Have moved back to AC 15 because PDF files brought into worksheets seem to grow over 200MB; took same information, opened file in 14, brought in pdf's and they work as they should.
Cut/pasted other information and rebuilt the file.
The renovation tool is a pain to use, makes the simplest file difficult because of all the settings it requires to get the output that AC 14 just does.
Another file that grew to 272MB in 15, however, when opened in 14 and brought in site plan PDF opened just fine and is 36 MB.
THERE IS A PROBLEM SOMEWHERE I do not have the time to figure it out.