Adjust Brightness & Contrast Online — Image Editor Free

Fix underexposed or washed-out photos with the MyPDF Brightness & Contrast tool. Adjust brightness, contrast, and midtones to bring out the best in your images — right in your browser.

How to Adjust Brightness and Contrast

1. Upload your image (JPG, PNG, or WebP).
2. Drag the brightness and contrast sliders — preview updates in real time.
3. Download the corrected image instantly.

Adjustment Guide

Problem	Brightness	Contrast	Result
Too dark / underexposed	+20 to +50	+10 to +20	Brighter, clearer
Too bright / overexposed	-20 to -40	+10	Recovered detail
Flat / washed out	0	+30 to +50	Punchier, vivid
Too harsh / contrasty	0	-20 to -30	Softer tonal range

Practical Tips

• Adjust contrast before brightness — contrast changes affect the perceived brightness, so setting contrast first gives you a more accurate starting point.
• Don't clip highlights — if the brightest areas turn pure white, you've gone too far and lost detail.
• Use small increments (5-10 points at a time) for natural-looking corrections rather than dramatic shifts.

What is the difference between brightness and contrast?

Brightness shifts all pixel values lighter or darker uniformly. Contrast increases the difference between light and dark areas, making brights brighter and darks darker.

Will adjustments reduce image quality?

Minor adjustments are fine. Extreme changes can cause banding (visible steps in gradients) and clipping (lost detail in highlights or shadows).

Related Tools

• Sharpen Image — enhance image detail
• Saturation Image — adjust color intensity
• Grayscale Image — convert to black and white
• Compress Image — reduce file size after editing