pdf-inspector/wasm

@firecrawl/pdf-inspector-wasm

Browser WebAssembly bindings for pdf-inspector. Classify PDFs and extract structured Markdown locally from a Uint8Array, using the same Rust core as the native Node.js, Python, and Rust packages.

Install

npm install @firecrawl/pdf-inspector-wasm

Usage

import init, { processPdf } from "@firecrawl/pdf-inspector-wasm";

await init();

const response = await fetch("/annual-report.pdf");
const pdf = new Uint8Array(await response.arrayBuffer());
const result = processPdf(pdf);

console.log(result.pdfType);
console.log(result.markdown);

Pass options when you need selected pages or compact Markdown:

const result = processPdf(pdf, {
  pages: [1, 3, 5],
  profile: "compact",
  includePageMarkers: true,
});

The package also exports:

• detectPdf(pdf, options?) for detection without extraction.
• classifyPdf(pdf) for the lightweight result shape shared with the native Node.js API.
• extractText(pdf) for plain text.
• version() for the WASM package version.

Browser behavior

• Parsing runs locally. PDF bytes are not uploaded anywhere.
• The build is single-threaded and does not require cross-origin isolation.
• CMaps are embedded so CJK font decoding does not depend on a filesystem.
• Extraction is synchronous after init(). For large documents, call it from a Web Worker to keep the UI responsive.
• Image-only documents still require a separate OCR step.

Build from source

cargo install wasm-pack --version 0.15.0 --locked
wasm-pack build wasm --target web --scope firecrawl --release

License

MIT