I'll help you create a web application using Google Apps Script that can take a Scribd link, redirect to the embedded version, and then allow users to download a PDF version of the page.

How It Works

This application allows you to:

1. Enter a Scribd document URL
2. The app extracts the document ID and creates an embed URL
3. The document is displayed in an iframe

4. When you click "Download as PDF", the app:

   • Takes a screenshot of the iframe content using html2canvas
   • Converts the screenshot to a PDF using jsPDF
   • Downloads the PDF to your device

Implementation Notes

1. The app uses Next.js with the App Router and React for the frontend
2. It uses html2canvas for capturing the page content and jsPDF for PDF generation
3. The UI is built with shadcn/ui components for a clean, modern look
4. The app handles errors gracefully with proper validation and error messages

Limitations

Please note that this approach has some limitations:

1. Due to CORS restrictions, the iframe content might not be fully accessible for screenshot capture in some cases
2. The quality of the PDF depends on the resolution of your screen
3. This method only captures what's visible in the iframe, so very long documents might require scrolling and multiple captures

If you need more advanced functionality, you might need to consider server-side solutions or browser extensions.

I'll create a Google Apps Script solution for you with the two required files: HTML and GS. This will allow users to enter a Scribd link, view the embedded document, and download it as a PDF.

Code.gs File

Index.html File

How to Deploy This in Google Apps Script

1. Go to Google Apps Script
2. Create a new project

3. Create two files:

   • Code.gs - Copy and paste the GS code above
   • Index.html - Copy and paste the HTML code above
4. Save the project (give it a name like "Scribd to PDF Converter")
5. Click on "Deploy" > "New deployment"
6. Select "Web app" as the deployment type

7. Configure the settings:

   • Description: "Scribd to PDF Converter"
   • Execute as: "Me"
   • Who has access: "Anyone" (or your preferred access level)
8. Click "Deploy"
9. Copy the web app URL that appears and share it with your users

How It Works

1. Users enter a Scribd document URL
2. The app extracts the document ID and creates an embed URL
3. The document is displayed in an iframe

4. When users click "Download as PDF", the app:

   • Takes a screenshot of the iframe content using html2canvas
   • Converts the screenshot to a PDF using jsPDF
   • Downloads the PDF to the user's device

This solution is completely built with Google Apps Script and will work as a standalone web application.