AcroPlot does not directly work with AutoCAD LT because Autodesk removes the programming interface from LT that third party developers such as ourselves need to use to interface with the program. They also strictly forbid (through our contract with them) Autodesk Registered Developers such as ourselves from providing any functionality inside of AutoCAD LT.
Because of these limitations we have our own direct converter which does not require AutoCAD or LT to be installed on the computer. It does a pretty good job of converting most files but does have the following limitations.
It does not run directly inside of LT like AcroPlot would in regular AutoCAD. Since we do not have access to the AutoCAD LT application we do not know if the drawing has been saved or not.
It does not support all custom objects. It does support most Civil 3D and AEC objects but not all. It also does not support any 3rd party developer custom objects that you would have to install an object enabler into LT for.