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LinkedIn post – crop the image and check the text

LinkedIn accepts ratios between 3:1 and 4:5 for post images at a minimum width of 1080 pixels. What decides the effect, though, is the text: in the feed it is truncated after a few lines with "…see more".

Format: LinkedIn Post (hook checker) · 1200 × 1200 pixels · aspect ratio Feed

LinkedIn post image size: 1200 × 1200 px – and the hook checker

A LinkedIn feed post is shown at 1200 × 1200 pixels for a square image, or 1200 × 628 for the wide variant. Which one you choose changes how much room the post takes in the timeline, and that decides whether the first line of your caption gets read at all. A square image takes more vertical space and therefore shows more of the caption before the cut; the wide variant leaves the caption to carry the attention on its own.

LinkedIn truncates captions after roughly 210 characters with a “see more” link – and that is the second half of this tool. It is a hook checker: while you type, it shows where the cut falls, so the hook sits above it instead of disappearing behind the link. Most posts lose their readers exactly there, not because the image was wrong but because the sentence that would have held them was one line too low.

Images with a lot of small text should be exported as PNG rather than JPEG, because LinkedIn recompresses photographs heavily. For the preview card that appears when a link is shared, the LinkedIn link preview tool produces the 1200 × 627 version, and the banner resizer covers the profile header.

Good to know

The built-in hook checker shows live when truncation starts. The exact limit depends on the rendering and changes with the platform – treat the display as a guide, not a guarantee.

Related tools

Frequently Asked Questions (FAQ)

Four questions about the post image and the caption – the two things that decide whether the post gets read.

How many characters of a post does LinkedIn show before cutting it off?
In the feed the caption is truncated after roughly 210 characters with a “see more” link, and it also stops after about three lines – whichever comes first. Everything a reader should see without clicking belongs in that first block, which is exactly what the hook checker in this tool measures while you type.
Does a square or a wide image give my caption more room?
A square image at 1200 × 1200 takes more vertical space, which pushes the caption down – and with it the “see more” link, so more of your opening lines stay visible. A wide image at 1200 × 628 is more compact and leaves the caption to carry the attention. Which wins depends on whether your image or your first sentence is the stronger hook.
Why does LinkedIn make small text on my image look worse?
LinkedIn recompresses every upload, and compression removes detail from thin strokes first – the same reason screenshots suffer on other networks. Type that is crisp in the original can arrive soft. Export as PNG when the image contains lettering, keep the type reasonably large, and avoid placing text near the edges.
What happens to my image when I only change the text?
Nothing. The crop and the export do not depend on the caption: the format stays as selected, the position you set is kept, and only the text panel changes. If you switch the format, though, the crop is recalculated for the new ratio – so it is worth finishing the wording before you decide between square and wide.