About Us

We are dedicated to providing comprehensive, free PDF processing tools with advanced features like OCR text recognition, AI smart summary, and batch conversion, making document processing simple and efficient.

Open Source

Built with Next.js, TypeScript and other modern web technologies, integrating multiple professional libraries, completely open source and transparent, allowing everyone to understand how the tool works.

High Performance

Powered by PDF.js engine, integrated with Tesseract.js OCR recognition and WebLLM AI model, pure frontend processing, no need to upload files to servers, protecting your privacy.

User First

Providing complete solutions from basic conversion to advanced AI features, continuously optimizing user experience, constantly improving features based on user feedback to make tools more powerful and user-friendly.

Technical Architecture
Learn about our technology choices and development philosophy

Frontend Stack

  • • Next.js 14 - Modern React Framework
  • • TypeScript - Type Safety
  • • Tailwind CSS - Atomic CSS
  • • PDF.js - PDF Processing Engine
  • • Tesseract.js - OCR Text Recognition
  • • WebLLM - Browser-side AI Model
  • • GIF.js - GIF Animation Generation
  • • PDF-lib - PDF Document Generation

Core Features

  • • Pure Frontend Processing
  • • Batch Conversion
  • • OCR Text Recognition
  • • AI Smart Summary
  • • Watermark Support
  • • Multiple Format Output
  • • GIF Animation Creation
  • • Searchable PDF Generation
  • • Page Merging
  • • Password Protection Support

Open Source Project

Our code is completely open source, welcome to view, learn and contribute. Through open source, we hope to promote the development of PDF processing technology and benefit more developers.

Contact Us

If you have any questions, suggestions, or want to contribute code, please feel free to contact us through GitHub Issues. We value every user's feedback and will seriously consider every improvement suggestion.