AG World Tools is built on top of high-performance, vetted open-source software libraries. We gratefully acknowledge the authors and maintainers of these projects:
1. pdf-lib
License: MIT License • Copyright: © 2019 Andrew Dillon
Used for in-browser PDF manipulation, merging, splitting, page extraction, and metadata modifications.
2. PDF.js
License: Apache License 2.0 • Copyright: © Mozilla Foundation
Used for high-fidelity client-side PDF document rendering and rasterization.
3. JSZip
License: MIT License • Copyright: © 2009-2016 Stuart Knightley, David Duponchel, Franz Buchinger, António Afonso
Used for in-browser file compression and client-side ZIP archive extraction.
4. SheetJS (xlsx)
License: Apache License 2.0 • Copyright: © SheetJS LLC
Used for spreadsheet parsing, Excel to CSV conversions, and data cleaning.
5. heic2any
License: MIT License • Copyright: © 2019 Alex Corvi
Used for in-browser conversion of Apple HEIC/HEIF photos to JPEG/PNG.
6. qrcode-generator
License: MIT License • Copyright: © 2009 Kazuhiko Arase
Used for dynamic QR code image generation in pure JavaScript.