Fix error with empty black bages for reports like "Eolus Vind"

[Greenheart]

Is this caused by https://github.com/k-yle/pdf-to-img or something else? It seems like pdf-to-img uses https://github.com/mozilla/pdfjs-dist which uses an old 3.x release of pdfjs, while the latest version of pdfjs is 4.x. This might be possible to fix. It seems like they can't upgrade pdfjs because of the breaking changes and migrating from commonjs to ESM. Perhaps we could make a fork of the library which creates separate ESM and commonjs builds? k-yle/pdf-to-img#234

Could we render and parse the PDF in a different way? For example Google vision API based on an input PDF?

Alternatively, we could use:
https://www.npmjs.com/package/pdf2pic