Can I ask a PDF questions with AI?

How it works

The tool extracts the document’s text, indexes it for retrieval, and when you ask a question it pulls the relevant passages and generates an answer from them. Good implementations cite the page each answer came from — the citation is what turns a plausible-sounding answer into a verifiable one.

Asking good questions

• Ask about what is in the document: "What is the liquidated damages clause?" beats "Is this a good contract?"
• Ask for locations: "Which section covers payment terms?" returns a pointer, fast.
• Ask for lists: "List every deadline mentioned" works well on structured documents.
• Avoid questions needing outside knowledge — the tool reads your file, not the world.

Scanned PDFs first

Chat reads the text layer. A scanned PDF is a set of images until OCR adds text — nothing to index, nothing to answer from. Run OCR first, then chat.

Privacy

In PDFDepth the file opens locally in the app; the text needed to answer your question is sent for analysis. That is a meaningful difference from tools that require uploading the whole document to a third-party service before you can read it.