Blur Tool

The Blur Tool allows you to paint blur directly onto specific areas of your image, reducing sharpness and detail. It works by reducing the contrast between adjacent pixels, creating a softening effect that can simulate shallow depth of field, motion, or focus transitions.

This tool is useful for creating a sense of depth by blurring backgrounds while keeping the foreground sharp, softening harsh edges in composites, and reducing the appearance of skin texture in portrait retouching. It is grouped with the Sharpen Tool and Smudge Tool.

Where to Find It

The Blur Tool is located in the toolbar, grouped with the Sharpen Tool and Smudge Tool. It is represented by a teardrop icon. Click and hold the icon to reveal the group, or use the tool's shortcut (if set) via keyboard shortcuts customization.

How to Use

• Select the Blur Tool: Click the Blur Tool icon in the toolbar (it may be nested under Sharpen or Smudge).
• Adjust brush size and strength: Set brush size with [ and ]. Set Strength in the Options bar (1%–100%) — lower values apply subtle blur, higher values apply aggressive blur.
• Paint over the area to blur: Click and drag over the region you want to soften. Each pass increases the blur effect.
• Use short strokes: For natural-looking blur, apply several short strokes rather than one continuous stroke over the area.
• Sample All Layers: Enable in the Options bar to blur based on the combined appearance of all layers.

Settings & Options

• Size: Diameter of the blur brush tip in pixels.
• Strength: The intensity of the blur effect applied with each stroke (1%–100%). Start with 20–50% for gradual control.
• Sample All Layers: When checked, the blur is applied based on all visible layers combined.
• Protect Detail: When enabled, preserves fine details and edges while blurring, reducing the "mushy" look.

Pro Tips

• For natural depth-of-field effects, create a gradient blur using a layer mask: apply a Filter > Blur > Gaussian Blur to a duplicate layer, then mask out the area you want to keep sharp.
• Use a low Strength setting (10–30%) and build up the effect gradually — it's easier to add more blur than to undo excessive blur.
• For portrait retouching, use the Blur Tool sparingly on skin to soften imperfections while avoiding blurring important features like eyes and lips.

Common Mistakes

• Over-blurring: Applying too much blur creates an unnatural, artificial look. Use a light touch and build up gradually.
• Blurring important details: Be careful not to blur edges that should remain sharp, such as the subject's eyes or the main focal point of the image.