function V8FeaturesAvailable: Boolean;
Returns True when the loaded PDFium build embeds the V8 JavaScript engine.
Some PDFium DLL variants ship without V8 to reduce footprint; JavaScript actions then become no-ops.
Class function; safe to call before any document is opened.
IsTagged is False).
if Pdf1.Active and Pdf1.V8FeaturesAvailable then
Memo1.Lines.Add('V8FeaturesAvailable = True')
else
Memo1.Lines.Add('V8FeaturesAvailable = False');