Adobe Photoshop CS6 is a version of Photoshop that was released as part of Adobe's Creative Suite. It was a significant update that introduced many new features, including the Content-Aware family of tools, which revolutionized photo editing by allowing users to intelligently fill in or remove parts of an image based on its content.
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Purchasing: Adobe Photoshop CS6 can still be purchased from Adobe or authorized resellers. However, since it's an older version, Adobe might not support it on newer operating systems or hardware.
File > Save to save changes to the original file, or File > Save As to create a new file.