WPDM – Form Lock Add-on helps you to lock your download with a form, so that user need to fill and submit that form to get access to download. As sometimes you may need to collect data from visitors before they get the download. This add-on will link WordPress Download Manager Downloads with the forms built using popular WordPress Form Builder Plugins.
WPDM – Form Lock add-on support following WordPress Form Builder / Contact Form Plugins:
And if you missing any form plugin that you are using which is not listed here, let us know.