SweetcraftAI PDF chat
Upload a PDF and ask questions about it — free, no API key, no sign-up. The PDF is parsed in your browser and never uploaded; only the extracted text and your question go to the AI. Or bring your own key for unlimited runs.
About this tool
Instead of skimming a long PDF yourself, this tool lets you ask it questions. The file — up to 20 MB and 500 pages — is parsed locally in your browser with PDF.js, and when you ask something, the extracted text (capped at 100,000 characters) plus your question is sent to the AI provider behind your own key. Contracts, manuals, research papers and reports are the typical candidates.
Two boundaries follow from how it works. The answers come from the document’s embedded text, so a scanned PDF with no text layer cannot be read — this tool performs no OCR. And very long documents are represented by the text that fits the cap, so answers are strongest for documents of moderate length.
How to use AI PDF chat
- Choose a PDF (up to 20 MB). It is parsed locally — the file never leaves your device.
- Ask questions about the document — the free channel needs no API key (a daily free allowance is included); only the extracted text goes to the AI.
- Want no daily limit? Add your own provider key in the key panel — it is stored only in this browser.
Keep the original files and inspect the exported result before publishing or sharing it.
Frequently asked questions
Is it really free?
Yes — the free channel includes a daily allowance of runs per visitor, no key and no sign-up. Your own key removes the limit.
How does PDF chat work?
Your PDF is parsed in the browser with PDF.js. When you ask a question, the extracted text (up to 100,000 characters) plus your question is sent to the AI — through Sweetcraft's proxy on the free channel, or directly to your provider with your own key.
Does the PDF leave my browser?
No. The file is parsed locally and never uploaded; only the extracted text is sent, as part of your question.
What about scanned PDFs?
Scanned PDFs contain no embedded text, and this tool does not do OCR itself. Run the scan through OCR PDF (/ocr-pdf/) first — it returns a searchable PDF whose text this chat can read.
How large can the PDF be?
Up to 20 MB and 500 pages. Extracted text sent to the AI is capped at 100,000 characters.