our pre-configured engine for Email, you ensure your file meets exact dimensions, quality limits, and format specifications automatically.

Zero-Upload Privacy: Unlike other cloud converters, FileCircle utilizes WebAssembly and HTML5 Canvas to process your files directly inside your browser.

Best of all, because FileCircle relies entirely on your browser's local processing power, your files are never uploaded to a cloud server. You get enterprise-grade optimization with 100% absolute privacy.

Email Provider	Attachment Limit
Gmail	25 MB
Outlook / Hotmail	20 MB
Yahoo Mail	25 MB
Apple Mail	20 MB

How to shrink a PDF for email

Ensure your documents reach the recipient.

Select PDF

Drop the oversized file into the tool.

Check Size

Ensure the estimate is below 20MB.

Attach

Download the optimized file and attach it directly.

Expert Guides

How to Bypass the 25MB Gmail and Outlook Attachment Limit

Stop getting 'File too large' errors. Learn how to compress massive PDFs and presentations to send them via email.

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Learn why your beautiful Canva resume is being rejected by Workday and Greenhouse, and how to fix it.

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Frequently Asked Questions

What is the standard attachment limit for Gmail and Outlook?

Gmail restricts attachments to a maximum of 25MB per email, while Microsoft Outlook typically limits file attachments to 20MB. Aiming for under 20MB guarantees universal delivery.

Is this secure for confidential business emails?

Yes, files are processed directly in your device's RAM. They are never sent to a cloud server, ensuring your proprietary business data remains under your control.

What if I need to send multiple large PDFs?

If combining files still exceeds the limit, you have two options: use our Split PDF tool to break the document into smaller chapters, or upload the file to a cloud drive (like Google Drive) and send a link instead.

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