Hi, I'm a novice at After Effects and I'm trying to do an effect which has confused me.
I have a hand drawn image that has been drawn on paper and scanned in. I then opened the image in photoshop and used the clone stamp tool to remove the pen marks on the page. So now I have 2 images, the drawing, and one that looks like a blank piece of paper.
I want to make the pen slowly appear on the paper as if it's being drawn by someone. I thought maybe the paper image could be animated to crop over time, but I can't see an effect to do this so I'm not sure what to try next.