[muglo] Re: file size

Also, Theresa, it isn't clear whether the JPEGs you're producing are oversize 
in their compressed JPEG form (the size you'd see if you did a Command-I on 
them), or in the form they assume once they're opened in a program like 
Photoshop.

For instance, I just picked one of my JPEGs at random and did a Get Info on it. 
It's 484 kilobytes. But when I opened it in Photoshop, it was 5.66 megabytes. 
The degree to which the JPEG format compresses images is variable, depending on 
the sort of image you have; one with a whole lot of clear blue sky and just a 
few distant trees will compress more than a shot of a forest interior. The 
compression algorhythm says to itself: "Ho-hum, solid blue sky from here to 
there, just the one setting will do for all of that; no need for any more 
calculations (and disk space) till we get over into the foliage and things get 
complicated again."

I presume the 1 megabyte limitation is on the JPEG compressed size. The only 
way to meet that without sacrificing more resolution than you need is to see 
how much over the limit each JPEG is, then open it in Photoshop, Photoshop 
elements, GraphicConverter or whatever, see how big it is there, resize it by 
an equivalent percentage, save and close it, then go back and do a Command-I on 
the recompressed JPEG. After a little experimenting, you'll be able to come 
pretty close with a single pass per image.  

--- On Sun, 8/31/08, Theresa Roth <theresaroth@xxxxxxxxxxxx> wrote:

> From: Theresa Roth <theresaroth@xxxxxxxxxxxx>
> Subject: [muglo] file size
> To: muglo@xxxxxxxxxxxxx
> Received: Sunday, August 31, 2008, 1:59 AM
> I have to upload jpg files no larger than 1 MB but when I
> scan the 
> images, it is 11.2 MB.
> 
> How do I scan the image and end up with 1MB?
> 
> HP deskjet 4600
> OSX 10.3
> G3
> Safari
> 
> Theresa
> 
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