Got a long PDF and not much time? Upload it to Kimi, ask for the short version, then ask questions about any part. This guide shows the steps, gives you prompts to copy, and explains the limits.
Kimi finds the key lines, writes a short summary and answers questions about the file.
Go to kimi.com or open the app and start a new chat.
Use the attach button next to the message box.
For example: "Summarize this in 5 bullet points."
That is all you need for a basic summary. The rest of this page helps you get a better one.
This step makes the biggest difference. "Summarize this" works, but Kimi has to guess what you need. Tell it four things:
Summarize this PDF.
You get a general summary. It may skip the part you care about.Summarize this report in 6 bullet points for a busy manager. Focus on costs and risks, and add the page number for each point.
You get the right length, the right focus, and a way to check it.The summary is only the start. The PDF stays in the chat, so you can keep asking about it:
Summary first, then questions with page numbers.
Attach your PDF first, then paste one of these. Replace anything in [square brackets] with your own words.
Summarize the attached PDF in 5 bullet points. Use simple words and keep each point to one sentence.
Write a one-page summary of the attached PDF with these headings: Purpose, Key points, Numbers that matter, What to do next.
Give me a short summary of each section of the attached PDF, in order, with the section title above each summary.
Summarize this report in 6 bullet points for a busy manager. Focus on costs, risks and decisions needed. Add the page number for each point.
Read the attached PDF and list every important date, number and name in a table. Add the page number where you found each one.
List the key terms in this contract: parties, dates, payments, renewal, notice periods and penalties. Add the clause number for each. Flag anything unusual.
Explain the attached paper to someone new to the topic. Say what question it asks, how it was studied, what it found, and its limits.
Turn this chapter into study notes with short headings, key terms with definitions, and 5 practice questions with answers.
In the attached PDF, find everything it says about [topic]. Quote the key sentences and give the page numbers.
Compare the two attached PDFs. List what is the same, what is different, and anything that appears in only one of them.
These are two versions of the same document. List every change between them in a table: section, old wording, new wording.
Summarize each attached PDF in 3 bullet points, then write one paragraph on what they have in common.
More ideas: Kimi AI prompts.
Every Kimi model can only hold a certain amount of text at once. If your PDF is a whole book or a huge report, these habits help.
Ask for a summary of chapters 1 to 3, then 4 to 6, and so on. At the end, ask Kimi to combine them.
Ask: "List the sections of this PDF with one line on each." Then dig into the parts you need.
Free chat uses Kimi K2.6, which holds about 128,000 tokens. Kimi K3 can hold about a million, on paid plans.
| Limit | What Kimi's help pages say |
|---|---|
| File size | Up to 100 MB for each file |
| Number of files | Up to 50 files at a time |
| File types | PDF, Word, Excel, PowerPoint, images, TXT and video |
| How much it reads at once | About 128,000 tokens with Kimi K2.6. About 1 million tokens with Kimi K3 on higher paid plans |
| Scanned PDFs | Not covered in the help pages. Expect weaker results than with a normal text PDF |
Checked against Kimi's help pages on 8 October 2026. Limits can change, and free accounts may also have daily usage limits. See what the free plan includes.
Uploading a file shares it with the service. Do not upload confidential, personal or client documents unless you are allowed to.
Ask for page numbers and read those pages. Be extra careful with numbers, dates and names.
A summary of a contract, medical report or financial filing helps you prepare. It does not replace a lawyer, doctor or adviser.
Kimi itself not loading? See Kimi not working.