Showing posts with label image size. Show all posts
Showing posts with label image size. Show all posts

Monday, July 30, 2012

Understanding Photoshops Image Size

I've long wondered why Photoshop displays a much larger size of an image than it really is. For example, I opened this barn photo which is in a .jpg format and is just over 2 MB in size.
However, Photoshop is telling me that the photograph is just over 6 MB under the Image Size. I didn't understand why Photoshop displays a much larger size for the image than it actually is.
I learned that Photoshop is showing me how large the image would be if I saved it again in an uncompressed native .psd file. Photoshop adds a lot of additional information/overhead in its native format that I wouldn't need when saving it as a .jpg file.
Now, finally this is making a little more sense when I see such a variation in file size! I hope this helps you too.