GroupDocs.Parser GUI - Document Parser and Template Editor

This repository provides a WPF-based document parser and template editor built on GroupDocs.Parser for .NET.
It allows you to visually define parsing templates for documents and then apply them to extract structured data.

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📖 Overview

The solution includes project(s):

• GroupDocs.Parser.GUI – Windows desktop GUI for creating and editing parsing templates.

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⚙️ Features

• Open & View Files – Load PDF or image documents into the viewer.

• Set License – Apply a valid GroupDocs license.

• Zoom Controls – Adjust document zoom level (+, -, 110%).

• Parse Methods

  • Text – Create a visual template field for text extraction.
  • Barcode – Create a visual template field for barcode extraction.
  • OCR – Enable text recognition for scanned images.
  • Parse Fields – Extract values using defined template fields.
  • Parse Document – Run full parsing logic over the entire document.

• Template Management

  • Generate Template – Automatically generate template JSON based on selected fields.
  • Visibility – Toggle template field overlays on the preview.
  • Template Fields Panel – Manage and inspect detected fields (Invoice Number, Date, Total, Tax, Details, etc.).

• Visual template editor for PDFs and scanned images.

• Supports three field types:

  • Field
  • Table (🚧 not supported in Beta)
  • Barcode

• Save & load templates as XML definition files.

• Apply templates to documents via console tool.

• OCR support for scanned PDFs and TIFFs.

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📂 Repository Structure

├── Distribution/        # Precompiled binaries
│   └── GroupDocs.Parser.GUI/
├── src/                 # Source code
│   └── GUI/
├── Examples/            # Sample documents, templates & output files

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🚀 Getting Started

Set License

Update config.json with your GroupDocs.Parser license:

{
  "LicensePath": "D:\\Licenses\\GroupDocs.Parser.NET.lic"
}

👉 If you don’t have a license, request a free temporary one here:
Get Temporary License

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Create a Parsing Template

Run the GUI:

.\Distribution\GroupDocs.Parser.GUI\GroupDocs.Parser.GUI.bat

Steps:

1. Open a document.
2. (Optional) Click Generate Template to enable auto field adjustment.
3. Add fields visually (Field / Barcode).
4. Save the template as XML.
5. Try parsing inside the GUI.

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User Interface

Top Toolbar

• Set License: Load GroupDocs license.
• Open File: Browse and open a document file.
• Zoom Controls: Adjust view scale.
• Parsing Controls:
  • Text: Add a text extraction field visually.
  • Barcode: Add a barcode extraction field visually.
  • OCR: Enable OCR for scanned documents.
  • 500: Set parsing resolution (DPI).
  • Parse Fields: Extract based on template fields only.
  • Parse Document: Parse entire document.
  • Visibility: Show/hide template field rectangles.
  • Generate Template: Export defined fields into a reusable template file.

Document Viewer

• Displays the loaded file.
• Allows placing template fields by clicking Text or Barcode and drawing over regions.
• Extracted fields are highlighted with bounding boxes.

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🛠 Installation for Developers

Clone the repository and build with .NET:

git clone https://github.com/groupdocs-parser/groupdocs-parser-gui.git
cd groupdocs-parser-gui/src
dotnet build

Run GUI:

dotnet run --project GUI

Run Console Parser:

dotnet run --project DocumentParser

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📌 Beta Limitations

• Supported documents:

  • PDFs with text
  • Scanned PDFs & TIFF images (with OCR enabled)

• Supported field types

  • Text field
  • Barcode field

• Templates work per page (can be reused across pages with same structure).

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🔮 Roadmap

• Automatic detection of scanned vs text-based docs (auto OCR toggle).
• Implement Table field support.
• Improve GUI usability & stability.
• Automated matching between documents and templates.

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🤝 Contributing

This project is open-source.
You are welcome to:

• Suggest new features.
• Submit pull requests.
• Extend the tool with your own dev capabilities.

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📜 License

This tool is provided for customer convenience under open-source terms.
For core parsing functionality, a GroupDocs.Parser for .NET license is required.