# EXPORT SCREENs TO RASTERs
import arcpy, traceback, os, sys, time
from arcpy import env
env.overwriteOutput = True
outFolder=arcpy.GetParameterAsText(0)
env.workspace = outFolder
dpi=1200
tempRaster=outFolder+os.sep+"victim.png"

## ERROR HANDLING
def showPyMessage():
    arcpy.AddMessage(str(time.ctime()) + " - " + message)

try:
    mxd = arcpy.mapping.MapDocument("CURRENT")
    ddp = mxd.dataDrivenPages
    thePagesLayer = arcpy.mapping.ListLayers(mxd,ddp.indexLayer.name)[0]
#   GET RECTANGLES
    g=arcpy.Geometry()
    geometryList=arcpy.CopyFeatures_management(thePagesLayer,g)
#   EXPORT PAGES
    df = arcpy.mapping.ListDataFrames(mxd)[0]
    fld = ddp.pageNameField.name
    Page_Names=arcpy.da.TableToNumPyArray(thePagesLayer, fld)
    for pageID in range(1, ddp.pageCount+1):
        ddp.currentPageID = pageID
        arcpy.RefreshActiveView()
        time.sleep(3)
        arcpy.mapping.ExportToPNG(mxd,tempRaster,df,dpi,world_file=True)
        fName=outFolder+os.sep+Page_Names[pageID-1][0]+".png"
        anExtent=geometryList[pageID-1].extent
        envelope='%f %f %f %f' %(anExtent.XMin, anExtent.YMin, anExtent.XMax, anExtent.YMax,)
#   CLIP EXPORTED BY PAGE RECTANGLE
        arcpy.Clip_management (tempRaster, envelope,fName)
        arcpy.AddMessage('%s processed' %fName)
except:
    message = "n*** PYTHON ERRORS *** "; showPyMessage()
    message = "Python Traceback Info: " + traceback.format_tb(sys.exc_info()[2])[0]; showPyMessage()
    message = "Python Error Info: " +  str(sys.exc_type)+ ": " + str(sys.exc_value) + "n"; showPyMessage()