embed-pdf-viewer

Quick update: I just added a new option where you can set a custom wasmUrl when initializing the snippet. This way you can host your own .wasm build if you want to be 100% sure it hasn’t been modified. Here’s the commit: https://github.com/embedpdf/embed-pdf-viewer/commit/ff928377... Thanks again for raising the point — really good feedback!

Good question. You can fully reproduce the build. We have a Dockerfile here that handles the process: https://github.com/embedpdf/embed-pdf-viewer/blob/main/packa... Also, if you look in the package.json, there is a wasm script set up. Running pnpm run wasm will build the .wasm file inside Docker, so you get a clean, repeatable build.

Thanks so much, that’s a huge compliment, really appreciate it. Actually, most of what you’re describing is already there. We built a tiling plugin (https://github.com/embedpdf/embed-pdf-viewer/tree/main/packa...) that works kind of like Google Maps — instead of rendering the full document, it splits it into tiles and only renders what’s visible in the viewport. That’s how we keep it fast even for really large documents. Right now we support pinch-zoom on mobile, but mouse pan/zoom isn’t wired up yet. Would love to see you collaborate on the project if you’re interested. This kind of feedback is a big encouragement!

Is there any security risk to use as project with an embedded .wasm binary? Is there a build process for this that we can reproduce, or is there a way to bring our own if it's a generally available asset? Referring to this file: https://github.com/embedpdf/embed-pdf-viewer/blob/main/packa...

I just open-sourced EmbedPDF, a modern JavaScript PDF viewer that uses PDFium compiled to WebAssembly — not PDF.js. If you've ever tried to deeply customize PDF.js or needed high-fidelity rendering, you’ve probably hit its limits. And when looking for alternatives, most roads lead to Apryse (formerly PDFTron) or Nutrient (formerly PSPDFKit) — both powerful, but closed-source and expensive. There hasn’t really been a good middle ground — until now. GitHub: https://github.com/embedpdf/embed-pdf-viewer Demo & Docs: https://www.embedpdf.com