Almost every social post needs an image. Add it on the channel you are writing, and choose whether to use the same one everywhere when prompted.
Shapes that work
| Shape | Suits |
|---|---|
| Square | The safest all-rounder. Works acceptably on every platform. |
| Portrait | Instagram and anything read on a phone — it fills more of the screen. |
| Landscape | LinkedIn, Facebook link posts, anything read on a desktop. |
If you are producing one asset for everywhere, make it square and keep anything important away from the edges — different platforms crop differently.
Video
ASPECT RATIO IS THE USUAL REASON A VIDEO FAILS
Keep videos short, and assume they will be watched with the sound off. Anything that only works with audio should carry captions.
Before you schedule
Look at the preview for each channel. It shows the crop that platform will apply, which is where you find out that your text sits exactly where Instagram cuts the image.