Google Forms with file upload question requires users to login to view and submit the form. You cannot use the Google Forms' iframe embed code to embed google forms with file upload. If you would like to embed this form, you can use the Formfacade - File upload addon. Open your form in google forms > click on the add icon > click Formfacade - File upload > click Configure form > click Yes to convert Google Drive upload into HTML upload > click Proceed > Formfacade Edit page will open in a new tab > click Share > In the Share page, click Embed > select your website platform, click Next and follow the prompts to embed the form on your website. Formfacade - File upload addon https://workspace.google.com/marketplace/app/formfacade_file_upload/146202960515 Formfacade - File upload pricing https://formfacade.com/file-upload/pricing.html