Compress PDF to 30MB

Claude.ai caps PDF uploads at 30MB. Outlook and AOL Mail also enforce a 20MB limit, making 30MB a practical target for cross-platform sharing.

🔒 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 30 MB

⚡ File Size Limits (Quick Fix)

•Claude.ai enforces a 30MB per-file upload limit for PDFs.
•Files between 25MB and 30MB will send on Gmail (25MB limit) but may still fail on Claude if they exceed 30MB.
•A 30MB PDF typically contains 20–40 pages of scanned content at moderate resolution.

👉 Fix: Compress your file below 30 MB using the tool above.

About this tool

Claude enforces a strict 30MB per-file limit. Files just over this threshold are the most common cause of Claude upload failures. Compressing to under 30MB resolves the error immediately.

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

→Claude.ai enforces a 30MB per-file upload limit for PDFs.Claude Help Center ↗
→Files between 25MB and 30MB will send on Gmail (25MB limit) but may still fail on Claude if they exceed 30MB.
→A 30MB PDF typically contains 20–40 pages of scanned content at moderate resolution.

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Reduce your PDF to under 30MB so it uploads to Claude.ai without errors.

❓ Frequently Asked Questions

What is the Claude PDF upload limit?+

Claude.ai allows PDF uploads up to 30MB per file. Files over this limit are rejected at upload.Source: Claude Help Center ↗

My PDF is 28MB — will it upload to Claude?+

Yes, 28MB is under the 30MB Claude limit. However, compressing slightly further improves upload speed and processing reliability.Source: Claude Help Center ↗

Is 30MB safe for email attachments?+

No. Gmail and Yahoo Mail cap attachments at 25MB, and Outlook at 20MB. A 30MB PDF will be rejected by all major email providers. Compress to under 20MB for email.Source: Claude Help Center ↗

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