How to show transparency in PDF?

[Garamont]

Hi,
I found this ancient topic: viewtopic.php?p=157246#p157246
but I thought I'd start a new one...
Is it possible to show that a PDF uses transparency, e.g. by replacing the transparent areas with a checkerboard pattern?

Thanks for all the good work!

[xnview]

currently not possible with ghostscript

[Garamont]

OK, thank you for the info!