I am a complete newbie to Photoshop and need a touch of help. If I make an image transparent, I can't seem to save the image as a jpeg, as it defaults to a photoshop type file. Can I save it as a jpeg in Photoshop, or do I need to somehow convert the file?
When first starting out, I spent a week, figuring out I couldn’t have transparency in a jpg. Poking around other peoples sites, I noticed alot of .gif's used where transparency was used, saved my file as gif and been doing it ever since. Still I wonder why no transparency in jpg's.
As shanz says jpgs do not support alpha channels. Only gifs and pngs can have transparency on the web. An easier way to save your file for the web in photoshop if you use 5.5 or higher is save for the web. It will not make you flatten images or even effect the source picture. You have a lot more control over conversion and compression in this dialogue.