Getting a file too large error uploading a PDF to Dust?
Compress your PDF below 50MB instantly using the tool below — no account needed.
🔒 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.
•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 PDFs and data files uploaded during conversations. Scanned PDFs and image-heavy documents are the most common cause of exceeding this limit. Compressing reduces embedded image quality without affecting the text Dust uses for AI analysis.
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 ↗
→The 50MB limit applies to files uploaded during conversations for analysis or data processing in Dust.Dust Docs ↗
Dust caps data file uploads at 50MB per file. Scanned PDFs and documents with embedded images commonly exceed this. Compress your PDF below 50MB using the tool above.Source: Dust Docs ↗
What is the Dust PDF upload limit?+
50MB per file for PDFs and other data files uploaded during Dust conversations.Source: Dust Docs ↗
How do I fix the Dust file too large error?+
Compress your PDF below 50MB using the tool above. For very long documents, splitting into chapters also improves AI processing accuracy.Source: Dust Docs ↗
Does compressing a PDF affect Dust AI analysis?+
No. Dust reads the text layer of the PDF. Compressing image quality reduces file size without affecting the text content used for analysis.Source: Dust Docs ↗
🔒 Files stay on device·🆓 Free forever·📵 No signup required