Here's an example of how you can deploy an AWS Lambda function using CloudFormation. This Lambda function will be triggered when an object is created in a specified S3 bucket, and it will convert all uploaded files to PDF format: 1. **Template Preparation:** - Create a new directory on your local machine where you will store the template file and Lambda function code. - Write a Python code for the Lambda function that converts files to PDF. Here's a simple example using the `python-pdf` library: ```python import boto3 import pdfkit s3 = boto3.client('s3') def convert_to_pdf(event, context): # Extract file name and bucket name from the event bucket_name = event['Records'][0]['s3']['bucket']['name'] file_name = event['Records'][0]['s3']['object']['key'] # Download the file from S3 response = s3.get_object(Bucket=bucket_name, Key=file_name) original_file_data = response['Body'].read() # Convert the file to PDF pdf_file = pdfkit.from_string(original_file_data) pdf_filename = file_name + '.pdf' # Upload the PDF back to S3 upload_response = s3.put_object( Body=pdf_file, Bucket=