How Photoshop Actions Actually Work (And Why Most People Build Them Wrong)
The first action I ever built was embarrassing. I was 26, working in a commercial studio, and I’d just spent an afternoon doing the same sequence of steps on 60 product images: flatten, convert to sRGB, sharpen, resize to 2000px on the long edge, save as JPEG at quality 10. Sixty times. By hand. I recorded the action that evening, ran it on the next batch in about four minutes, and felt like I had unlocked something the rest of the industry was hiding from me.