ended3월 14일· 3 sources
I built a PDF toolkit that never uploads your files — here's how
파일 업로드 없이 브라우저에서 동작하는 PDF 툴킷 개발기
Why it matters
A developer built opdf.io, a suite of 27 free PDF tools (merge, compress, OCR, convert, sign, etc.) that run entirely in the browser using libraries like pdf-lib, PDF.js, and Tesseract.js, so no file ever leaves the user's device. Key challenges included running OCR in a Web Worker for UI responsiveness and reducing the initial bundle size from 648KB to 58KB through code splitting and lazy loading.
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