Hi Floren,
Just to let you know that this works on v 3.5.x with no changes apart from editing the product to remove the version dependancy. I works great.
Only one thing I would request, as some others have requested, is to add a label/notice to let people know that it is a resized image. This is not urgent, but would be a great help for people who do not read announcements or bbcode descriptions.
Thanks