Can't fill in Acrobat created PDF in Google Forms

First, let's start creating a project in Google Apps Script:

• Go to Google Apps Script.
• Click on New Project.

Next, add the below script (Script the already added command lines): 

function doPost(e) {
  // Get the form data sent from the PDF
  var formData = e.parameter.formData; // The form data is sent as a string (can be JSON or plain text)
  
  // Define the folder in Google Drive where the form data will be saved
  var folder = DriveApp.getFolderById('your-folder-id'); // Replace with your folder ID
  
  // Create a new file in Google Drive
  var file = folder.createFile('form_submission.pdf', formData, MimeType.PDF);
  
  // Return a success message
  return ContentService.createTextOutput("Form saved to Google Drive.");
}

Once this is done, we will set up the Script.

• Script on Deploy > Manage Deployments > New Deployment.
• Choose the Web app and set access to Anyone or Anyone with the link.
• Click Deploy and copy the URL generated (looks like https://script.google.com/macros/s/your-script-id/exec).

 Next would be to add a submit button to your PDF form.

• Then: Select the button tool from the toolbar and create a button on your form;

• Right-click to choose properties;

• In the Actions tab, click on Run A Javascript, and click Add.

• Now, copy the below code:

 // Replace with your Google Apps Script URL
var submitUrl = "https://script.google.com/macros/s/your-script-id/exec"; 

// Collect form data from a specific field (replace "FormDataField" with your actual field name)
var formData = this.getField("FormDataField").value;

// Set up the POST request to send the data
var xhr = new XMLHttpRequest();
xhr.open("POST", submitUrl, true);
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

// Prepare data for submission
var params = "formData=" + encodeURIComponent(formData);

// Send the data to the Google Apps Script
xhr.send(params);

// Handle the server's response
xhr.onload = function() {
  if (xhr.status == 200) {
    app.alert("Your form has been successfully saved to Google Drive!");
  } else {
    app.alert("Oops! Something went wrong. Please try again.");
  }
};

P.S: 

• Make sure your Apps Script is set to allow access to anyone who submits the form (even if they’re not signed in to Google)

• The script assumes you're sending simple form field data.

• For security and compatibility reasons, Google PDF Viewer does not execute JavaScript embedded in PDF files. So, you might need to use the Acrobat Cloud viewer to fill in the form.

This worked for me on the Acrobat desktop app. Please try it in your working environment and let me know if it helps.

-Souvik