AI PDF Analyzer with Webhook for n8n Workflow Automation

Turn any PDF into structured AI summaries—automatically—inside your n8n workflows

This AI PDF Analyzer with Webhook for n8n lets you upload a PDF to a dedicated endpoint and instantly receive a topic-based, markdown-ready summary generated by OpenAI GPT-4o-mini. Perfect for quickly extracting key insights from long documents without manually reading every page.

What this workflow does

Designed for fast research and content digestion, the workflow follows this process:

• Document Upload: Accepts PDF files via a POST endpoint at /ai_pdf_summariser.
• File Validation: Verifies the PDF is under 10MB and has fewer than 20 pages to stay within API limits.
• Content Extraction: Extracts text content from the uploaded PDF.
• AI Topic Breakdown: Uses OpenAI GPT-4o-mini to analyze the document and split it into distinct topics.
• Insight Generation: For each topic, generates 3 key insights with titles and detailed explanations.
• Markdown Formatting: Converts results into markdown for easy reading.
• Return Results: Responds with the formatted summary plus document metadata, including a file hash.

Use cases

• Researchers summarizing research papers, reports, or whitepapers into organized topics.
• Students turning lengthy course PDFs into quick, structured study notes.
• Professionals extracting actionable insights from internal PDF documentation.
• Content creators generating topic summaries to accelerate drafting and outlining.

Technical details

• Webhook (POST): /ai_pdf_summariser
• Nodes/steps: if, set, code, no op, crypto, webhook
• AI model: OpenAI GPT-4o-mini
• Validation: under 10MB and fewer than 20 pages
• Output: markdown summary + file hash

Setup: Configure your OpenAI API credentials, deploy the workflow webhook, then test by uploading a PDF to /ai_pdf_summariser.