This filter changes the message for PDF download links generated by Caldera Forms Pro. By default the message is “Download Form Entry As PDF”.
Please note, the default is passed through a WordPress translation function, and uses the “caldera-forms-pro” text domain, so WPML or other translation plugins should be able to translate this message.
Translate Caldera Forms Pro PDF Download Message
Change Caldera Forms Pro PDF Download Message
Where Does This Code Go?
When using WordPress hooks to customize Caldera Forms or other plugins you should not modify the plugin files, or you will lose your changes when you update the plugin. Instead you should create a small plugin to hold the custom code. It's easy, learn how here.
Technically you can add the custom code to your theme's functions.php, but then you will not be able to change your theme and keep these customizations.