Is there any way to change dwg file AutoCAD to png format or pdf format using python.
I tried looking many documentation none of them answered my question
```
from __future__ import print_function
from os.path import join, dirname, abspath
from xlutils.copy import copy
import xlrd
import xlwt
from pyautocad import Autocad, APoint
import os
import win32com.client
from pyautocad import Autocad, APoint
from pyautocad.contrib.tables import Table
from comtypes import COMError
def props(cls):
return [i for i in cls.__dict__.keys() if i[:1] != '_']
# Create workbook
book = xlwt.Workbook()
ws = book.add_sheet("ExportedData")
book.save("Exported.xls")
# Open the workbook
xl_workbook = xlrd.open_workbook("Exported.xls")
sheet_names = xl_workbook.sheet_names()
xl_sheet = xl_workbook.sheet_by_name(sheet_names[0])
wb = copy(xl_workbook)
sheet = wb.get_sheet(0)
dwgfiles = filter(os.path.isfile, os.listdir(os.curdir))
cwd = os.path.abspath(os.path.curdir) # current working dir
print(cwd)
for f in dwgfiles:
print("++++++++++++++++++++++++++++++")
print("++++++++++++++++++++++++++++++")
print("++++++++++++++++++++++++++++++")
print("++++++++++++++++++++++++++++++")
print(f)
if f.endswith(".dwg"):
print("sdaasdas")
""" open Document"""
acad = Autocad()
print(cwd)
acad.app.Documents.open(cwd + "/" + f)
exportFile="new2.bmp"
num_cols = xl_sheet.ncols # Number of columns
idx = 1
acad = win32com.client.Dispatch("AutoCAD.Application")
doc = acad.ActiveDocument # Document object
print(dir(doc))
doc.Export('exportFile','bmp')
print("MODEL SPACE")
count=0
```
please help me to solve this?. the error I am getting is given below
**e_to_string_', '_username_', '_wrap_dispatch_']
Traceback (most recent call last):
File "auto1.py", line 63, in <module>
doc.Export(exportFile,"bmp")
File "<COMObject <unknown>>", line 3, in Export
pywintypes.com_error: (-2147352562, 'Invalid number of parameters.', None, None)**
