100MB is the upload limit for Google Gemini and several research and professional platforms. Compress your PDF here before uploading.
🔒 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 100 MB
⚡ File Size Limits (Quick Fix)
•Google Gemini caps PDF uploads at 100MB per file.
•SciSpace recommends keeping PDFs under 100MB for reliable Chat with PDF and research analysis.
•Large scanned PDFs with colour images are the most common cause of files exceeding 100MB.
👉 Fix: Compress your file below 100 MB using the tool above.
About this tool
Gemini caps PDF uploads at 100MB. SciSpace recommends files under 100MB for reliable analysis. LinkedIn document posts also perform best under this threshold.
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
→Google Gemini caps PDF uploads at 100MB per file.Google Help ↗
→SciSpace recommends keeping PDFs under 100MB for reliable Chat with PDF and research analysis.SciSpace ↗
→Large scanned PDFs with colour images are the most common cause of files exceeding 100MB.
Google Gemini allows PDF uploads up to 100MB. Files over this limit will be rejected at upload.Source: Google Help ↗
Why is my PDF over 100MB?+
PDFs over 100MB almost always contain high-resolution scanned pages or embedded colour images. Compressing the embedded images reduces file size significantly.Source: Google Help ↗
Will compressing to 100MB affect text quality?+
No. Text in PDFs is vector-based and is not affected by compression. Only embedded images are reduced in quality.Source: Google Help ↗
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