Saving An Edit History Log To Image Metadata In Photoshop CS2
Most of the time that I work with an image in Adobe Photoshop CS2 the edits made are reproducible with little effort and in these cases I like to flatten images (Layer –> Flatten Image) in order to save space before saving as a tiff or a psd file. Even a flattened 13MP from a Canon EOS 5D
can be 75MB in size.
It’s nice be able to see what changes were made to an image (that may well have long since been flattened) and in order to do this I like to save a detailed history log to the metadata of each image by tweaking Photoshop’s preferences under Edit –> Preferences –> General as follows (see the base of this image for the appropriate History Log settings):
By way of example, the history metadata log from the above image (File –> File Info –> History) reads as follows:
2006-01-23T13:11:52-05:00 File cs2_general_prefs.jpg opened
Open W:\public_html\images\cs2_general_prefs.jpg
Image Size
Image Size Width: 400 pixels
With Scale Styles
With Constrain Proportions
Interpolation: bicubic
Medium Edge Sharpen
Pixel Genius PhotoKit Capture Sharpener Set: “Digital Low-Res Sharpen”
Effect: “Medium Edge Sharpen”
2006-01-23T13:12:34-05:00 File W:\public_html\images\cs2_general_prefs.jpg saved
2006-01-23T14:27:56-05:00 File cs2_general_prefs.jpg opened
Open W:\public_html\images\cs2_general_prefs.jpg
From this one can see that the original screen capture was resized to 400 pixels and then sharpened using PhotoKit Sharpener. Without this information appended to the metadata one would never know that these edits had been done to the image.