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html-to-pdf-crab-js

v0.1.1

Published

Native Node.js package built with Rust and NAPI-RS for HTML-to-PDF rendering.

Downloads

261

Vulnerabilities

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Links

Git

Maintainers

inaiatinaiat

Keywords

N-APIRusthtmlhtml-to-pdfnapinapi-rsnode-addonnode-addon-apipdf

Readme

html-to-pdf-crab-js

Native Node.js package built with Rust and NAPI-RS for HTML-to-PDF rendering.

Usage

Node.js should use the native NAPI entrypoint:

import { writeFileSync } from 'node:fs'
import { createPdfFromHtml } from 'html-to-pdf-crab-js'

const pdf = await createPdfFromHtml({
  html: '<!doctype html><html><body><main><h1>Invoice</h1><p>Generated from HTML.</p></main></body></html>',
  css: 'body { font-family: sans-serif; } h1 { color: #111827; }',
  page: {
    size: 'A4',
    margin: 12,
  },
})

writeFileSync('html-example.pdf', pdf)

The public API is intentionally small:

  • createPdfFromHtml(input): Promise<Buffer>

Use pdf-crab-js when the document is already structured as explicit PDF pages and elements.

WebAssembly

Browser, Deno, Bun, and portable runtimes can use the NAPI-RS WebAssembly build:

import { createPdfFromHtml } from 'html-to-pdf-crab-js/wasm'

Browser deployments must enable SharedArrayBuffer, which requires these response headers:

Cross-Origin-Embedder-Policy: require-corp
Cross-Origin-Opener-Policy: same-origin

Development

Install dependencies from the workspace root:

pnpm install --filter html-to-pdf-crab-js

Build and test:

pnpm --filter html-to-pdf-crab-js build
pnpm --filter html-to-pdf-crab-js test
pnpm --filter html-to-pdf-crab-js check
pnpm --filter html-to-pdf-crab-js lint
pnpm --filter html-to-pdf-crab-js fmt:check

Run local examples:

pnpm --filter html-to-pdf-crab-js-examples invoice
pnpm --filter html-to-pdf-crab-js-examples report
pnpm --filter html-to-pdf-crab-js-examples browser

Generated files are written to examples/html-to-pdf-crab-js/output/.

Build and smoke-test the WebAssembly binding:

rustup target add wasm32-wasip1-threads
pnpm --filter html-to-pdf-crab-js build:wasm
pnpm --filter html-to-pdf-crab-js test:wasm