Thank you TIG. I can now access the original PNGs. I would never have found the "watermark" trick!
So bad the text is in a bitmap and is no more modifiable (except if you have the original bitmap file).
Is there a way to add onto the "post-it" texts by SU instead of by an external image editor ?

Hi all,
I would like to display a "postit" comment in my skp drawings like the example below.
Can anyone tell me how to do that please, I've tried to do it for hours to no avail.