AI Summarizer
Get a short summary of a long document.
or drag and drop PDFs here
Files are processed on your device and never uploaded.
Working…
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To summarize a PDF, select the file, choose short, medium or long, and click Summarize. You get the key points and the section outline in seconds. Copy them or download them as text. Quick mode works in any browser and language; AI mode uses the AI built into Google Chrome on your own device.
How to AI Summarizer
- Select your PDF fileClick “Select file” or drop your PDF file on the page.
- Choose your optionsChoose the summary length and method.
- Click “Summarize”The result is created on your device in seconds and downloads automatically.
Frequently asked questions
Is my document sent to an AI service?
No. Quick mode runs entirely in your browser, and AI mode uses the model built into Chrome on your own computer. Nothing is uploaded.
Can it summarize scanned PDFs?
Run OCR PDF first to make the text readable, then summarize.
Is AI Summarizer free?
Yes. AI Summarizer on HappyPDF is completely free: no sign-up, no watermark and no daily limit.
Are my files safe?
Yes. Your files are processed inside your own browser and are never uploaded to HappyPDF’s server,, so nobody else can see them.
Does it work on phone, Mac and Windows?
Yes. It works in any modern browser (Chrome, Safari, Edge, Firefox, Samsung Internet) on Windows, macOS, Linux, Android and iPhone/iPad. Nothing to install.