Image Guidelines for Social Media Posts

  • Updated
The social media posts (including images) can be created through the LinkedIn and X (Twitter) connectors within the Social Publish feature. You can also share your Act-On assets directly to 

Below are some guidelines for the use of images when posting on Facebook, LinkedIn or Twitter:


  • Images should be 1200 x 630 pixels.
  • The minimum image size is 600 x 315 pixels.
  • The avatar should be 180 x 180 pixels.


  • Large images cannot be shared outside of the LinkedIn platform and any image asset shared must be associated with a shared URL.
  • You may change the Thumbnail image after selecting a URL to share.
  • Thumbnails should be 400 x 400 pixels.

X (Twitter)

  • The minimum image size is 600 x 335 pixels. Larger images (e.g. 1152 x 648 and up) will look nicer when users click to expand them.
  • Recommended aspect ratio is 16:9, but anything between 2:1 and 1:1 will work. If the height exceeds the width of the image, it is cropped at a 1:1 ratio.
  • The avatar should be 400 x 400 pixels.

Was this article helpful?

Have more questions? Submit a request