Not every photo taken is a masterpiece; some are upside down, or sideways, or have extra "scenery" that you didn't choose to include. For these issues, the Android gallery app offers a few simple editing tools to help correct image orientation and tidy up photos.
Getting to the editing menu:
Open a picture from the gallery and then press the menu button. This menu is only available when previewing a photo by itself. Now, select More from this menu.
Editing choices will appear in the new pop-up menu, such as Details, Set as, Crop, Rotate Left, and Rotate Right. Not every version of Android has all the same choices, so the list of tools may be shorter or longer.
"Set as" lets photos be used for contacts or as wallpapers. Although contact photos can also be added from the Gmail Contacts interface online, this is a much faster method, without having to locate and upload a photo for a contact. The entire process can be done in roughly 30 to 60 seconds--from taking the photo to cropping if necessary and finally assigning it to the correct contact.
With the Crop command you can remove the extra scenery (such as random strangers or embarrassing or confidential items) from the photos you want to keep or share. Once Crop is selected on the menu, a box will appear in the middle of the photo. This box can be adjusted to be wider, taller, or both. To do this, simply press on one of the sides of the box and slide it in the desired direction. The entire box can also be moved around the photo after a desired crop size is selected. Once finished, press Save, and a new photo will be created from the cropped selection. The original photo will remain in the gallery for additional editing or sharing.