The difference between "Merge" and "Flatten" in terms of the file size

Discussion in 'Photoshop' started by Kobe Fried Rice, May 4, 2011.

  1. All I have this 2gigs of a photoshop file.
    I notice that Merging and Flattening give me a different file size.. a
    huge different,
    Merge: 850mb
    Flatten: 150mb

    What is the difference? I don't have any transparency. And this is for

    Kobe Fried Rice, May 4, 2011
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  2. Kobe Fried Rice

    R2D3 Guest

    With Flatten, you merge all layers

    With merge, you merge a layer ontop on another like merge layer 9 on layer 8

    Hope this will help

    R2D3, May 8, 2011
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  3. i tried this myself out of curiosity. and i got the same end result
    from flatten and merge.

    psd was just shy of 8mb
    both saved jpg's at level 8 were 695k

    so not quite sure why youors would differ, i did try it on cs5
    david johnson, May 11, 2011
  4. There's also "Merge Visible", but all processes, if carried to have just one
    layer, end up the same size.
    Sir F. A. Rien, May 11, 2011
  5. Kobe Fried Rice

    Carrie Guest

    This is interesting about the file, merge, flatten etc. and sizes.
    I never really knew the difference, I mainly just flatten before I
    save, or if I'm going to do something that needs all on one layer. I
    have PS CS3 and mainly "self taught" (with a lot of help from
    tutorials and groups)
    Maybe the different sizes of the files is because of the quality
    they are saved at? Like when you save a new file it has a setting for
    low, medium, high?
    Carrie, May 17, 2011
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