Make PDFs look scanned (CLI or in the browser via WASM)

This devtool converts clean digital PDFs into realistic scanned-looking documents, either via a command-line interface or directly in the browser using WebAssembly. It is designed for developers and users who need to bypass automated PDF filters or add a "physical document" aesthetic for testing, archiving, or compliance purposes. The project is interesting because it combines image processing, WASM performance, and a playful subversion of digital document expectations into a single, lightweight utility.