I am doing electrical overview drawings in the model space, with several paperspace tabs. The drawing also contains many blocks downloaded from the manufacturer's website. The problem I am having is that the file size is huge. One file can be 16,000kb...this creates problems when trying to email drawings or create PDF's. I have already tried the PURGE function and it only reduces the file size by a couple hundred kb. How can I reduce the file size of my drawings?