Gemini 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 Gemini · 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 Be precise and literal about the requirements. Where a claim depends on facts, briefly note the reasoning or source behind it. # Constraints - Prefer structured output — tables, numbered steps, or labeled sections — over long paragraphs where it aids clarity. - Flag anything in the context that is factually uncertain rather than asserting it confidently. - Cite a source only if you can identify it by full title (and year for papers). Never fabricate a URL. - Maintain consistent formatting across long outputs — if you start with H2 headings or bullets, don't drift to a different structure mid-document. - 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 Gemini — 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.