Sometimes we copy objects from ZWCAD drawing to another ZWCAD drawings or from other CAD products to ZWCAD, the size of dimension (arrow, text size) will be changed.
In fact, this is not a problem of ZWCAD. As I test on both AutoCAD and ZWCAD, the effect is the same. The reason of this issue is on both two drawings, the name of style is the same. From example, the style of dimension is "ISO-25" and "standard", are default dimension style that both AutoCAD and ZWCAD have this style
However, to solve the problem of this customer, we can easily modify the style name to other one (the idea is do not make the same name of dimension style), for example, we can modify the name of dimension to "test" on AutoCAD. Then copy all objects to ZWCAD, then the size of dimension are not changing.