How can you get an image's resolution information in OS X 10.3?

Get the latest version of FireFox, which is compatible with 10.3.9. The last contextual menu option when you right-click an image is "Properties."

Right-clicking in Safari 1.3.2 (will try v3 later today) and Camino do not give this option.

You already may know this, but you can get a right-click from a single button Apple mouse by holding "control" as you click.

Hi Daniel,

You can sometimes get that information in Preview. Open any image in Preview and press Command+I. Depending on the image type (doesn't seem to like EPS files), it will list "Image DPI:" as one of the fields under the Summary tab. I don't know why, but you don't always get a number there. I dragged various images out of Safari onto the desktop and opened them in Preview. Some show a resolution or 72 dpi. Others, like Allan's avatar only shows a -.

Photoshop will of course always give you a resolution, as will the much less expensive Photoshop elements. A piece of shareware that gets used by a LOT of people on the Mac side is Graphic Converter. I don't use it myself, but you could download and give it a try. It may correctly show an image's current resolution.

I think that you can get that info by selecting the photo and clicking on the little "i" in the lower left hand corner of the iPhoto window.

Hi, Daniel. The Finder doesn't know anything about the resolution of an image file — that's why you can't ask the Finder to display it. Resolution simply isn't a Finder-accessible attribute. You need to use an image-editing, -viewing or -browsing application to display an image's resolution on a Mac. There are dozens of such apps to choose from, ranging from freeware to Photoshop, and they all work differently and have different capabilities from each other.

Let me add that an image's dimensions (length and width, in cm or inches) are meaningful only when it is printed. They have nothing at all to do with how it is displayed on a computer screen. And similarly, the image's resolution expressed in ppi (pixels per inch) is meaningless except when you're printing it, since the size at which you print it literally determines its ppi.

What is far more meaningful to know about an image is its dimensions in pixels, e.g. 1024 x 768, 1680 x 2240, etc., since those pixel dimensions are what actually limit the image's visual quality at any given size, both on a computer display and in print. The image's file size in KB or MB can also be useful, although if the image has been compressed into a .jpg file, its file size may be misleadingly small.

Message was edited by: eww