Error: PDF.js could not be resolved: ReferenceError: DOMMatrix is not defined

[mariusa]

Environment

├── pdfjs-dist@5.4.449 (I also tried pdfjs-dist@5.4.394, same error)
├── unpdf@1.4.0

node 24

Reproduction

import { definePDFJSModule, renderPageAsImage } from 'unpdf'
// Use the official PDF.js build
await definePDFJSModule(() => import('pdfjs-dist'))
import { promises as fsPromises } from 'fs'
const { readFile, writeFile } = fsPromises

async function pdfPageToImage() {


    const pdf = await readFile('./misc/test-places.pdf')
    const buffer = new Uint8Array(pdf)
    const pageNumber = 1

    const result = await renderPageAsImage(buffer, pageNumber, {
        canvasImport: () => import('@napi-rs/canvas'),
        scale: 2,
    })
    await writeFile('dummy-page-1.png', new Uint8Array(result))
}



await pdfPageToImage()

Describe the bug

Hallo Johann and team,

Trying to render pdf page as image, as the example, but that gives error

Warning: Please use the `legacy` build in Node.js environments.
file:///.../node_modules/unpdf/dist/index.mjs:30
      throw new Error(`PDF.js could not be resolved: ${error}`);
            ^

Error: PDF.js could not be resolved: ReferenceError: DOMMatrix is not defined

I see DOMMatrix is somehow handled in this repo, but don't know how.

Additional context

No response

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