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import os

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import win32com.client

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ppttoPDF = 32

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for root, dirs, files in os.walk(r'your directory here'):

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    for f in files:

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•

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        if f.endswith(".pptx"):

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            try:

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                print(f)

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                in_file=os.path.join(root,f)

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                powerpoint = win32com.client.Dispatch("Powerpoint.Application")

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                deck = powerpoint.Presentations.Open(in_file)

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                deck.SaveAs(os.path.join(root,f[:-5]), ppttoPDF) # formatType = 32 for ppt to pdf

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                deck.Close()

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                powerpoint.Quit()

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                print('done')

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                os.remove(os.path.join(root,f))

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                pass

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            except:

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                print('could not open')

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                # os.remove(os.path.join(root,f))

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        elif f.endswith(".ppt"):

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            try:

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                print(f)

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                in_file=os.path.join(root,f)

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                powerpoint = win32com.client.Dispatch("Powerpoint.Application")

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                deck = powerpoint.Presentations.Open(in_file)

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                deck.SaveAs(os.path.join(root,f[:-4]), ppttoPDF) # formatType = 32 for ppt to pdf

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                deck.Close()

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                powerpoint.Quit()

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                print('done')

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                os.remove(os.path.join(root,f))

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                pass

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            except:

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                print('could not open')

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                # os.remove(os.path.join(root,f))

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        else:

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            pass

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