Add transparency to background images (loaded from PDF)
I have parts of the building on different pages of a PDF document. I want to combine them to make the full building but for that, I need to add 50% transparency to these background images.
Michael Berna commented
I would like the same, but for png as well. PNG natively supports transparency, so I don't think it's a very tall order. The use case is when I want to overlay an interior building plan over google maps, so I want the part between buildings or if the building isn't perfectly square, anything outside of the exterior walls to be transparent when I make it transparent in my image editor and import. Currently transparent imports as black.