Duplicating a Photoshop Document

You can duplicate a document on the fly. The Image ’ Duplicate function will produce an exact copy of the document along with its layers and alpha channels. It is useful for quick experimentation when you don t want to affect the original image. The new file, which by default is given the original filename plus the word copy , is unsaved and exists only in memory. If you plan to keep the duplicate file, it is wise to save it immediately. Click on the Duplicate Merged Layers Only check box if you want to combine the visible layers into one merged layer in the new document.