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
    print.

    Thanks
     
    Kobe Fried Rice, May 4, 2011
    #1
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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

    JR
     
    R2D3, May 8, 2011
    #2
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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
    #3
  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
    #4
  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
    #5
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