Page Peel Help Request (not again)

[dcbyrne Profile Private message]

Hello Everyone,
I could use some help please. I need a page peel PNG that will move diagonally from right to left or left to right, stright across the page.. I can always flip it in PhotoShop. I have one that moves from corner to corner (upper left to bottom right and upper right to bottom left). I have no idea on how a Png file is made.

Thanks in advance,
Douglas