Photopea Change Canvas Size: How to Expand the Canvas Around a Logo

The short answer

To change the canvas size in Photopea, open Image > Canvas Size (keyboard shortcut Alt+Ctrl+C on Windows, Option+Cmd+C on Mac). Enter a new width and height, choose an anchor point to control which side grows, and confirm. The canvas gets bigger or smaller, but your logo artwork keeps its size. Only the space around it changes.

Here, the canvas is the document's working area, meaning the boundary that sets the dimensions of whatever you export. Changing the canvas is different from scaling the logo. Image > Image Size resamples the whole document, which means it recalculates pixels so the artwork itself grows or shrinks. Canvas Size adds or removes space at the edges and leaves the artwork alone. If your goal is padding or clear space around a mark, Canvas Size is the right command.

Step by step: increasing canvas size in Photopea

• 1. Open the logo file in Photopea and save a copy first, so the original stays untouched.
• 2. Go to Image > Canvas Size.
• 3. Choose the unit you want to work in, such as pixels or percent.
• 4. To add a fixed amount of space instead of typing the final total, turn on the Relative option and enter only the extra width and height.
• 5. Click a square in the anchor grid. The center square expands the canvas equally on all sides. An edge or corner square pins the artwork to that side, so the new space appears on the opposite sides.
• 6. Click OK to apply the change.

In this dialog, Relative means the numbers you type are added to the current dimensions, not used as the final size. The anchor is the fixed reference point that the existing content stays attached to while the canvas grows or shrinks.

Alternative: drag the canvas larger with the Crop tool

The Crop tool can also enlarge the canvas. Drag a crop handle out past the current document edge and then commit the crop. This works well for quick visual adjustments. Canvas Size is more reliable when you need exact, matching amounts of space on each side, which is usually the case with logo files.

Checking the result

• Open Image > Canvas Size again and confirm the dimensions match what you intended.
• Check that the artwork is where you expected relative to the new edges. If the anchor was wrong, undo and redo the step with a different anchor square.
• Look at the new area. Depending on the layer setup, it may be transparent or filled with a background color. If the logo needs a transparent background, make sure the bottom layer is not a solid fill.
• Make sure the artwork was not resampled. If the logo looks softer or has changed size, Image Size was probably used by mistake.

What this means for vector logo artwork

Vector artwork is built from mathematically defined paths instead of a grid of pixels, so it can scale without losing sharpness. Photopea mainly edits pixel-based images, although it can work with shape layers and open some vector formats. Enlarging the canvas does not turn raster content into vector content, and it does not make pixel-based edges any sharper. A file's extension also does not prove that it contains true vector paths or that it can be fully edited, so check the layers before you rely on that.

If the expanded file will be used as a production master, re-export it in the format the destination requires and inspect the exported dimensions and background. Adding canvas space is a layout change. It does not settle whether you have permission to modify or reuse a particular logo.

Gaps in this guide

No version-specific documentation, screenshots or measurements were provided for this article. Menu labels, shortcuts and dialog options are described as they generally appear in Photopea and may change between updates. No recommended clear-space values are given, because those depend on the brand guidelines for each logo.