There are numerous versions of photoshop because adobe upgrades the software for every version that comes out. I have the new Photoshop Cs5 and there are many differences from Photoshop Cs4.
I hope I answered your question
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Yes you can download photoshop trial versions
Yes, Adobe supports both Windows, and Macintosh versions of Photoshop.
No, you may get a trial of Photoshop from the Adobe website, but all current and previous versions of Photoshop are paid software.
Image Ready was Photoshop plug-in in earlier versions. Photoshop is image editing software.
Current is 12th version.
Yes, Windows 7 can run all versions of Photoshop
Adobe Photoshop has had several code names throughout its development. Notably, versions were referred to as "Lola" for Photoshop 5, "Coyote" for Photoshop 6, and "Dark" for Photoshop 7. More recent versions have been named "Stone" for Photoshop CS3 and "Clover" for Photoshop CS6. These code names often reflect themes or concepts relevant to the development team during the version's creation.
All of them, the Macintosh computer was made for graphics and picture editing programs such as Adobe Photoshop.
To move from Photoshop 7 to CS4 will require a purchased full copy of Photoshop CS4 as there is no upgrade available for versions of Photoshop older than 8 - the first CS version.
No, there are Windows and Mac versions but they are separate.
There are several versions of Photoshop; Photoshop CS3 is aimed at professionals, Photoshop Elements at amateurs. Neither is free software. There is an online version (Photoshop Express) which is currently in beta and this is currently free of charge.
copy brushes and go to C:\Program Files\Adobe\Adobe Photoshop CS4\Presets\Brushes and paste there.it will work and for other versions of Photoshop