Step by step converting a PDF page to PNG using WinRT

pdf2png.txt

Python 3.7.8 (tags/v3.7.8:4b47a5b6ba, Jun 28 2020, 10:03:53) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import os, time
>>> PDF_FILENAME = input("Path to PDF: ")
>>> OUT_FILE = os.path.abspath(input("Path to output PNG: "))
>>>
>>> import winrt.windows.data.pdf as PDF
>>> from winrt.windows.storage import StorageFile
>>> op = StorageFile.get_file_from_path_async(PDF_FILENAME)
>>> time.sleep(0.5) # should really await, but this is easier
>>> in_file = op.get_results()
>>> in_file
<_winrt_Windows_Storage.StorageFile object at 0x00000222A4795D30>
>>> op = PDF.PdfDocument.load_from_file_async(in_file)
>>> time.sleep(0.5)
>>> pdf = op.get_results()
>>> pdf
<_winrt_Windows_Data_Pdf.PdfDocument object at 0x00000222A4795D90>
>>> pdf.page_count
10
>>> page = pdf.get_page(1)
>>> page
<_winrt_Windows_Data_Pdf.PdfPage object at 0x00000222A4795D70>
>>> page.size.width
816.0
>>> page.size.height
1056.0
>>>
>>> from winrt.windows.storage import FileAccessMode, StorageOpenOptions
>>> from winrt.windows.storage.streams import FileRandomAccessStream, FileOpenDisposition
>>> op = FileRandomAccessStream.open_async(OUT_FILE, FileAccessMode.READ_WRITE, StorageOpenOptions.NONE, FileOpenDisposition.OPEN_ALWAYS)
>>> time.sleep(0.5)
>>> stream = op.get_results()
>>>
>>> op = page.render_to_stream_async(stream)
>>> time.sleep(0.5)
>>> op.get_results()
>>> stream.close()
>>> page.close()
>>> os.startfile(OUT_FILE)

This page helped me a lot: https://github.com/microsoft/Windows-universal-samples/blob/master/Samples/PdfDocument/cs/Scenario1_Render.xaml.cs

Thanks a lot!