Square-Dot is a Patented method of marking a 2D Barcode developed by Columbia Marking Tools. The method implements an alternative means of marking the 2D code by drawing a square for each of the elements within the 2D code instead of the impacted dot done by all standard marking companies.  This method can be used in the I-Mark software by setting the property field for a Data Matrix Code of Square-Dot to True and setting the Square-Dot Percentage to a value which would make the greatest effect you are requiring.


This can be found when you select a Data Matrix Code within your Layout.


After you set your select this option for your Data Matrix Code you will find that graphic in your layout which represents it will have changed.  

Shown below is an example of the Square-Dot Option and a comparison between a standard 2D and one with Square-Dot applied.