dark mode in in-browser pdf reader

[cmdpedro]

Is your feature request related to a problem? Please describe. No

Describe the solution you'd like In the in-browser viewer/reader there should be an option to invert the colours of the pdf, aka dark/night mode.

Describe alternatives you've considered N/A

Additional context N/A

[cmdpedro]

Can someone point me in the right direction? Perhaps I can try to do it myself and share the code.

[cmdpedro]

Solved this using a modified version of pdf.js.

[jrhedman]

Can you share this modification?

[cmdpedro]

Can you share this modification?

Have a look at: https://github.com/janeczku/calibre-web/issues/2150