export_toPDF

import arcpy
from arcpy import da
import os

mxd = arcpy.mapping.MapDocument(r"")
fileLocation =(r"")

df = arcpy.mapping.ListDataFrames(mxd, "zzz")[0]

print 'Set Variables'
for lyr in arcpy.mapping.ListLayers(mxd, "", df):
    lyr.visible = True
    filename = (str(lyr))
    arcpy.mapping.ExportToPDF(mxd, (fileLocation + os.sep + filename))
    lyr.visible = False

print 'Finished'