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AI Summarizer

AI PDF Summarizer produces an extractive summary by ranking the document's sentences with TextRank and returning the highest-scoring ones verbatim, so every line in the summary is text that actually appears in your file.

About AI Summarizer

Extractive summarisation works differently from a chatbot. TextRank builds a graph of the document's sentences, scores them by how strongly they connect to the rest of the text, and returns the top-ranked ones unchanged. Nothing is paraphrased and nothing is generated, so the summary cannot state a figure, a date or a conclusion that is not already written somewhere in your document.

That property is the point. A generative model can produce fluent text that misstates a contract term, and you would have to read the original to catch it. Here, every sentence is quotable and traceable. The processing runs entirely on our server with no third-party API, so nothing is sent to an external service. The output reads as selected highlights rather than flowing prose.

How to ai summarizer

  1. Upload the PDF you want summarised, or drag it into the box.
  2. Choose how many sentences the summary should contain.
  3. Click the summarise button and let TextRank rank the document's sentences.
  4. Read the summary on screen and copy or download the result.

Why use this tool

Cannot hallucinate

Every sentence is lifted verbatim from your document, so the summary can never invent a figure, a date or a claim the original does not make.

Runs offline

Processing happens on our own server with no third-party API call, so your document is not sent to any external model provider.

Traceable output

Because sentences are quoted rather than rewritten, you can find each one in the original and check its context before relying on it.

Frequently asked questions

Can the summary contain made-up facts?
No. The method is extractive: it selects existing sentences and returns them unchanged, so there is no generation step in which something could be invented. Every line appears verbatim in your document. That is the main practical difference from asking a large language model to summarise.
How is this different from pasting my PDF into a chatbot?
A chatbot generates new sentences, which read more smoothly but can misstate details and must be checked against the source. This ranks and quotes your own sentences, so accuracy is guaranteed at the cost of flow. It also keeps your document off a third-party provider's servers.
Is my document sent anywhere?
No. Summarisation runs on our server with no external API involved, so the text is never passed to another company's model. The uploaded file and its summary are deleted within one hour, which matters if you are summarising anything commercially or personally sensitive.
How long is the summary?
You choose, by setting how many sentences to return. A handful gives you the gist of a report; more suits a long or wide-ranging document. Note that a very short setting on a complex document will favour general statements over specific detail.
Does it work on scanned PDFs?
Only if the scan has a text layer. TextRank needs real sentences to rank, and a scan is an image of words. Run OCR on the file first, then summarise. Digital PDFs from Word, LaTeX or a report generator work straight away with no preparation.