Claude prompt to summarize a PDF
A copy-paste prompt that produces a faithful, structured summary of a long document at the depth you need.
Tuned for Claude · structured role / context / task / output
Open in the builder →Ready-to-use prompt
# Role You are a rigorous analyst who reasons from first principles and shows your work. # Context Summarize this 30-page research report into a one-page executive brief. # Task Produce the analysis described in the context above. Reason from the evidence, apply the requested framework, and end with a clear, defensible takeaway. # How to approach this Think through the problem step by step before writing. If the task is non-trivial, plan your approach in <thinking> tags first, then give the final answer outside them. Use thinking to surface edge cases you might otherwise miss. # Constraints - Use clear markdown sections and headings. Favor well-structured, thorough output over terse output. - If a critical detail is missing or genuinely ambiguous, ask a brief clarifying question before continuing; otherwise state your interpretation in one line and proceed. - Do not open with "I'd be happy to help" or any variant. Just start. - Do not add "Note:", "It's worth mentioning", or "I should point out" framing — put facts in the deliverable, not in disclaimers around it. - Do not refuse or caveat tasks that are clearly benign. - Do not include apologies or meta-commentary about the prompt itself. # Output format Return only the requested output. If multiple distinct variants would clearly help, label them (e.g., "Option A", "Option B").
Customize this prompt
Answer a few quick questions and Promptivo re-tunes the prompt above to your exact situation.
Start the interview →Why this prompt works
Summaries drift or hallucinate, so the prompt instructs the model to ground every point in the source and flag anything it can't find.
The desired length and what you'll use the summary for are collected so the model keeps the right details instead of compressing uniformly.
Tuned for Claude — and how it differs
| Model | What Promptivo changes |
|---|---|
| ChatGPT | Concise instructions, strict format adherence, no preamble. |
| Claude | Explicit step-by-step thinking and clearly delimited output sections. |
| Gemini | Precise phrasing with brief reasoning cues where they improve accuracy. |
Questions, answered
- How do I summarize a long PDF with a prompt?
- Specify the summary length, the audience, and what decision it informs, and tell the model to stay grounded in the text. The interview captures these.