Hello @bhumika18s & @Sanjeeb2022
You can save dashboards/reports as JSON to an S3 bucket for version control (GitHub - aws-samples/amazon-quicksight-assets-as-code-sample).
If you simply want to pull the PDF every month and save them somewhere (not versioning) you could use the snapshot APIs:
You can then add these to folders in Quick Sight:
Let me know if this is what you were looking for!