KG-Chart for Cross Stitch User's Manual

To resize the chart, use "Chart" - "Change Size" menu item.
Following dialog box appears.

(1) The size information
(2) Current size (Black)
(3) Current used area and the difference from chart size (green)
(4) The difference between current size and the new size
(5) Anchors to be used to drag to resize: You can use those black boxes to drag to resize the chart.
(6) Current size
(7) Current used area and the difference from chart size
(8) The difference between current size and the new size. The text boxes are for entering the margins.
(9) To specify the new size by width and height.
(10) To fit the chart to the drawing area. This automatically detect the painted area and fit the chart to that.

So, you can use following method to specify the new size:
A. Dragging the black boxes(5)
B. Entering values in (8) or (9)