mxd = arcpy.mapping.MapDocument("CURRENT")
for pageNum in range(1, mxd.dataDrivenPages.pageCount + 1):
  mxd.dataDrivenPages.currentPageID = pageNum
  arcpy.mapping.ExportToPNG(mxd, r"K:\Apb\Cartografia\GU_Orto_H_" + str(pageNum) + ".png")
del mxd


mxd = arcpy.mapping.MapDocument("CURRENT")
for pageNum in range(1, mxd.dataDrivenPages.pageCount + 1):
   mxd.dataDrivenPages.currentPageID = pageNum
   df = arcpy.mapping.ListDataFrames(mxd, "Callejero")[0]
   PageName = mxd.dataDrivenPages.pageRow.Text
   arcpy.mapping.ExportToPNG(map_document=mxd, out_png=r"K:\Apb\Cartografia\GU_Orto_H_" + str(PageName) + ".png", data_frame=df, df_export_width=9450, df_export_height=9450, resolution=300, world_file=True, color_mode="24-BIT_TRUE_COLOR")
del mxd