Adding or changing a thumbnail for a video post is fairly easy. You can choose to pick a thumbnail from the ones that are automatically generated or upload a custom thumbnail.

You can only upload a custom thumbnail for Facebook Pages & Groups, Instagram Reels, LinkedIn, Pinterest, and YouTube videos (not shorts).
For Instagram regular videos and Telegram, you can only choose from one of the 10 existing/generated thumbnails.

To add/change the thumbnail:

Go to Create.
Design the video post to your liking.
Click on the little camera icon underneath the thumbnail.



Choose the thumbnail you wish to set/change. You can also choose to create a thumbnail on the spot with Canva or VistaCreate (Crello).
Once you finish have uploaded the custom thumbnail, you will see it applied on Publer.
Following the same steps, you can change the thumbnails for other posts/social accounts, i.e. Instagram Reels.



You can always check the live preview on the right to make sure the it will be posted correctly to the social media, and finally schedule away.

To choose a thumbnail for Instagram/Telegram regular videos:

Go to Create.
Design the video post to your liking.
Use the arrows underneath the thumbnail to choose the one you want to use.



You can always check the live preview on the right to make sure the it will be posted correctly to the social media, and finally schedule away.

For Instagram regular videos and Telegram, you can only select 1 out of the 10 generated frames as a thumbnail, you cannot upload a custom thumbnail.

Updated on: 27/03/2023