PDF Summarizer — Key Sentences from a PDF

How to summarize a PDF

1. Drop your PDF file on the box above, or click it to choose the file — or press Load a sample to try it first.
2. Check the settings below the box; the defaults suit most files.
3. Press Convert. Long jobs show a progress bar and can be cancelled; you then see what was made and its real size.
4. Download the .txt file.

What is kept when you summarize a PDF

• The summary is extractive: it is made of the document’s own sentences, chosen by how many of its most frequent content words they contain, in their original order. Nothing is reworded or invented.
• You choose how many sentences; the most frequent terms are listed too. It is a rule-based method — not AI, and not a model.
• It works best on English prose with a text layer; tables, slides and scanned pages (no text) give poor or empty results, and the tool says when there is no text.

Example

Three sentences chosen from the sample report — each one appears word for word in the PDF:

Input

sample.pdf — 3 pages, A4 portrait (440.0 KB)

Output

• Solar panels convert sunlight into electricity using photovoltaic cells.
• A home solar system produces the most electricity around midday.
• Batteries store solar electricity for the evening, when panels produce nothing.

Most frequent terms: solar, electricity, panels, home, system, years, household, photo

About PDF and TXT files

A PDF holds pages that look the same on every device: text with its fonts, vector drawings and images at fixed positions. Pages can be rotated, reordered or copied between files without redrawing them. It opens in any browser, Acrobat Reader, phone and tablet viewers.

The summary is plain text: the selected sentences in document order, followed by the most frequent terms. It opens in any text editor.

Good to know

• A PDF that asks for a password when you open it cannot be processed here; protection is never removed.
• Treat an extractive summary as a reading guide, not a replacement for the document: it can only quote what is there.

Privacy and limits

The file is read and converted by this page in your browser; there is no upload and no account. Nothing inside a PDF is run: there is no PDF JavaScript engine on this page, and links and forms are copied, not followed. Encrypted PDFs are refused rather than unlocked. PDFs may have up to 2,000 pages, and up to 300 pages are rendered in one run. Files up to 150 MB are accepted; a file of the wrong type or a damaged file is rejected with the reason.