PDF Summarizer is a free online tool for people who have more to read than time to read it: students with a reading list, researchers screening papers, and anyone handed a 60-page report the day before a meeting. You upload a file, and a few seconds later you get a short summary, the key points, and a chat where you can ask the document questions.
What it does
- Reads almost any document. PDF, Word, PowerPoint, Excel, plain text, Markdown, RTF, OpenDocument, HTML, EPUB and FB2 e-books, and images (JPG, PNG, GIF, WebP), up to 50 MB per file.
- Summarizes, then answers. Every summary comes with key points and suggested questions, and you can ask your own follow-ups about the same file.
- Works in 11 languages. The site is available in English, French, Italian, German, Spanish, Portuguese, Turkish, Dutch, Indonesian, Thai and Korean.
- Costs nothing and asks for nothing. No account, no email, no card.
The same engine powers tools tuned to specific jobs: the PDF summarizer, the book summarizer for novels and e-books, the text summarizer for notes, articles and transcripts, the PowerPoint summarizer for lecture slides and decks, and the image summarizer for photos of pages, screenshots and charts.
How your file is handled
Your file goes over an encrypted connection into private cloud storage. An AI model from OpenAI reads it and writes the summary; content sent through OpenAI's API isn't used to train its models. We don't use your documents for training either, and we delete uploaded files and their summaries within 30 days. The details are in our Privacy Policy.
What we won't pretend
AI summaries are useful and fallible. They can skip a caveat, flatten a table, or state something the document never said. So we don't tell you to stop reading. We tell you where to look: use the summary to decide what matters, then check those parts against the source. We wrote a whole guide on how to check an AI summary in a few minutes.
The blog
On the blog we write about reading and studying faster without fooling yourself, from which learning methods hold up in research to how to use AI study tools well. Every claim links to the study behind it, and where the evidence is thin, we say so.
Get in touch
Found a file the tool can't handle, a summary that got something wrong, or a feature you'd like? Contact us. Reports with a real example help us most.