How to Invert a Selection in Affinity Photo and Affinity Designer

Selections are like tiny marching ants with a big job. They tell Affinity Photo or Affinity Designer, “Work here, not there.” But sometimes you select the wrong side of the job. No panic. You can flip the selection. That is called inverting a selection.

What does “invert selection” mean?

Think of a selection as a spotlight. The spotlight shines on one area. That area is active. You can edit it, delete it, mask it, color it, or copy it.

When you invert the selection, the spotlight flips. The selected area becomes unselected. The unselected area becomes selected.

It is like saying:

• Before: “Edit the cat.”
• After inverting: “Edit everything except the cat.”

Simple. Sneaky. Very useful.

How to invert a selection in Affinity Photo

Affinity Photo is the main place where you will use inverted selections. It is great for photo edits, background changes, masks, and retouching.

Here is the easy method:

1. Open your image in Affinity Photo.
2. Choose a selection tool. Try the Selection Brush Tool, Flood Select Tool, or Freehand Selection Tool.
3. Select the thing you want first. This could be a person, sky, shirt, dog, pizza, or anything else.
4. Go to the top menu.
5. Click Select > Invert Pixel Selection.

Done. The selection is now flipped.

If the marching ants were around the person, they now target the background. If they were around the sky, they now target the land, buildings, trees, and everything else.

The keyboard shortcut

Menus are fine. Shortcuts are faster. And they make you feel like a wizard.

• Windows: Press Ctrl + Shift + I.
• Mac: Press Cmd + Shift + I.

Make sure a pixel selection is active first. If nothing is selected, Affinity has nothing to invert. That is like asking a sandwich to turn inside out before you make it.

A quick example in Affinity Photo

Let’s say you have a portrait. The person looks great. The background looks like a messy laundry adventure.

You want to blur the background, but not the person.

Do this:

1. Use the Selection Brush Tool.
2. Paint over the person.
3. Refine the edge if needed.
4. Go to Select > Invert Pixel Selection.
5. Now the background is selected.
6. Apply a blur from Filters > Blur.

Nice. The person stays sharp. The background gets soft. Your photo now looks more polished.

This is one of the best reasons to invert selections. Often, it is easier to select the subject first. Then you flip the selection and edit the rest.

How to invert a selection in Affinity Designer

Affinity Designer works a little differently. It is mainly a vector design app. That means you often work with shapes, curves, text, and layers instead of photo pixels.

Still, you can invert selections in Designer when working with pixel selections, especially in the Pixel Persona.

Here is the basic process:

1. Open your document in Affinity Designer.
2. Switch to the Pixel Persona if you are working with raster pixels.
3. Use a pixel selection tool, such as a selection brush or marquee tool.
4. Create your selection.
5. Go to Select > Invert Pixel Selection.

You can also try the same shortcut:

• Windows: Ctrl + Shift + I
• Mac: Cmd + Shift + I

If you are working with vector objects, the idea is different. You are not making a pixel selection. You are selecting objects or layers. In that case, you may need to select other objects manually, use the Layers panel, or use options like Select Same to grab matching shapes.

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Pixel selections versus object selections

This part trips people up. So let’s keep it very simple.

Pixel selection: You select part of an image. Like a face, sky, chair, or shadow. You see marching ants. This is common in Affinity Photo and Pixel Persona.

Object selection: You select a whole shape, layer, text box, curve, or group. This is common in Affinity Designer. You see bounding boxes and handles.

When people say “invert a selection,” they usually mean a pixel selection. That is why the menu item says Invert Pixel Selection.

If you are trying to invert selected vector objects, do not be surprised if it does not behave like a photo selection. Designer is thinking, “These are objects, not pixels.” Fair enough, Designer. Fair enough.

Why invert selections at all?

Inverting a selection is useful because the easy thing to select is not always the thing you want to edit.

Here are common examples:

• Select a person, then invert to edit the background.
• Select the sky, then invert to brighten the landscape.
• Select a product, then invert to remove the background.
• Select a logo area, then invert to add texture around it.
• Select a window, then invert to darken the wall.

It is a time saver. It also helps you avoid messy edges. If your subject is easy to select, choose it first. Then flip the selection. Boom. Very tidy.

Using inverted selections with masks

Masks are where inverted selections become extra powerful. A mask hides or shows parts of a layer. It is like a little trapdoor for pixels.

In Affinity Photo, you can:

1. Select your subject.
2. Invert the selection.
3. Add a mask.
4. Hide or adjust the selected area.

This is great for background removal. It is also great for color effects. For example, you can keep a red dress bright and make the background black and white.

That sounds fancy. But it is just selection, invert, adjust. The computer does the drama.

Common problems and quick fixes

Problem: The invert option is gray or does nothing.

Fix: Make a pixel selection first. Look for the marching ants.

Problem: The wrong area changed.

Fix: You may have inverted one time too many. Use Undo, then try again.

Problem: The edges look rough.

Fix: Use Refine, Feather, or a softer brush.

Problem: You are in Affinity Designer and cannot invert vector objects like pixels.

Fix: Switch to Pixel Persona for pixel selections, or manage vector objects from the Layers panel.

Best tips for clean inverted selections

• Zoom in before selecting tricky edges.
• Use a smaller brush near hair, leaves, or fur.
• Use Add and Subtract selection modes.
• Refine the edge before applying big edits.
• Save your selection if the edit is important.

Do not rush the edge work. Bad edges can make a great edit look like a sticker from 2004. Unless that is your style. Then carry on, brave artist.

Final thoughts

Inverting a selection in Affinity Photo and Affinity Designer is a tiny command with huge power. In Affinity Photo, use Select > Invert Pixel Selection or press Ctrl + Shift + I on Windows and Cmd + Shift + I on Mac. In Affinity Designer, use it for pixel selections in the Pixel Persona.

The trick is to remember the flip. Select what is easy. Invert when needed. Then edit the part you actually want. It is fast, clean, and a little bit magical.