Emailing photos in Mail.app
MegaPixel Maven posts a tip on resizing photos 
in Mail.app using the “Image Size” drop box in the bottom right-hand corner of the Compose window.
As the author points out, you can use this function to reduce an image in the Compose window to Large (1280×800 pixels), Medium (640×400) or Small (320×200) sizes.
Three points:
- Mail does a really bad job of reducing the image. Rob Griffiths ran some tests on this when the tip was posed on macOSXHints last year. He discovered that Photoshop is between 61% and 73% more efficient at the same tasks. Even iPhoto itself does a better job.
- Another option is to use a utility like Downisze or Scale to Mail, which will resize your images efficiently without the need to fire up a monster like Photoshop.
- If you use Claris Emailer, GyazMail, Mailsmith, Outlook Express, PowerMail or QuickMail Pro, Simon Jacquier’s iPhoto Mailer Patcher lets you hack iPhoto to set your email client as the recipient of resized photos. Instructions can be found in an earlier Hawk Wings post.
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March 6th, 2007 at 1:24 pm
There seems to be a bug in Mail, or at least my use of it. I drag a *.tiff to the app to create an e-mail with the picture inserted. After I choose a new size (to reduce the image size), the image appears as a sequence of vertical bars, with a repeating color pattern (6 bars, 3 unique colors, and a 7th incomplete bar restarting the pattern).
I imagine the 3 different colors represent the RGB values; each vertical bar is a strip of the photo (the same left-most strip).
Any ideas?