Google Apps Script or Google Web App to make PDF out of HTML iframes

I am seeking help to build an automation that could be manually triggered and could run on a scheduled basis that will take a snapshot of my Looker Studio dashboard with custom control filters applied then it will group the snapshots appropriately into individual files. The files will then be distributed into the appropriate stakeholders’ folders. I need this done using Google Apps Script

For clarity: my main challenge, and the solution I am looking for:

- Automatically create multiple PDF documents or update a single Google Slide document from an iFrame
- Using Google Apps Script and/or Google Web App
- Hosting service: Google Drive

Restrictions:

- I am unable to use other third-party Apps / services
- Other than Apps Script / GWS
- I cannot change the visualization tool and storage service

Solution:

- I am not looking for you to implement the solution for me
- I require simply clear and detailed instructions
- I will implement myself

Suggested payment structure for your proposal:

- 1/3 for high-level solution overview (you let me know you have a working solution)
- 1/3 for low-level solution documentation (you document your solution in a way that will allow me to implement it)
- 1/3 after I successfully implement the solution