This grid tool will help you keep proportion of drawing object. We can draw a layer of grid on top of your image. Hope it helps.

Features:

1. Add grid on image.

2. There are 6 types of grids you can choose:
- Rectangle (Set rows & cols)
- Rectangle (Set row height & col width)
- Square (Set rows only)
- Square (Set cols only)
- Square (Set row height only)
- Square (Set col width only)

3. There are 6 paper sizes (A0, A1, A2, A3, A4, A5) with 2 unit types (cm, inch).

4. You can change line width (from 0.5 to 10).