Can I attach file to be sent with the emailed form?

Hello,

Am I able to attach a link, document or video to be sent with the emailed form?

You can use File upload element in your form to upload a file which will be emailed with the form.

You can refer to this guide: https://www.jotform.com/help/332-How-to-Create-File-Upload-Forms

You have to mention size limit for video files.

Related guides:
Changing-the-upload-size-limit
How-to-Change-the-Allowed-File-Types-in-the-Upload-Field

Let us know if you have any further query.