import tenacity

First, ensure you have Flask and PyPDF2 installed. If not, you can install them using pip:

# Save the PDF in memory pdf_buffer = BytesIO() pdf_writer.write(pdf_buffer) pdf_buffer.seek(0)

for page_num in range(len(pdf_reader.pages)): pdf_writer.add_page(pdf_reader.pages[page_num])

finally: # Cleanup or restoration code can go here if needed pass

pip install Flask PyPDF2 Here's a simple example of a Flask application that allows PDF downloads:

# Example route to create and download a PDF @app.route('/download_pdf', methods=['GET']) def download_pdf(): try: # Create a PDF in memory pdf_writer = PdfWriter() pdf_reader = PdfReader('example.pdf') # Use an existing PDF

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