Does Scratch have a size limit?

Short answer

Scratch does not have a hard size limit for the stage, but the stage itself is always 480 by 360 pixels. You can upload images larger than that, but they will be scaled to fit the stage.

In the Scratch editor, the stage is fixed at 480 by 360 pixels. You can upload a backdrop image that is larger, such as 1920 by 1080 pixels, and Scratch will automatically shrink it to fit the stage. This can be useful if you want a high-resolution image that stays sharp when the project is shown on a big screen.

However, there is a practical limit on file size. Scratch may reject images that are extremely large, such as over several megabytes, because it can slow down the project. It is best to keep your backdrop image under a few megabytes and use common formats like PNG, JPEG, or SVG. SVG files are vector-based and can scale without losing quality, which is ideal for simple designs.

For a wedding, if you are using Scratch as part of your entertainment, such as a digital backdrop or an interactive game, remember that the stage will always be that fixed size. You can design your own artwork at a higher resolution, but the visible area will still be 480 by 360 pixels. If you need a larger physical backdrop, that is a separate matter and depends on your printing or construction choices.