Adding an acrylic gel medium to your digital print

Could you use this method on photography printed on canvas as well, or on canvas paper?
Thank you

I saw this video,it was so helpful.
I want to know should we use the Acrylic gel medium after the painting is finished and dry or before start painting on canvas? Can we paint on this Acrylic gel medium? Is that clear like wood glue?

Thanks
laila

Glad to see that people are getting excited about painting on digital prints! So, here's a bit more information that you may not have received in the video:
At Opus, we print with pigment based inks. This means that once the print has "cured" (by waiting for 24 hours for it to full settle and dry), it is water resistant and you can paint over top of it without disturbing or changing the printed image. You can use acrylic paints and mediums to enhance your print, whether the image is photo based or fine art reproduction. By adding paint and/or mediums to your print, you can bring it to life with texture, glazes of colour, or bright brush strokes of paint. Or, pour on a few layers of Golden's Clear Tar gel to get that thick, shiny resin coat look.
With the wide selection of mediums and paints available at Opus, the possibilities are endless... And I should mention, as with any acrylic paintings and digital prints, you should always finish your work by varnishing it.