Edit mode in Lightroom CC on a mobile device provides a comprehensive set of tools for you to enhance your photos. Tap to open a photo from the library or from an album and choose Edit mode:

Crop and straighten photos to improve their composition. Tap Crop and choose a fixed aspect ratio from the menu, or drag the handles to use a custom ratio. You can also use the rotate dial to straighten your image. Tap the checkmark to accept the changes.

Use presets to apply a unique look or filter effect to your photos. Select Presets from the adjustment menu. Choose from one of the Preset categories — such as Creative, Color, or B&W — and then select a preset. Tap the checkmark to apply the preset.

It’s common to want to improve the light in a photo. Tap Light, and then adjust the Exposure and Contrast sliders to make your photos pop. Increase highlights and darken the shadows to create more contrast in the bright and dark parts of your image.

If the color in your photo doesn’t reflect the vividness of the original scene, tap Color and adjust the Temperature slider to create a warmer or cooler image. Use the Saturation slider to increase or decrease the intensity of the colors in your photo. Be careful not to oversaturate your image — the colors can easily become too intense. An alternative is to use the Vibrance slider, to focus on increasing the intensity of the more muted colors in your photo.

Photos contain a lot of details that are worth enhancing. Tap Effects, and then experiment with the Clarity slider to add (or remove) contrast to the midtones of your photo. Often this brings out detail in the textures of your image. The Vignette slider darkens or lightens the edges of your photo. Slide it to the left to darken the edges and put a subtle focus on the subject in the center of the photo.

Photo editing is an experimental process. To undo changes you’ve made to your image, tap the undo icon. Tap and hold to reveal the redo icon. To fully reset an image to its original state, tap Reset at the end of the adjustment menu.

Tap and hold the before icon to compare before and after versions of your photo as you edit. At any time you want to stop and sync your edits you can tap the cloud icon.

All edits you make in Lightroom CC on a mobile device are reflected in Lightroom on your desktop and the web. Any changes you make in the desktop or web version are synced to mobile as well.