Photo image : size reduction software

HI !
I want to reduce sizes of photo images i.e. jpeg, gif files of few GB's into less than 100KB. Need free / paid software compatible to MAC OS X 10.6.8.

Do you really mean image files of a few Gigabites? I doubt there are many apps that can handle that size of an image file and the machine would have to have many GBs of memory to even consider using it? Was that a type and you mean a few MBs?
Going from 2 GB down to 100 KB or less is nearly impossible and still get a decent image. This is an 4.3 MB file compressed to 100 KB with no reduction in the image (pixels) size.
This is the original file:
Click on them to see what they look like full sized. The edited version is showing pixelation in the sky and other areas.
This was done with iResize at 15% quality (jpeg compression) level. It was the only file resize I had that would get it down below 300 KB. Even Photoshop CS3 couldn't get it down below 230 KB.

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I'm trying to create a simple card in iPhoto 11 and am having some difficulties.
The various card themes have several layout options. Each option requires a certain size image (or sizes - some layouts are for more than one image).
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I'm not clear on whatyou are not clear on
You simply drag photos to the enpty photo frames in the template - there are move and pan controls if you want to change the position of the photo - you can reight click on a photo and select "fit to frame" in most themse if the photo ratios do not match teh frame ratios and yo are losing parts of the photo
the only "resolution" concern you have is that the photos are at least 180 DPI and if they are not you will get a warning
"Note: A yellow warning triangle with an exclamation point in the center may appear if the resolution is too low (below 180 DPI)."
The article you referenced gives Minimum pixel sizes for various uses - if your photo are that size or larger you are fine
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Image Size reduction and gain resolution... Help?

I have searched the forums and seen plenty of talk of Image Size and resolutions but havent stumbled upon what I need.
Hopefully someone will be nice enough to help me or to link me to help?
I have a large photo (3456x2304) but it is at 72ppi.
I am trying to use it as a very small image (200px or so) but I need it at 300ppi.
I keep going into Image Size and reducing its dimensions to the size I need and marking 300dpi.
Problem is when it resizes it gets horribly pixelated!!!
I cant figure out how to use the image size and/or crop tool in order to reduce the dimensions and not lose quality.
Best work around I have found is to reduce it to about 750px 72ppi and then in illustrator contract the image to the actual print size while gaining resolution...
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There is a relationship between image size and ppi (resolution) that can not be changed. Here is an example from the web titled "understanding resolution".
Let's say you have an image that is 9 inches wide and 6 inches high with a resolution of 240 pixels/ per inch (8.9mb file). If you change one of the values the other two will change (resample image turned off). In this example if you changed the width to 6 inches the height would become 4 inches and the resolution would become 360 ppi.
So if you are taking a large image and reducing the size the ppi has to go up. There are the same number of pixels in the picture, they are compressed into a smaller space. The article says this is because a digital image has no absolute size or resolution. All it has is a certain number of pixels in each dimension.
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Certainly upon my N95 about 750kb about the norm when image size set to 5MB. Although this post gives information upon silencing camera tone, it is beyond remit of this manufacturers sponsored forum to discuss it's implementation here, as means negating platform security to do so: http://thehandheldblog.com/2009/07/13/how-to-disable-camera-sound-on-your-nokia/
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Thanks for the reply Jon, but unfortunately I ended up with the same result as MTSTUNER said (using the Crop Tool).
MTSTUNER, that definitely helped. The problem must have been in pasting, which as you said brings a "non-smart" image over. I was even able to resize a bit on the new document without losing any clarity whatsoever. Very helpful - THANK YOU!

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What are the pixel dimensions of these images? download a few to the desktop using image Capture (in your applications folder) and report the pixel dimensions of the originals
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Hi,
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>> Are you sure?
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Smtr,
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Comments?
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Are you by any chance saving as a JPEG or TIFF file?
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Photo image : size reduction software

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