Problem
To be competitive with enterprise form builders, the Webform module for Drupal 8 needs to support the downloading and exporting of submissions as PDF documents, as well as sending PDF documents as email attachments.
The Entity Print module does a great job of generating PDF documents from entities and fields, but webform submissions don't use Field API. This limitation has required site builders and developers to create custom Entity Print integrations for the Webform module.
Solution
The Webform module now includes a Webform Entity Print integration module, which handles downloading, exporting, and attaching generated PDF documents. Additionally, the Webform module allows the generated PDF document's header, footer, and CSS to be customized.
Demo
When enabled, Webform Entity Print module automatically displays a "Download PDF" link below all submissions and adds a download "PDF documents" option to the available export formats. Attaching PDF documents to emails requires that you add an "Attachment PDF" element to a webform and then configure email handlers to "Include files as attachments."
The below screencast and presentation walks through customizing the PDF link and template, exporting PDF documents, and attaching PDFs to emails.
Scratching my own itch
Adding PDF support was not a sponsored feature. I wanted the Webform module to support this advanced feature; so I created it. I was scratching my own itch.
The bigger itch/the challenge that I am always scratching at is:
Competing with other form builders
Competitive enterprise, and also Open Source form builders, tend to put this PDF functionality behind a paywall. For example, WordPress's Gravity Form (