PDF File Analyzer

A simple console / WPF application to parse and analyze PDF files using the UglyToad.PdfPig library.

✨ Features

• ✅ Reads a PDF file specified by the user
• ✅ Extracts words, cleans punctuation, and normalizes text
• ✅ Counts the frequency of each word (case-insensitive)
• ✅ Displays a sorted frequency list in the console
• ✅ Analyzes word frequencies with or without a stop-word list
• ✅ Analyzes only selected words specified by the user
• ✅ Exports selected word frequencies to JSON report
• ✅ Interactive console menu with options to analyze & export

📄 Example Console Output

Word frequency:
lorem — 42
ipsum — 39
dolor — 35
...

Processing completed.

📦 JSON Export Example

{
  "lorem": 42,
  "ipsum": 39,
  "dolor": 35
}

🔧 Requirements

• .NET 6.0 SDK or later
• UglyToad.PdfPig

🚀 Usage

dotnet run

Menu Options

1. Analyze and show all word frequencies in a PDF file
2. Analyze and show only selected words in a PDF file
3. Analyze word frequencies without predefined stop words
4. Export the latest result to JSON
5. Exit the application

📌 Current Status

This is a working prototype focused on word frequency analysis.
The codebase is modular and easily extensible for future features.

🛠️ Planned Improvements

• Export to CSV or Excel formats
• Improved error handling and logging

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Developed as a practical C# project to demonstrate PDF parsing, user interaction, and modular architecture.