Canvas offers several ways to change an image's appearance. The most useful decision comes before the sliders: should the change stay separately editable, or should it become part of the pixels?

Keep Color Changes Adjustable

An adjustment layer changes the combined appearance of the layers below it. The source layers remain available, so you can revise the adjustment or turn it off after comparing the result.

Choose Layer > New > Adjustment Layer, then select the adjustment that fits the task. Its controls depend on the recipe:

Channel Mixer is also available for working with channel contributions. Use the supported histogram and sample-point controls when they help judge a tonal correction.

Layer order matters. An adjustment placed above a photograph and below a headline changes the artwork beneath it while leaving that headline outside its effect. Moving the adjustment can therefore change much more than its sliders do.

Zoom out to judge the whole composition and inspect at actual pixels before final delivery. The working preview at smaller zoom levels can be simplified for responsiveness; the exported artwork uses the source resolution.

Apply a Change Directly to Pixels

The Image > Adjustments commands preview an adjustment on an eligible visible, unlocked raster or image layer. Accepting the preview changes those pixels. Canceling leaves the source unchanged. An active selection limits the supported adjustment to its covered area.

Use this route when the correction should become part of the layer. Duplicate the layer first if you want an easy way back to the unadjusted version. A closed Smart Object is not an eligible direct pixel target; edit its contents or decide whether to rasterize it.

Style a Layer Without Repainting It

Layer Style adds effects such as shadows, glows, stroke, bevel and emboss, or color, gradient, and pattern overlays. Preview the style, then accept it or cancel the draft.

Blending Options controls how the layer participates in the composition, including the supported Blend If thresholds and color-channel choices. Fill opacity and overall opacity can produce different results when styles are present, so compare both in the artwork rather than treating them as interchangeable.

You can copy a style to another eligible layer when several elements should share the same treatment.

Use Filters for Pixel Effects

Supported filters include Gaussian blur, sharpening, noise, mosaic pixelation, grayscale, and brightness. Preview the effect on the eligible layer, adjust it, then apply or cancel. Supported filters respect an active pixel selection.

The last accepted filter can be repeated on a compatible target. Other familiar menu entries, including several advanced distortion and specialist filters, remain disabled.

Common Questions

Why did an adjustment change more than one layer?

An adjustment layer affects the composite beneath it. Move it in the stack or choose a direct pixel adjustment when you need to change one eligible layer only.

Why can I not apply a filter to my headline?

Editable text is not a pixel layer. Keep it editable and use a layer style, or deliberately rasterize it before using a compatible pixel filter.

Does a preview mean the change is already saved?

No. Accept a preview to commit the edit, then allow the Canvas save to complete. Saving and sharing explains that distinction.

Try Mask and adjust an image to combine selective visibility with a reversible color treatment.