Hi, 

I'm very new to using AutoCad, and I am currently using it to complete an assessment at school. 

I have been given a DWG file, where we have to add a design into a pre-existing venue. I made a set design in a layer and went to the layout that was already in the file to export it as a PDF, however when I exported it, it seemed that the layers that I made had all duplicated and created an offset of the entire layer, but all other layers remained as they looked like in the model. I don't know how to remove the duplicate from the layers I've created, and can't seem to find any information online. Any help would be greatly appreciated.