Generate structured exams from PDFs with OpenAI GPT-4o and HTML to PDF

Description

🚀 ExamForge AI Automated PDF to Structured Exam Generator (MCQ + Essay + Answer Key) Generate structured exams automatically from text-based PDF materials using AI. ExamForge AI is a production-ready n8n workflow that transforms educational content into multiple-choice and essay questions with customizable difficulty and automatic answer key generation. ✨ Features 📄 Upload PDF via Webhook ✅ File size validation (default: max 5MB) 🧹 Automatic text cleaning 📏 Token length estimation & safety control 🎯 Customizable MCQ & Essay count 🧠 Difficulty selection (easy / medium / hard) 🌍 Language selection 📦 Structured JSON AI output 📝 Separate Exam PDF & Answer Key PDF 📲 Telegram delivery support (optional) 🔒 Parameter validation with structured error responses 🧠 What This Workflow Does Accepts PDF upload via Webhook Validates file size Extracts and cleans text content Estimates text length to prevent token overflow Validates required parameters: mcq_count essay_count difficulty language Sends structured prompt to OpenAI Parses JSON response Formats exam and answer key separately Converts both into PDF Sends results via Telegram or Webhook response ⚙️ Requirements Accounts Required OpenAI account (API key required) Telegram Bot (optional) PDF Munk (API key required) Environment n8n (self-hosted or cloud) Node version compatible with your n8n installation 🔑 Credentials Setup 1️⃣ OpenAI Add OpenAI credentials inside n8n Insert your API key Select preferred model (e.g., GPT-4o / GPT-4) 2️⃣ Telegram (Optional) Create a Telegram Bot via BotFather Insert Bot Token into Telegram node Add your Chat ID 🛠 Webhook Configuration Method: POST Content-Type: multipart/form-data Required Parameters | Parameter | Type | Required | Description | |--------------|--------|----------|-------------| | file | File | Yes | PDF document | | mcq_count | Number | Yes | Number of multiple-choice questions | | essay_count | Number | Yes | Number of essay questions | | difficulty | String | Yes | easy / medium / hard | | language | String | Yes | Output language | 📥 Example Request curl -X POST https://your-n8n-domain/webhook/examforge \ -F "file=@document.pdf" \ -F "mcq_count=20" \ -F "essay_count=5" \ -F "difficulty=medium" \ -F "language=Indonesian". An n8n automation workflow template by Ramdoni.

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