LinkedIn - dopost

Platform Limits

Feature	Post
Caption	Max 3,000 characters
Images	✅ (up to 9 images)
Image size	5MB max
Videos	✅ (1 video)
Video length	3 seconds - 15 minutes (900s)
Video size	5GB max
Video formats	MP4 (H.264 codec, AAC audio)
Image formats	JPG, PNG, GIF
Image resolution	Min 552x276, Max 1920x1080
Video resolution	Min 256x144, Recommended 1920x1080
Aspect ratio	Optimal for professional content
Carousel	✅ (up to 9 images)
Frame rate	24-60 fps
Video bitrate	Min 192kbps, Recommended 1024kbps

LinkedIn Mentions

To mention someone on LinkedIn in Dopost, type “@” in the caption editor and start writing the name of the person or company. Type at least 3 characters to load results. Click the result you want and it will be inserted as a bold mention. You can copy this mention and paste it into any of your other LinkedIn accounts, and it will still work.

If you’re searching for a company or school and don’t see it, try using the vanity slug from the LinkedIn URL.
Example:
https://www.linkedin.com/school/harvard-university/ → search “harvard-university” instead of “Harvard”.

Searching for people only returns followers of your organization. This is a LinkedIn API limitation.

Account limitations:

Personal accounts can only mention companies, schools, universities, etc.
Organization accounts can mention their followers (people) as well as companies, schools, universities, etc.

Mentions can be cross-shared between accounts. For example, you can copy a person mention generated from an organization account and paste it into a personal account’s caption.