Software
iPhoto & Aperture: Warning icon when ordering photo products
You may notice a warning icon appears next to pictures when the resolution may be too low for a quality print at a given size, or next to a text caption when text overruns the border.
About the “Open iTunes to populate this list” message in Aperture 3
When you use Aperture 3 in OS X Yosemite, you might see the message “Open iTunes to populate this list.” This happens when you select iTunes in the Slideshow Music source list. Opening iTunes does not fix the issue.

iPhoto and Aperture don’t have edits to photos you import from iOS 8 devices
You can edit your photos on your iPhone, iPad, or iPod in the Photos app on iOS 8. However, when you import photos you've edited to your Mac using iPhoto, Aperture, or Image Capture, the edits you made aren't imported.

Optimize Aperture 3 for the best-looking slideshows
Learn to optimize your Aperture settings to get the sharpest image quality in your slideshows.
Apple Photo Services: Product line details for books, cards, and calendars
Get product line details for books, cards, and calendars fro Apple Photo Services.

Aperture: Color and gamma settings for print and web
When making decisions about the color of your photos, it is helpful to be aware of what the final output destination will be. For example, if you intend to publish your photos to a web site, you will treat them … Continue reading
Aperture: How to crop images for print orders
When you place print orders from Aperture, it’s important to make sure the aspect ratio of your images matches that of the ordered prints. If your image doesn’t have the same aspect ratio as the print you order, then the … Continue reading
iPhoto, Aperture: Scanning tips for converting printed images to digital images
The following tips will help you successfully convert your printed images to digital images.
Aperture and iPhoto: Editing billing information
If you need to change your billing information for your Apple ID, follow these steps.