

This is the admin interface at the moment, you will find something similar
This plugin finds every GIF animation in your posts and replace it to a preview image. Doesn’t matter the GIF embedded from another website or use WordPress’s static thumbnail. It automatically generates the preview image from the first frame of the animation and save it to the post’s media directory with -gap.jpg suffix.
Posts show the pregenareted small size jpeg file first, your visitors don’t need to wait for download the huge animation. Play animation after they click on the image or after your whole page has downloaded. It depends on your setting:
There are additional settings:
nogap classDon’t worry, delete this plugin will remove all settings from your database. Generated preview images gonna stay there, you can use them everywhere until you delete them manually.
On GitHub:
https://github.com/SubZtep/gif-animation-preview