The `@napi-rs/canvas` package has fewer dependencies, which should *hopefully* make installing and using it easier for `pdfjs-dist` end-users. (Over the years we've seen, repeatedly, that `canvas` can be difficult to install successfully.)
Furthermore, this package includes more functionality (such as `Path2D`) which reduces the overall number of dependencies in the PDF.js project.
One point to note is that `@napi-rs/canvas` is a fair bit newer than `canvas`, and has a lot fewer users, however looking at the commit history it does seem to be actively maintained.
Note that I've successfully tested the [Node.js examples](https://github.com/mozilla/pdf.js/tree/master/examples/node), in particular the `pdf2png` one, with this patch applied and things appear to work fine.
Please see:
- https://www.npmjs.com/package/@napi-rs/canvas
- https://github.com/Brooooooklyn/canvas
We need to pass `disableFontFace` and `nativeImageDecoderSupport`
because Node.js has no native support for `@font-face` and `Image`.
Doing so makes it possible to render e.g., the Tracemonkey paper, which
failed before. I made this PDF file the default because it's also the
default in other examples/demos and because it showcases the
possibilities better than the very simple hello world PDF file.
Building the library with `gulp dist-install` is easier and is already
recommended in the other examples.
