PDF Studio by ALLSERVICESAI PVT LTD Original editor application code: MIT license, Copyright 2026 ALLSERVICESAI PVT LTD. Permission is granted, free of charge, to any person obtaining a copy of this software and associated documentation files, to deal in the Software without restriction, including use, copy, modification, merging, publication, distribution, sublicensing, and sale, subject to including this copyright and permission notice. THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND. Open-source dependencies retain their own licenses: PDF.js 6.4.299 — Apache-2.0 — https://github.com/mozilla/pdf.js/blob/master/LICENSE pdf-lib 1.17.1 — MIT — https://github.com/Hopding/pdf-lib/blob/master/LICENSE.md Tesseract.js 6.0.1 — Apache-2.0 — https://github.com/naptha/tesseract.js/blob/master/LICENSE.md Tesseract.js-core 6.0.0 — Apache-2.0 — https://github.com/naptha/tesseract.js-core Tesseract language data — Apache-2.0 — https://github.com/tesseract-ocr/tessdata DM Sans and Manrope fonts — SIL Open Font License — https://fonts.google.com PDFs and images are processed in the browser. OCR is optional and downloads its worker and language data from public CDNs. PDF.js may download fonts, CMaps, and WASM support from jsDelivr for some documents. Documents are not uploaded to these services.