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import os
import shutil
import sys

# For .docx conversion
try:
    from docx2pdf import convert as docx_convert
except ImportError:
    print("Error: docx2pdf not installed. Run 'pip install docx2pdf' and try again.")
    sys.exit(1)

# For .pptx conversion (requires PowerPoint installed)
try:
    import win32com.client
except ImportError:
    print("Error: pywin32 not installed. Run 'pip install pywin32' and try again.")
    sys.exit(1)

def main(input_dir, output_dir):
    if not os.path.isdir(input_dir):
        print(f"Error: {input_dir} is not a directory.")
        sys.exit(1)
    
    os.makedirs(output_dir, exist_ok=True)
    
    for root, dirs, files in os.walk(input_dir):
        rel_dir = os.path.relpath(root, input_dir)
        target_subdir = os.path.join(output_dir, rel_dir)
        os.makedirs(target_subdir, exist_ok=True)
        
        for file in files:
            filepath = os.path.join(root, file)
            base, ext = os.path.splitext(file)
            output_pdf = os.path.join(target_subdir, base + '.pdf')
            
            if ext.lower() == '.docx':
                docx_convert(filepath, output_pdf)
            elif ext.lower() == '.pptx':
                try:
                    ppt_app = win32com.client.Dispatch("PowerPoint.Application")
                    pres = ppt_app.Presentations.Open(os.path.abspath(filepath), WithWindow=False)
                    pres.SaveAs(output_pdf, 32)  # 32 = ppSaveAsPDF
                    pres.Close()
                    ppt_app.Quit()
                except Exception as e:
                    print(f"Failed to convert {filepath}: {e}. PowerPoint installed?")
            elif ext.lower() == '.pdf':
                shutil.copy(filepath, output_pdf)



main("OrigFolder","ConvertedFiles")