1.2Summarize a long document
The essentials in 30 seconds
- Calibrate to the use: 3 sentences to decide, 10 bullets to prepare, a decisions/actions/owners table to follow up — never a generic summary.
- Question rather than summarizing everything: 'What does this document say about costs?' — targeted extraction gives the answer without reading everything.
- References = safeguard: click the numbered cross-references to check the source passages — the anti-hallucination reflex, especially for figures and commitments.
Threaded mini-case — Hicham tames a 60-page report in Algiers
Hicham receives a 60-page report at 5 p.m. for a 5:30 p.m. meeting. He opens the Copilot pane in Word and first asks 'Summarize this document in 5 key points', then calibrates: 'Make a table of the actions mentioned: action, owner, deadline'. He then switches to question mode: 'What does this document say about maintenance costs?' and 'Are there any binding dates?'. Before the meeting, he clicks 2 references to check the quoted figures. He arrives prepared — and knows exactly which passages to re-read in full.
Sequel to case 1.1 — Hicham moves from producing to processing received documents.
1. Summarize, but calibrated to the use
The basic request to the Word Copilot pane — 'Summarize this document' — applies to the open document, with references to the source passages. But a good summary is never generic: it is calibrated to the use.
Specify the form according to what you will do with it: 'in 3 sentences for an executive' (decide), 'in 10 bullets' (prepare), 'as a decisions/actions/owners table' (follow up). The same source produces three different deliverables depending on your need — Hicham picks the action table for his follow-up meeting.
2. Question the document and check against the references
Often more effective than the full summary: questioning the document. 'What does this document say about costs?', 'What are the recommendations?' — targeted extraction gives you exactly the information sought, without reading everything. This question-and-answer mode turns a long report into a conversation partner.
References (citations) — the numbered cross-references in the answer — are your anti-hallucination reflex: click to check the source passage, especially figures and binding statements. An AI summary guides reading, it does not replace it: on a contract or legal text, passages that commit you are read in full.
🔎 Concrete example — 🔎 Concrete example — One 40-page report, three uses
Three requests, three deliverables — like Hicham before his meeting.
'Summarize this document in 3 sentences for the management committee.'
'List the 10 main findings in bullets.'
'Make a table: recommendation | proposed owner | priority.'Reading: three ready-to-use deliverables in minutes, each suited to its audience.
Lesson: before circulating, click 2-3 references to check the quoted figures.
Section vocabulary
- Summarize this document
- The basic request to the Word Copilot pane — on the open document, with references to the source passages.
Simple example: The 'Summarize this document in 5 key points' launched by Hicham.
What it is not: a generic summary with no format or audience specified.
Reflex: always specify the format and the intended use.
- Calibrated summary
- Specify the form: 'in 3 sentences for an executive', 'in 10 bullets', 'as a decisions/actions/owners table'.
Simple example: The actions/owners/deadlines table prepared by Hicham for his meeting.
What it is not: the same generic block for deciding, preparing and following up.
Reflex: decide = 3 sentences, prepare = bullets, follow up = table.
- Question the document
- 'What does this document say about costs?', 'What are the recommendations?': targeted extraction, without reading everything.
Simple example: Hicham's question about maintenance costs.
What it is not: re-reading 60 pages to find a single figure.
Reflex: one precise question is worth a full summary.
- References (citations)
- The numbered cross-references in the answer: click to check the source passage — the anti-hallucination reflex.
Simple example: The 2 references checked by Hicham before his meeting.
What it is not: circulating a summary without clicking any source.
Reflex: figures and commitments: always check against the sources.
In practice — Hands-on — Summarize and interrogate the longest document received this week
- Open in Word the bulkiest document received recently and launch the Copilot pane.
- Ask for a summary calibrated to your real need: 3 sentences (decide), 10 bullets (prepare) or action table (follow up).
- Switch to question mode: ask 2-3 targeted questions ('What does it say about X?', 'What decisions are expected?').
- Click several references to check the source passages — especially figures and commitments.
Ready-to-say script — summarize before a meeting (30 s)
'I open the document in Word, Copilot pane: Summarize this document in 5 key points, then make an action-owner-deadline table. Then I ask my two questions — costs and binding dates — and I click the references to check the figures before the meeting.'
Say while showing the Copilot pane; stress the verification click.
Copy-paste template — three calibrated summary prompts
TO DECIDE:
'Summarize this document in 3 sentences for [the management committee / my manager].'
TO PREPARE:
'List the 10 main findings in bullets.'
TO FOLLOW UP:
'Make a table: action | owner | deadline.'
TARGETED QUESTION:
'What does this document say about [costs / timelines / recommendations]? Quote the passages.'Urgent report in Algiers
Like Hicham: 60 pages at 5 p.m., meeting at 5:30 p.m. — 5 key points + action table + 2 verified references, and he arrives prepared.
Prepare a meeting
10 bullets of findings + 3 targeted questions asked to the document: the agenda is built on the answers, not on a full read.
Track actions
Decisions/actions/owners table requested from Copilot: each action is traceable, each owner named.
High-stakes document
The summary shows where to look, then full reading of the binding passages (contract, legal): the AI guides, the human decides.
✓ Best practices
- Always calibrate the summary to the intended use: deciding, preparing or following up call for three different formats.
- Prefer question-and-answer mode over the full summary when seeking precise information.
- On high-stakes documents (contracts, legal), let the summary guide reading, but read the binding passages.
✗ Common pitfalls
- Circulating a summary without checking any reference: hallucination on a figure happens fast.
- Treating an AI summary as a complete read on a legally binding text.
- Asking for a generic summary when a targeted question would have given the sought answer directly.
Key takeaways
- Calibrate the summary to the USE: decide (3 sentences), prepare (10 bullets), follow up (action table).
- Clickable references are your safeguard: always check a few of them.
- Question-and-answer mode is often more effective than the full summary.
- An AI summary guides reading, it does not replace reading the binding passages (contracts, legal).
48h challenge — apply tomorrow
Take the longest document received this week: ask for the 3 formats of the template above, ask 2 targeted questions, and check 3 references by clicking. Note the time saved versus a full read.
- I calibrate each summary to the use (decide, prepare, follow up).
- I interrogate the document in question mode for targeted extraction.
- I check the source references before any circulation.
Frequently asked questions
Can Copilot summarize a PDF?
Yes in Word (open the PDF, Word converts it) or directly in Edge (Copilot pane on the displayed PDF). For image-scanned contracts, quality depends on OCR.
What maximum document length can Copilot digest?
Limits constantly evolve (counted in tens of thousands of words). On very large documents, proceed by parts: 'Summarize sections 1 to 3', then the following ones.
What are the numbered references in a Copilot summary for?