Twenty Prompts That Get Real Answers Out of a PDF

Chatting with a document is only as good as the question. 'Summarise this' produces a bland paragraph you could have guessed. Specific, structured prompts produce output you can act on. Here are the ones that consistently earn their keep, grouped by what you are trying to do.

Understanding a document fast

• 'In five bullets, what is this document asking me to do or decide?'
• 'What would a sceptical reader push back on, and where in the document is the weakest support?'
• 'List every claim in this document that is stated without evidence, with page numbers.'
• 'Explain the core argument to someone with no background in this field, in under 150 words.'
• 'What is deliberately not addressed in this document?'

Contracts and agreements

• 'List every obligation that falls on me, with the clause number and deadline.'
• 'Which clauses shift risk, cap liability, or create automatic renewal? Quote them exactly.'
• 'What happens if I terminate early? Quote the relevant text.'
• 'Compare the termination rights of each party — is the arrangement symmetric?'
• 'Identify any defined term that is used but never defined.'

Studying

• 'Write ten exam-style questions a lecturer would ask on this chapter, then answer them with page citations.'
• 'What are the three concepts here that students most commonly confuse, and how do they differ?'
• 'Turn the key definitions into flashcard pairs: term on one side, one-sentence definition on the other.'
• 'Which parts of this chapter depend on material from earlier chapters I should revise first?'

Reports and data

• 'Extract every number that appears with a unit or currency, and say what it measures.'
• 'What changed compared to the previous period, and by how much?'
• 'List every forward-looking statement and flag which are quantified.'
• 'Where does the document use a percentage without stating the base?'

Two prompt habits that improve everything

Always ask for citations

Adding 'quote the exact text and give the page number' to any prompt changes the output materially. It forces the answer to be grounded in the document rather than in the model's general knowledge, and it gives you a two-second way to verify each claim.

Ask for the shape of the answer

'As a table with columns X, Y, Z' or 'as a numbered list, one line each' produces output you can paste straight into a spreadsheet or a memo. Unstructured prose is almost always the wrong format for a working document.

What to stay sceptical about

Ask for something that is not in the document and you will often get a confident answer anyway. Test any new document with one question you know it does not answer. If the model invents something, tighten your prompts with 'if the document does not say, reply: not stated'. That single instruction removes most of the risk.