Compress PDF for AI Upload
AI tools like ChatGPT, Gemini, and Claude all have PDF upload limits. Compress your PDF here to ensure fast, error-free processing.
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Drop your PDF here
or click to upload ā PDF only
Target size (optional)
or leave blank to compress as much as possible
š” Good to know
- āChatGPT allows PDF uploads up to 512MB per file, with a 2 million token limit for text-based files.OpenAI Help ā
- āScanned PDFs (image-based) consume far more tokens than text-based PDFs of the same page count.
- āCompressing a scanned PDF reduces image resolution, which lowers file size and speeds up AI processing without affecting the readable text.
- āSplitting a large PDF into topic-specific sections improves AI retrieval accuracy ā the model finds relevant content faster.
ā Frequently Asked Questions
Why should I compress a PDF before uploading to an AI tool?+
Smaller files upload faster, process more reliably, and use fewer tokens. Image-heavy PDFs are especially worth compressing before AI upload.
What is ChatGPT's PDF size limit?+
512MB per file, with a 2 million token cap for text content.
Does compressing a PDF affect what the AI can read?+
No. AI tools read the text layer of a PDF, not the images. Compressing image quality does not affect the text the AI processes.
Should I split or compress a large PDF for AI upload?+
Both help. Compressing reduces file size. Splitting into topic-specific sections improves the AI's ability to find and cite the right information.