LinkedIn Ad Preview —
Live Sponsored Content Mockup & Character Limits

LinkedIn lets you type a great deal — the intro text accepts up to 3,000 characters — but what trips advertisers up is the fold. In the feed, your intro text is collapsed behind an inline "…more" at roughly 150 characters, and everything after it stays hidden unless the viewer expands it. Most never do. The simulator above shows that fold live, so you can guarantee your hook and value proposition land before "…more".

The headline is the bold line on the link card beneath your image. LinkedIn accepts up to 200 characters, but keep it under 70 so it never truncates on the card. The description accepts up to 300 characters and reads best under 100; it surfaces mainly on desktop and across the LinkedIn Audience Network, so treat it as supporting copy rather than a place for anything critical.

Most LinkedIn members scroll the feed on their phones, and mobile is less forgiving: the narrower column folds the intro text a little earlier, and the link-card description is dropped. Toggle the preview between Mobile and Desktop to confirm your ad reads cleanly on the small screen, where the majority of impressions happen.

Rewriting an ad after it has entered review wastes time and can reset its learning. Checking the fold in advance means your strongest copy is never buried behind "…more," your headline never clips, and your call to action stays visible. Because PostTruncate runs entirely in your browser, nothing you paste is uploaded or stored — type your draft, watch the fold in real time, and copy the final version straight into Campaign Manager.