Reducing file size

Discussion in 'Photoshop Tutorials' started by Chuck Jurgens, Aug 27, 2007.

  1. I have created a 3 1/2" x 2" business card layout in 600 dpi resolution. I
    converted it to a flat file but the file size is still 14M !!

    In the past I have been able to reduce this SAME layout down to 3.5M (in
    ..psd) but I can't remember how to do it.

    Any suggestions?
    Chuck Jurgens, Aug 27, 2007
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  2. Chuck Jurgens

    RC_Moonpie Guest

    you might try to bicubic downsample it to 300 dpi. Without seeing your
    design, thats your call, but often, imagesetters will sort of do the
    same thing, depending upon how sophisticated they are... some cant use
    600 so its overkill, 300 is fine.

    that'll go a long way to getting you down to size
    RC_Moonpie, Aug 27, 2007
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  3. Chuck Jurgens

    tacit Guest

    Unless your image contains alpha channels, that's not possible. A 3.5x2"
    image at 600 pixels per inch is 7.2 MB RGB, or 9.6 MB CMYK.

    In any event, 600 pixels per inch is overkill for a business card; even
    for offset printing, it need not be more than 300 pixels per inch.
    tacit, Aug 27, 2007
  4. Chuck Jurgens

    jjs Guest

    It's over the top big. Regardless, the printing device will lower the
    resolution/bits to its native settings. Oh, and to CMYK, too.
    jjs, Aug 28, 2007
  5. Although not directly relevant to your problem (designed for printing),
    for anyone else reading this, I am amazed at how good PSE 'Save for web'
    algorithm is.

    My processed files are often 14Mb - I then reduce them to 1200 pixels
    (around 2.5 x linear reduction (ie. 1/6 the file size) and save for web
    at the 10% level. this ends up with a file between 60 and 150kb of
    remarkable quality.

    Ideal for sending friends and relatives. Look at 'original size' photos
    on my Flickr pages. (It's not 'original' of course!!)


    [The reply-to address is valid for 30 days from this posting]
    Michael J Davis

    Pictures at
    For this is what the Lord has said to me,
    "Go and post a Watchman and let
    him report what he sees." Isa 21:6
    Michael J Davis, Aug 28, 2007
  6. Perhaps in the past you used 8bit and now you use 16bit channels? Makes
    big difference in file size.
    Dawid Michalczyk, Sep 1, 2007
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