Happily Adobe, producer of the omnipotent Photoshop, has released a basic iPhone version for this very purpose. Photoshop Express, available free from the App Store, allows you to perform some of the more basic editing techniques. Cropping, tinting and altering exposure and contrast are included, and it’s really easy to use, making full use of the iPhone’s touch-screen interface. Here we show you how to get started with it, and how to use it to perform some of the more common functions you might need when tweaking your pics.
Step 1: Launch app
To begin editing, tap the Photoshop Express icon on your home screen to launch the app, then touch the Edit tab at the bottom of the screen.
Step 2: Choose import method
Tap Select Photo to use an existing image from your Photo Roll, or take a new one by tapping the Take Photo button to launch the camera.
Step 3: Select photo
From your Photo Roll, tap the thumbnail of the photo you want to edit. It will then appear full screen in the app’s main Edit window.
Step 4: Crop image
The top-left button has options to crop, straighten, flip and rotate. Select Crop, then drag the corners of the rectangle into place to frame your selection.
Step 5: Exposure
Exposure, contrast and other adjustment controls can be found under the button pictured. This image needs brightening, so choose Exposure.
Step 6: Adjust exposure
To adjust the exposure, slide your finger left and right across the screen. Left decreases the value, right increases it. Tap OK when it looks correct.
Step 7: Sharpen
The menu pictured here contains focus-related controls: soft focus, sketch and sharpen. Select a tool, then slide left and right to make adjustments.
Step 8: Beneath the stars
The starry button in the top-right reveals the Border/Effects menu, where you can choose from a selection of one-touch special effects and borders.
Step 9: Save options
When you’re done, tap Save in the bottom-right corner. Save and Exit saves a new edited copy to your Photo Roll, leaving the original intact.