The Ultimate Guide to LinkedIn Post Image Sizes

You’ve spent an hour crafting the perfect hook, editing your insights, and perfecting your call-to-action. You hit upload on a gorgeous graphic, and then you see it: your headline is awkwardly chopped off, your headshot looks pixelated, or your vertical image has been squeezed into a weird, blurry box.

Nothing ruins a professional post faster than bad formatting. Because LinkedIn feeds are optimized for quick scrolling—especially on mobile devices—using the correct image dimensions isn’t just about aesthetics; it’s about algorithmic visibility and keeping your audience’s attention.

Here is your master cheat sheet for every LinkedIn post image size, profile element, and banner specification you need to keep your content looking sharp.

1. Standard Feed Image Sizes (Single Posts)

When you upload a standalone image directly to your LinkedIn feed, you generally have three layout options. Choosing the right one depends on what kind of story you are telling:

| Format | Dimensions (Pixels) | Aspect Ratio | Best Used For |
| :— | :— | :— | :— |
| Portrait (Vertical) | $1080 times 1350$ | $4:5$ | Maximum mobile engagement. Takes up the most screen real estate. |
| Square | $1080 times 1080$ | $1:1$ | The safe all-rounder. Clean, balanced layout for graphics and photos. |
| Landscape | $1200 times 627$ | $1.91:1$ | Link previews and traditional banners. Wide format, though smaller on phones. |

• Pro Tip for Mobile-First Reach: Since over 60% of LinkedIn traffic happens on smartphones, Portrait ($1080 times 1350$) is widely favored by top creators. It pushes surrounding text down and forces mobile users to physically swipe or scroll past your content, significantly increasing dwell time.

2. Link Preview Image Sizes

If you are dropping an external URL into your post text, LinkedIn automatically generates a preview box pulling metadata from your website.

• Recommended Link Preview Size: $1200 times 627$ pixels ($1.91:1$ ratio).
• The Catch: If your website’s Open Graph (OG) image isn’t set to this exact dimension, LinkedIn will crop or display a tiny, low-resolution thumbnail. Always check your blog or landing page image tags before sharing URLs.

3. Carousel and Document Post Sizes

Document uploads (PDF slide decks) are one of the highest-performing content types on LinkedIn. When users swipe through your presentation, consistency is everything.

• Recommended Slide Size: $1080 times 1080$ pixels (Square) or $1080 times 1350$ pixels (Portrait).
• File Limits: Save your presentation cleanly as a PDF, and keep individual file sizes under 100MB (though individual slide optimization keeps things loading instantly). Avoid cramped fonts; anything smaller than 16pt text can become unreadable on mobile screens.

4. Profile & Company Page Dimensions

Your personal brand and company page set your first impression. If your banner looks distorted, prospective clients or employers will notice.

• Personal Profile Photo: $400 times 400$ pixels minimum ($1:1$ ratio). Remember that LinkedIn crops your profile picture into a circle, so keep your face and focal points tightly centered.
• Personal Background Banner: $1584 times 396$ pixels ($4:1$ ratio). Warning: On mobile, your profile photo overlaps the bottom-left portion of your banner. Keep crucial text and logos shifted toward the right side.
• Company Page Logo: $400 times 400$ pixels.
• Company Page Cover Image: $1128 times 191$ pixels (or larger scaled proportionally).

5. Technical Guardrails: Formats and Limits

Even if your dimensions are correct, your upload can fail if you ignore LinkedIn’s backend constraints:

• Max File Size: 5MB for standard feed images.
• Accepted File Formats: JPEG, PNG, and WebP. Use JPEG for photographs to keep file sizes lean; use PNG for graphics, illustrations, or text-heavy quote cards to keep typography crisp.
• Color Profile: Export your designs in sRGB to prevent your brand colors from looking dull or washed out once published.

Summary Checklist Before You Hit Post

1. Are you targeting mobile readers? Use $1080 times 1350$ px (Portrait).
2. Do you want a foolproof, clean layout? Use $1080 times 1080$ px (Square).
3. Is your file under 5MB and saved as a PNG/JPEG?

Getting these technical details right takes less than two minutes during the design phase—and it ensures your hard-earned content looks as professional as the words you write.