This might help you:

http://www.imagemagick.com

-Novak

----- Original Message ----- 
From: "Rick Faircloth" <[EMAIL PROTECTED]>
To: "CF-Talk" <[EMAIL PROTECTED]>
Sent: Wednesday, September 10, 2003 9:28 PM
Subject: RE: Image manipulation


> I've seen that cfx_image can resize the dimensions of a photograph,
> I just haven't found anything that tells me whether the tag can read
> resolution (dpi)
> and allow that to be adjusted...
>
> A photo that's 320 pixels wide is a much larger file at 300 dpi than one
> that is 72 dpi...
>
> For example, a 5x7 inch photo at 300 dpi is a 9MB file...at 72 dpi it's
> 531KB.
> And since a typical computer screen can only display 72 dpi, there's no
need
> in
> trying to display a 300 dpi photo when a 72 dpi will be more appropriate.
>
> Rick
>
>
>     >  -----Original Message-----
>     >  From: Doug White [mailto:[EMAIL PROTECTED]
>     >  Sent: Wednesday, September 10, 2003 11:43 PM
>     >  To: CF-Talk
>     >  Subject: Re: Image manipulation
>     >
>     >
>     >  I suggest cfx_image    for resizing on the fly
>     >
>     >
>     >
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>     >
>     >  ----- Original Message -----
>     >  From: "Claude Schneegans" <[EMAIL PROTECTED]>
>     >  To: "CF-Talk" <[EMAIL PROTECTED]>
>     >  Sent: Wednesday, September 10, 2003 10:17 PM
>     >  Subject: Re: Image manipulation
>     >
>     >
>     >  | >>if I want a 300 dpi image (the original) available for download
,
>     >  | >>but want to display a 72 dpi version
>     >  |
>     >  | What does mean "dpi" when the image has been scanned on an
>     >  equipment you don't
>     >  know at a resolution you don't know
>     >  | and it will be displayed on a screen you don't know?
>     >  |
>     >  | Talk pixels, not dpi. All you need to know is that about
>     >  50% of users now have
>     >  1024 pix or more, and most of the rest
>     >  | has at least 800. Within 2 or 3 years it will be 50% 1024
>     >  and 50% 1600 or
>     >  more.
>     >  |
>     >  |
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