Change video canvas dimensions beyond standard ratios
A website banner, presentation layout or custom embed may need dimensions that do not match a social preset. This custom video canvas lets you plan that space by width and height. It adds room around the existing picture instead of stretching the subject to fill a different shape.
Expand one edge or add space around the whole video
Drag the left, right, top or bottom edge independently. That makes it possible to leave more room beside a product, above a person or around a tightly framed scene. The green outline marks the original frame; the orange outline defines the intended output canvas.
Learn how AI fills space beyond a video frameCustom canvas size is different from file size
Width and height describe the canvas in pixels. Megabytes describe the encoded file. Increasing canvas size does not compress the file or add detail to the source. Use this workspace to add canvas space around the complete picture.
Use presets when the destination has a fixed aspect ratio
If you already need 9:16, 16:9, 1:1 or 4:5, a ratio preset can be quicker. Use the custom canvas when you want independent control over each edge. Both workflows let you review a composition before deciding how the added space should be filled.
Choose a standard video aspect ratio