Gravity PDF 3.7.6 allows PDFs to be attached to any post-submission notification events such as Payment Complete, Payment Refund, Payment Failed and Payment Pending. It also fixes up a PHP 7 compatibility issue that was missed in the 3.7.5 release.
The Gravity PDF 3.7.5 update saw full support for PHP 7, but we missed one tweak related to displaying PNG images. This gets corrected in this release. We also found that PDFs were only ever attached to Gravity Forms Form is Submitted notification and additional event types like Payment Complete or Subscription Created where never processed correctly. This oversight was also fixed.
We recommend all users upgrade as soon as possible, either by using one-click updates in your admin area or by downloading and installing it manually.