To many people's surprise, they discover that they can not edit the request form and they find themselves scratching their head about how to fill it in. If you have only been given "View" permission, then you must make a copy of the document so you can edit it. By forcing you to make a copy of the document (giving you only "view" not "edit" permissions), the original document is maintained intact and other people cannot inadvertently change the form.
This is how you can make a copy of a view only document and then submit it by sharing your completed copy:
