PDF Summarizer
Upload a PDF and get an AI-generated summary of its content — pick the target length and whether you want flowing prose or a bulleted list of key points.
Input
Summarized server-side with AI — this uses credits per file. Only the PDF's embedded text is read; scanned/image-only PDFs have none to summarize.
Output
Guides
Upload a PDF and get an AI-generated summary of its content — no copy-pasting the text out first. Choose how long you want the summary and whether you'd rather read flowing prose or a scannable bulleted list.
How to use it
- Upload the PDF you want summarized.
- Choose a summary length: short (2-3 sentences), medium (one paragraph), or long (2-3 paragraphs).
- Choose a format: paragraph for flowing prose, or bullet points for a scannable list of the key points.
- Click Summarize.
What it reads
The summary is generated from the PDF's embedded text layer — the same text you could select and copy in a PDF viewer. A PDF exported from Word, LaTeX, or a browser's "Print to PDF" has this; a scanned or photographed document usually doesn't, since it's really just a picture of a page with no text underneath. If your file has no extractable text, run it through Scanned PDF Converter first (it OCRs the pages into a searchable PDF), then summarize the result.
For very long documents, only the first ~60 pages (or roughly 20,000 characters of text, whichever comes first) are read — long enough for the vast majority of reports, articles, and ebooks, without the summary call growing unbounded on a 500-page file.
Paragraph vs. bullet points
- Paragraph reads naturally and works well when you want to drop the summary straight into a document, email, or newsletter blurb.
- Bullet points breaks the same content into a scannable list — better for skimming a long report quickly, or pulling out the key takeaways for a meeting or a social post.
Tips
- If the summary misses something important, try the "long" length first — a shorter target sometimes drops a secondary point to stay concise.
- Copy or download the result — like every AI-generated tool on this site, the summary isn't reproducible from a shared link (it's non-deterministic, so a link would just spend credits regenerating a different answer).
- For plain pasted text instead of a file, use Text Summarizer.
Is my file stored anywhere?
Your PDF's extracted text is sent to an AI provider to generate the summary, then discarded — it isn't logged, stored, or used to train anything. See the third-party data badge above the tool for details.
Does this work on password-protected PDFs?
No — remove the password first with Unlock PDF, then upload the unlocked file here.
Use it from code
From 24 credits per callREST API
curl -X POST https://api.iotools.cloud/v1/tool/pdf-summarizer \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"file": "data:application/pdf;base64,JVBERi0xLjcKJYGBgYEK…",
"length": "medium",
"format": "paragraph"
}'Swap in your own key from your account. The tool's fields are the body — no wrapper.
Ask an AI agent
Use the IOTools `pdf-summarizer` tool (PDF Summarizer) on this input:
YOUR_INPUT_HEREPaste this at any agent connected to the IOTools MCP server, then add your input.