New camera-have question on Adobe Photoshop Elements

Excuse the newbie question.
I have a new Sony W90 digital camera as a low cost way to get into
digital photo just for fun. Nice camera for the price.

It saves pics as JPG's. There is no option to save as RAW or TIFF on
the camera.
http://www.dpreview.com/reviews/specs/Sony/sony_dscw90.asp

If I bring the picture into Photoshop ELEMENTS and save it after some
changes I made, I resave it under a different name with a save jpg
quality of 12 (which I believe could mean no compression). There is no
save choice for no compression.

I noticed that the file size actually increase from 94kb (sample image
on PC, not a print quality photo) to 127k when I save the file under a
different name.

I assume that Adobe is adding some data to it and that increases the
file size.
1***Any thoughts?

I would then normally take the JPG picture (not the one described
above) to CVS, Eckerds, Wolf/Ritz, or send it online for printing.


****2. Not sure what other formats the chain stores or online photo
places accept beside JPG??


Thank you very much for this basic question.
Patty

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