Note or warning if JavaScript is present

[Marmotian]

I use SumatraPDF specifically because I feel that it's limited feature set makes it more secure. I assume that the ability to execute embedded JavaScript is a potential security landmine which is why I'm happy that SumatraPDF doesn't execute it.

However, I'd like to be warned that a PDF I'm opening has JavaScript in it, both as a security heads-up and as an advisory that the PDF may have desirable features such as fillable forms that I need to use a different viewer to access.

[GitHubRulesOK]

Hmm MuPDF viewer does support some JS for formfilling etc. (Without warning)
However that is not enabled in SumatraPDF, and fields dont turn blue either.
Thus the only warning is if XFA is present which in theory should present a warning front page but many dont!
Acrobat and others that are JS enhanced should raise a warning that JS is present and offer to not run it, thus no need for warning when not present !!

Forms as white are admittedly an issue. It is not clear these are 3 form field areas

Where IMHO redirection to Acrobat should ALWAYS be the suggestion as many were and still are are very proprietary.