CGM to PNG in Python

Am trying various method to write out a code in Python to convert CGM image to PNG/JPEG, but could not find any without the use of opensource softwares.

as per this https://products.aspose.com/pdf/python-net/conversion/cgm-to-jpeg/

    def convert_CGM_to_JPEG(self, infile, outfile):

        path_infile = self.dataDir + infile
        path_outfile = self.dataDir + outfile

        (w, h) = self.helper.get_image_size(path_infile)

        # Initialize new Document

        document = Document()
        page = document.Pages.Add()
        image = Image()
        image.File = path_infile

        # Set page dimensions

        page.PageInfo.Height = h
        page.PageInfo.Width = w
        page.PageInfo.Margin.Bottom = 0
        page.PageInfo.Margin.Top = 0
        page.PageInfo.Margin.Right = 0
        page.PageInfo.Margin.Left = 0
        page.Paragraphs.Add(image)

        # Create Resolution object

        resolution = Resolution(300)

        device = JpegDevice(resolution)

        pageCount = 1

        while pageCount <= document.Pages.Count:
            imageStream = FileStream(self.dataDir + outfile + str(pageCount) + "_out.jpeg" , FileMode.Create)

            # Convert a particular page and save the image to stream

            device.Process(document.Pages[pageCount], imageStream)

            # Close stream

            imageStream.Close()
            pageCount = pageCount + 1

        print(infile + " converted into " + outfile)
        

Here in above code many thing are still undefined like Document, Helper function, Resolution etc.

I cannot use softwares like ImageMagick, Uniconverter as my organization pc doesn’t involve installation of external softwares be it any open source.

Can you guys please help me out in this.

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