How to Summarize Long Documents

When You Need a Summary

There are documents you need to read, and documents you need to understand. The difference matters. A 60-page annual report, a 30-page research paper, a 15-page strategic review — these don't always need to be read word for word. What you need is the essential information: the conclusions, the key findings, the decisions, the numbers that matter, and the recommendations. Everything else is context.

The problem is that extracting those key points manually takes time — time most people don't have. You might receive three long reports in the same week, or be preparing for a meeting about a document you received that morning. Simplifier's Summarize mode solves this problem by reading the full document and distilling it into the points that matter most, in seconds rather than hours.

Types of Long Documents Simplifier Can Handle

Simplifier can create summaries of virtually any text-based document format, including:

• Annual and quarterly reports: Financial performance, operational highlights, risk disclosures, and strategic outlook
• Research papers and academic articles: Methodology, findings, conclusions, and implications
• Board papers and meeting minutes: Decisions made, action items, and agenda outcomes
• Policy documents and government reports: Regulatory changes, consultation outcomes, and official recommendations
• Due diligence reports: Risk findings, financial summaries, and legal observations
• Market research and industry reports: Market size, trends, competitive landscape, and forecasts
• Legal documents and contracts: Key obligations, terms, and conditions without the boilerplate
• Technical specifications: Core requirements, constraints, and design decisions
• Books and long-form articles: Main arguments, key evidence, and central conclusions

Step-by-Step: Creating a Summary

Getting a great summary from a long document is straightforward with Simplifier:

• Step 1 — Import your document: Upload a PDF from your Files app, share from mail or a browser, or paste the text content directly. For scanned documents, use the camera scan option to photograph the pages.
• Step 2 — Select Summarize mode: Tap Summarize from the mode selector. For most long documents, this is the best starting point — it gives you the big picture before you decide which sections deserve closer attention.
• Step 3 — Read your summary: Simplifier will return a structured, readable summary of the document. Key points are organized logically — typically covering the document's purpose, main findings or arguments, key data points, and conclusions or recommendations.
• Step 4 — Ask follow-up questions: Switch to Ask mode to drill deeper into anything the summary raises. "What were the main risks identified?", "What do the revenue figures mean for profitability?", or "What action is recommended by the authors?" are all great follow-up questions.
• Step 5 — Share or save your summary: Use iOS's native share sheet to copy, share, or save your summary to Notes, email it, or add it to any writing or productivity app.

What Makes a Good AI Summary

A useful summary is more than a shorter version of the original — it's a structured distillation that preserves the most important information while removing what doesn't matter. Simplifier's summaries are designed to:

• Lead with the conclusions: Rather than following the document's structure, summaries start with the most important outcomes and findings.
• Preserve key numbers and data: Financial figures, percentages, timelines, and quantitative findings are included where they're essential to understanding the document.
• Flag uncertainty and caveats: Where authors express uncertainty, recommendations come with conditions, or data has limitations, the summary reflects that rather than oversimplifying.
• Be proportionate: A 5-page executive summary for a 100-page report is proportionate. A 10-bullet summary of a 3-page policy document is proportionate. Simplifier adjusts the depth of summary to the length and complexity of the source material.

Tips for Better Summaries

Follow these tips to get the most useful summaries from Simplifier:

• Add context in the text field: Before running the summary, briefly tell Simplifier your purpose — "I'm a board member preparing for a meeting" or "I need a summary to share with a client unfamiliar with the topic." This helps tailor the output to your audience.
• Summarize in sections: For very long documents (over 50 pages), consider summarizing the most important sections individually — the executive summary, the financials, the risk section — for more focused outputs.
• Use Ask mode for precision: After getting your summary, switch to Ask for specific data points: "What is the projected revenue growth for 2025?" or "What were the three main recommendations in the conclusion?"
• Cross-check critical figures: For documents where precise numbers matter (financial reports, legal terms, regulatory thresholds), always verify key figures against the source document rather than relying solely on the summary.

Beyond Summarizing: Ask Specific Questions

Once you've read your summary, Simplifier's Ask mode lets you extract specific information from the full document without reading it yourself. This is particularly powerful for long reports where you need a precise data point or want to understand a specific section in more depth.

Try questions like:

• "What methodology did the researchers use to collect their data?"
• "What was the year-on-year change in operating costs?"
• "What does the report recommend for companies in the financial services sector specifically?"
• "Are there any caveats or limitations mentioned in the conclusion?"

This combination of Summarize for the overview and Ask for the detail gives you all the information you need from a long document in a fraction of the time it would take to read it in full.