Screenshots and uploading images

Screenshots on Drupal.org must follow these standards:

Format: PNG-8
PNG is preferred because of its lossless compression and small file size. JPEG is not suitable - it leaves artifacts and its 24-bit color depth is unneccesary when dealing with screenshots. GIF is not used because it is an outdated format.

Size:
700 x 700 pixels is the maximum preferred image size.

Browser window:
All screenshots must include the entire browser window; e.g.: the title bar and scrollbars. Capture only the browser window, not the entire desktop; crop the image in an image utility manually if your operating system or capturing utility can't be set to just the browser window.

Remove all distracting items from your browser application including sidebars, tabs, toolbars, Google bars, custom links, etc. Keep only the URL address bar, and make sure it is long enough that the current URL won't be hidden.

Windows XP:
Turn off ClearType font smoothing when taking screenshots under XP, if you can, please. Most people don't have this feature and it increases the file size somewhat.

Uploading:
Attach the image to an issue; that is, submit an issue (with Category "task") for the page you're updating and attach the image you wish to use. Then reference the URL in the page. At present, this appears to be the best method for regular handbook maintainers.

References:
Screenshots in the GNOME Documentation.