Photoshop Question

[Brandonh1091]

I've been meaning to make a thread about this for awhile, and I figured I might as well before I forget again, lol.

Sometime back I printed a batch of NES covers, one being the Ninja Gaiden cover on the site. For some reason it printed much smaller than it should have. I've ran into this problem before printing some of these covers, and I know usually when this problem is brought up in other similar threads, a mod goes in and fixes the dimensions on the original file, so it prints normally from now on. I was wondering if someone could explain to me what causes Photoshop to do this? I'd love to know, so next time I can just go in and fix whatever is causing it myself.

[ShoothimNow]

They fix either the dimensions to make them back to their norm, or change the DPI back to 300 instead of something different

[tiktektak]

Ok a quick expalanation of what is the problem with such files.

Most of those files are just plain wrongly dimensioned. Don't ask my how that happens everyone should double check dimensions before upping but it does.

Such files when you check their dim. in ps are only 72dpi but huuuuuuuuuuge in pixel dimensions.

So what we or at least I do when fixing such a pic is just changing the dpi to 300 and the pixel dim. to the dim. they should be again (3366 x 2100 for a UGC cover for example).

Doesn't that destroy the picture quality you may ask now. No is the answer because actually nothing happens to the images size. The cover has the same size (inch) no matter if you have many pixels and low dpi or less pixels and high dpi so it just prints wrong but changing everything doesn't alter the pictures quality.

Hope that was at least a bit understandable. I'm confused now.