Hello all you knowledgeable people! I have a question about saving images. When you submit a photogr

Discussion in 'Photography' started by Scotius, Jun 28, 2010.

  1. Scotius

    Scotius Guest

    ...and they want it in 300 dpi, how do you save it so it's set
    at that? I have looked through Photoshop and not found how to do it
    (this was a few years back), and also looked through GIMP and not
    found the info. How do I determine what dpi resolution it's saved at?
    Thanks in advance. I know someone knows; it just isn't me.
    Scotius, Jun 28, 2010
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  2. Scotius

    Scotius Guest

    That sounds good, but 300 pixels per inch is pixels per inch,
    and not dots per inch, isn't it?
    Scotius, Jun 28, 2010
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  3. Scotius

    Joel Guest

    In general 300-DPI or whatever doesn't mean much, or whatever PPI usually
    depend on the *original* photo you have, as well as the SIZE you want to
    print. So

    - If your photo is 3000-PPI for 4x6" print then just leave it alone. Or you
    do not need to lower the quality of whatever the original may be.

    - If your photo is around 150-PPI for 40x60" print then it should be fine
    for most printers. I know many photolab asking for 300-PPI, but some
    mentions between 150-300 PPI.

    I have printed quite afew 24x36" at 140-150 PPI and they all turned out

    - If you have Photoshop and want to enhance the print then you can use the
    built-in "Enlarge" feature to enhance the pixel which will increase the size
    as well as the PPI (I think but didn't pay close attention to this).

    You just select "Image Size" (I think it's the correct name?), but DO NOT
    mess around with other regular setting *but* selecting the very first
    option, then change to "PERCENTAGE".

    100% is the default setting, and if needed you can try 150% or 200% and
    that would do.

    I do not own the 3rd party utils like OnOne Genuine Fractal, PhotoZoom,
    Blow-Up etc. but the built-in works similar to those. I read these cost
    around $250-300 a pop, and I don't have extra $$$ for them so I use the
    Photoshop's built-in instead.

    And if you want to know where to find the info, then you can look at the
    info from "Image Resize" (or Image Size?) and the info will display at the
    bottom of menu. And many graphic viewers have option to display the info
    Joel, Jun 28, 2010
  4. Scotius

    Matti Vuori Guest

    wrote in :
    There _is_ _no_ difference for anyone to see!

    The numbers don't mean anything. They are just symbols that tell that the
    manufacturer considers one camera a more professional than the other. The
    ppi number results from the size of the photo when it is laid on a screen
    or printed on paper: just divide the width in pixels with the width of
    the print in inches. It the result is at least 300, everything is ok.
    Matti Vuori, Jun 28, 2010
  5. Scotius

    Joel Guest

    Dot Per Inch, Pixel Per Inch, Line Per Inch are different words but pretty
    much the same thing.

    DPI = was based on the monitor displaying and ink from inkjet printer. After
    awhile, or after the improvement of monitor and printer DPI no longer making
    sense so most people drop the "DPI" and replace with "PPI"

    LPI = Line Per Ink was the term used by the PRESS, or the press don't use
    DOT or PIXEL so if you send your print to the press then they use LPP

    And even the above SOUNDS GOOD but it won't make thing any better or
    difference. It's pretty much like you have 1 dollar bill, then you have the
    option to have

    100 pennies
    20 nickels
    10 dimes
    4 quaters
    2 50 cent coins
    1 dollar bill

    They have different number but exactly same value, but can be used for
    different things

    COIN = can be used as screw driver or similar
    BILL = can be used to roll a join
    Joel, Jun 28, 2010
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