Inkscape
How to align object in inkscape?
To align something to the center or side of a page, select the object or group and then choose Page from the Relative to: list in the Align and Distribute dialog ( Shift + Ctrl + A ).
To align something to the center or side of a page, select the object or group and then choose Page from the Relative to: list in the Align and Distribute dialog ( Shift + Ctrl + A ).