A very simple plugin which resize image canvas by multiplying current size. It's a shorthand for Image>Canvas Size...>x00%. For example image 50x70 with settings Width: 3 and Height: 2 would resize canvas to 150x140. Additionally guide between multipliers may be added, as shown on image.

Result

Image resized with settings Width: 3 and Height: 2 and Guides: Yes

Options

Width multipler:" "Height multipler "Add guide lines"

• Width multipler - multiply width of the canvas by given value
• Height multipler - multiply height of the canvas by given value
• Add guide lines - adds guide lines between multiplers (see image)