Compress PDF for Dust

Dust limits PDF and data file uploads to 50MB per file during conversations. Compress your PDF here before uploading to avoid errors.

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

📄

Drop your PDF here to fix upload errors

or click to select file — PDF only

Target size (optional)

targeting 50 MB

⚡ Dust File Size Limits (Quick Fix)

•Dust limits PDF and data file uploads to 50MB per file during conversations.
•Dust image uploads are limited to 5MB per file.
•Dust code files, CSV, TSV, and XLSX files share the same 50MB per-file limit as PDFs.
•The 50MB limit applies to files uploaded during conversations for analysis or data processing in Dust.

👉 Fix: Compress your file below 50 MB using the tool above.

About this tool

Dust's 50MB limit applies to data files (PDF, DOC, TXT, JSON) uploaded during conversations for analysis or data processing. Images are capped at 5MB. CSV, TSV, and XLSX files share the same 50MB limit. Scanned PDFs and image-heavy documents are the most common cause of exceeding this limit.

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

→Dust limits PDF and data file uploads to 50MB per file during conversations.Dust Docs ↗
→Dust image uploads are limited to 5MB per file.Dust Docs ↗
→Dust code files, CSV, TSV, and XLSX files share the same 50MB per-file limit as PDFs.Dust Docs ↗
→The 50MB limit applies to files uploaded during conversations for analysis or data processing in Dust.Dust Docs ↗

PDF upload failing in ChatGPT, Gemini, or Claude? Compress it instantly — free, browser-based, no file sent to any server.

PDF Too Large for Dust? Fix 50MB Limit Instantly

Dust rejecting your PDF? Fix the 50MB data file limit instantly — compress and upload without errors.

Dust PDF Upload Failed? Fix File Size Error Now

Dust upload failing during a conversation? Fix the 50MB PDF and data file limit instantly.

❓ Frequently Asked Questions

What is the PDF size limit for Dust?+

50MB per file for PDFs and other data files (DOC, TXT, JSON) uploaded during Dust conversations.Source: Dust Docs ↗

What are the file size limits in Dust?+

Data files (PDF, DOC, TXT, JSON): 50MB. Images: 5MB. Code files: 50MB. Delimited files (CSV, TSV, XLSX): 50MB.Source: Dust Docs ↗

What should I do if my PDF exceeds the Dust 50MB limit?+

Compress the PDF below 50MB using the tool above. For very long documents, splitting into chapters also improves processing speed.Source: Dust Docs ↗

Does compressing a PDF affect Dust's AI analysis?+

No. Dust reads the text layer of the PDF. Compressing image quality reduces file size without affecting the text content used for AI analysis and data processing.Source: Dust Docs ↗

Does the Dust 50MB limit apply to all file types?+

The 50MB limit applies to data files (PDF, DOC, TXT, JSON), code files, and delimited files (CSV, TSV, XLSX). Images have a stricter 5MB limit.Source: Dust Docs ↗

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

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