Useful Image board reference materials program/app

Discovered a useful bit of software for use as a photo/image reference board.

It’s called Pure Ref and is available for a donation value of your choice or free from here:
Available on Windows, MacOS X and Linux.

Here’s a video showing you how to use it:

I’ve just started compiling a trompe l’oeil page for a series of paintings I have to do.

Hope some of you find this useful.

Happy painting!