Keep the worker version in sync with pdfjs-dist version

As mentioned in the Setting up the worker section, the worker version has to be the same as the version of the `pdfjs-dist` package. Otherwise, you you will see the error message like this:

The API version "2.6.347" does not match the Worker version "2.1.266"

The worker version is determined in the `Worker` component usage:

<Worker workerUrl="https://unpkg.com/pdfjs-dist@2.1.266/build/pdf.worker.min.js">...</Worker>

Whereas the version of `pdfjs-dist` is found in the `package.json` file when you install the package:

{
    "dependencies": {
        "pdfjs-dist": "^2.6.347",
        ...
    }
}

It isn't convenient and error prone when you upgrade `pdfjs-dist` but forget to set the same version for the worker.

You can keep both versions in sync to each other by replacing the worker version with the `pdfjs-dist` version found in the `package.json`:

// The path to `package.json` can be changed depending the path of current file
import packageJson from '../package.json';

const pdfjsVersion = packageJson.dependencies['pdfjs-dist'];

<Worker workerUrl={`https://unpkg.com/pdfjs-dist@${pdfjsVersion}/build/pdf.worker.min.js`}>...</Worker>;

Keep the worker version in sync with pdfjs-dist version

See also