How to Edit, Crop, and Brighten Photos on Your Phone

Your phone has powerful built-in photo editing tools. Here is how to straighten, crop, adjust brightness, and remove red-eye — no special app needed.

In this guide (4 steps):

1.Open the edit tools on iPhone
2.Crop and straighten a photo
3.Adjust brightness, contrast, and other settings
4.Basic editing on Android (Google Photos)

Open the edit tools on iPhone

~32s

Open the Photos app and tap any photo. Tap "Edit" in the top right. The editing toolbar appears along the bottom of the screen with three sections: Adjustments (sliders for brightness, exposure, contrast, etc.), Filters (preset looks), and Crop (crop and straighten tools). Tap each icon to switch between sections. Tap "Done" to save your edits, or "Cancel" → "Discard Changes" to undo everything.

Quick Tip

Quick Tip: To revert any photo back to its original state after editing: open the photo → tap "Edit" → tap "Revert" at the bottom right. This works even weeks or months after editing.

Crop and straighten a photo

~24s

Tap the crop icon (a square with arrows) in the editing toolbar. A grid overlay appears on your photo. Drag the corners to crop the photo to a tighter frame. To straighten a crooked photo: use the rotate dial below the photo — drag left or right to tilt the image until the horizon looks level. Tap the flip icon (on iPhone) to mirror the image horizontally. Tap "Done" to apply.

Adjust brightness, contrast, and other settings

~33s

Tap the adjustments icon (dial/slider symbol). A row of adjustment tools appears at the bottom: Exposure (overall brightness), Brilliance (auto-enhance), Highlights (bright areas), Shadows (dark areas), Contrast, Brightness, Saturation, and more. Tap any adjustment to select it, then drag the slider below the photo left (less) or right (more). For a quick fix on a dark photo: increase Exposure and Shadows. For a washed-out photo: reduce Highlights and increase Contrast.

Quick Tip

Quick Tip: Tap "Auto" (the magic wand icon) for a one-tap automatic enhancement. iPhones analyze the photo and apply corrections automatically — it is a good starting point that you can fine-tune afterward.

Basic editing on Android (Google Photos)

~24s

Open Google Photos → tap a photo → tap the three-line Edit icon (or "Edit" button). Four editing sections appear at the bottom: Suggestions (auto fixes), Adjust (brightness, contrast, etc.), Filters (preset looks), and Crop. Tap "Adjust" to see sliders for Brightness, Contrast, White Point, Highlights, Shadows, and Warmth. Tap "Crop" to crop or rotate. When satisfied, tap "Save copy" to save the edited version (the original is preserved) or "Overwrite" to replace.

You Did It!

You've completed: How to Edit, Crop, and Brighten Photos on Your Phone

Need more help? Get Expert Help from a TekSure Tech

You do not need a separate photo editing app to make basic improvements to your photos. Both iPhone and Android have capable built-in editing tools in the Photos app that let you crop and straighten images, adjust brightness and contrast, correct color, reduce noise, and apply filters.

Best of all, edits on both iPhone and Android are non-destructive — you can undo any edit at any time, even years later, by tapping "Revert" or "Undo edits." The original photo is always preserved.

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