Preview your LinkedIn post. See the fold before your readers do.

What a LinkedIn post preview shows that the composer does not

LinkedIn's composer shows your draft in an editing box. The feed shows something else: your photo, name and headline on top, then a post that collapses after a few lines behind a "…more" link (most people still call it "see more"). A LinkedIn post preview puts your draft in that frame, so you read it the way a stranger scrolling past will. That is where you notice an opener that only makes sense with the second line, a blank line that wastes half the visible space, or a hook that gets cut mid-sentence on a phone.

Where LinkedIn cuts a post, and why the numbers differ

LinkedIn does not publish the cutoff, so every number you see is a measurement. AuthoredUp puts it at roughly 210 characters on desktop and 140 on mobile. Other tools count lines instead: one preview maker shows 5 lines for a text-only post on desktop, 3 when an image, video or document is attached, and 2 on mobile. A test published in May 2026 landed anywhere between 120 and 210 characters, depending on the post.

They disagree because the cut follows the layout, not a counter. Line breaks, emoji, screen width and attached media all move it, and a blank line uses up a whole line of the space you get. The safe rule: fit the hook inside the mobile fold, about 140 characters, and break the line on purpose before it.

How images and links change the preview

• Photos. A post can hold up to 20 images. Each one shows between 3:1 and 4:5 (width to height). Anything taller is centered and cropped, and in a multi-photo post the first image sets the layout.

• Links. Since 2024, a link in an organic post shows as a small thumbnail beside the page title instead of the full-width image it used to get. Sponsored posts keep the big card. The card is built from the page's Open Graph tags, which the LinkedIn post inspector checks.

• Length. Posts can run to 3,000 characters. The LinkedIn character counter tracks it as you go.

A checklist to preview a LinkedIn post before posting

• Read the mobile view first. It has the shorter fold, so if the hook works there it works on desktop too.

• Make the first line stand alone. If it needs the second line to make sense, swap them.

• Spend blank lines carefully above the fold. Every empty line there is a line of hook you gave away.

• Check styled text. Bold from the LinkedIn text formatter is Unicode, so make sure it reads the way you meant in the preview.

• Keep hashtags and mentions low. Above the fold they take the room your point needs.

The fold is a content problem, not a layout one

A preview tells you where the cut falls. It cannot tell you whether the line above it is worth a tap. That part is about the content, and it is what VoiceMoat works on. audenAI, the brain inside VoiceMoat, learns from your own posts and drafts LinkedIn posts in your voice, and Studio's reach notes flag an opener that runs past the fold. Start with a few openers from the LinkedIn hook generator, or see how Studio drafts the whole post.