I have made a fan magazine cover with Gimp (Sunken novels):
I would like to imitate creases, cracks, earmarks, tears (maybe even coffee mug marks) to give it a used, worn-out look. Something like:
I marked the places of wanna be creases, earmark, tears and cracks with black marker. Any pre-made existing filters, script-fus, or maybe another software, web app, or simply a transparent PNG with the creases and tears which I can merge / blend onto the magazine coover?