LinkedIn Post Size Guide 2026: Text Limits and Image, Video, and Document Dimensions

Most "LinkedIn size" guides only cover pixels. The size that actually decides whether your post gets read is the text one: LinkedIn hides everything after roughly 140 characters on mobile behind a "See more" link. This guide puts the text limits, the truncation point, and every current image, video, and document dimension in one place.

TL;DR: LinkedIn Post Sizes at a Glance

Post text limit: 3,000 characters.
See more cutoff: about 140 characters on mobile, about 210 on desktop. Put your hook before it.
Single image or link preview: 1200 x 627px (1.91:1).
Square image: 1080 x 1080px (1:1). Portrait: 1080 x 1350px (4:5).
Video: up to 1920 x 1080px, 3 seconds to 15 minutes (10 minutes on the mobile app).
Document (carousel): PDF at 1080 x 1080px or 1080 x 1350px, up to 300 pages.

Jump to: Text limits and the see more cutoff - Image sizes - Video sizes - Document and carousel sizes - Profile and company page sizes - File and format requirements - Design best practices - FAQ

Text Limits and the See More Cutoff

The single most useful "size" on LinkedIn is not a pixel dimension. A LinkedIn post can hold up to 3,000 characters, but the feed only shows the first line or two before collapsing the rest behind "See more."

Mobile app: roughly 140 characters are visible before the cutoff.
Desktop feed: roughly 210 characters are visible.

Because most browsing happens on mobile, treat the first 140 characters as your headline. Front load the hook, the surprising number, or the question there, then use a line break so the "See more" prompt sits on its own line. Everything after the cutoff only gets read if the first line earns the click.

Other text limits worth knowing:

Element	Limit
Post body	3,000 characters
Comment	1,250 characters
Profile headline	220 characters
Article headline	150 characters
Article body	110,000 characters
About / summary	2,600 characters
Connection request note	300 characters

For the full breakdown of every field, including messaging and company page limits, see our dedicated LinkedIn post character limits guide and the cross platform social media character limits guide.

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Image Post Sizes

LinkedIn accepts a range of aspect ratios, but three sizes cover almost every post. Upload at these exact pixel dimensions so LinkedIn does not crop or resample your work.

Single image or link preview: 1200 x 627px

Aspect ratio: 1.91:1 (landscape)
Best for shared links, blog promos, and announcements
The safe default that displays cleanly on both desktop and mobile

Square: 1080 x 1080px

Aspect ratio: 1:1
Best for infographics, quote cards, and product shots
Takes up more vertical space in the feed than a landscape image

Portrait: 1080 x 1350px

Aspect ratio: 4:5
The tallest format the feed allows, so it occupies the most screen space on mobile
Best for mobile first infographics, lists, and screenshots

Which one to use: portrait (1080 x 1350px) claims the most feed real estate on mobile and often earns more attention. Landscape (1200 x 627px) is the right pick when the image is a link preview or will be reshared to other platforms. Square sits in between and is the safest cross platform choice.

Video Post Sizes

Native video can be uploaded in several aspect ratios. Match the frame to where it will be watched: vertical and square dominate the mobile feed, while 16:9 suits screen recordings and webinars.

Orientation	Dimensions	Aspect ratio
Landscape	1920 x 1080px	16:9
Square	1080 x 1080px	1:1
Portrait	1080 x 1350px	4:5
Vertical	1080 x 1920px	9:16

Resolution: up to 1920 x 1080px (1080p recommended).
Length: 3 seconds minimum, up to 15 minutes when uploading from desktop and 10 minutes from the mobile app.
File size: up to 5GB.
Format: MP4 with the H.264 codec is the safest choice.

For feed videos, shorter usually wins: aim to hook viewers in the first few seconds and keep most native clips well under three minutes. Add captions, since many people watch with sound off.

Document and Carousel Sizes

LinkedIn's "carousel" is really a document post: you upload a multi page PDF and readers swipe through the pages. It is one of the highest reach formats on the platform.

Format: PDF.
Page dimensions: 1080 x 1080px (square) or 1080 x 1350px (portrait). Portrait fills more of the mobile screen.
Page count: up to 300 pages, though 6 to 15 pages is the practical sweet spot before readers drop off.
File size: up to 100MB.

Design each page as a full slide: a bold cover that states the payoff, one idea per page, page numbers so people know how far they are, and a final page with a clear call to action. Keep type large enough to read on a phone.

Profile and Company Page Sizes

These are not post sizes, but they share the same canvas, so here are the current dimensions.

Personal profile:

Profile photo: 400 x 400px (displayed as a circle)
Background / cover photo: 1584 x 396px (4:1)

Company page:

Logo: 300 x 300px
Cover image: 1128 x 191px

Because the profile photo overlaps the lower left of the background photo, keep important text and logos out of that corner.

File Size and Format Requirements

Images

Maximum file size: 8MB
Formats: JPG or PNG (PNG for graphics and text, JPG for photos)
Color space: sRGB

Videos

Maximum file size: 5GB
Formats: MP4 or MOV, H.264 codec
Frame rate: up to 60fps

Documents

Maximum file size: 100MB
Format: PDF

Design Best Practices

Getting the dimensions right only prevents cropping. These habits are what make a correctly sized post perform.

Write for the cutoff. Your first 140 characters are the whole ballgame on mobile. If you want to include a link, our guide on how to add hyperlinks to LinkedIn posts covers where to place it so it does not eat into the preview.
Prioritize mobile. The majority of LinkedIn browsing happens on phones, so use large, high contrast type and test how the post looks on a small screen before publishing.
Stay consistent. Reuse the same fonts, colors, and layout across image and document posts so your content is recognizable in the feed.
Give text room to breathe. Line breaks between short paragraphs make long posts scannable and push the "See more" prompt onto its own line.
Pair the format with the goal. Documents for teaching, video for stories and demos, single images for announcements and link shares.

For more on turning these specs into reach, see how to market yourself on LinkedIn and our roundup of the best hashtags for LinkedIn, bearing in mind LinkedIn retired hashtag following in late 2024 so tags now signal topic rather than drive distribution.

Frequently Asked Questions

What is the ideal LinkedIn image post size in 2026?

Use 1200 x 627px for a single image or link preview (1.91:1 landscape), 1080 x 1080px for a square image (1:1), or 1080 x 1350px for portrait (4:5). Portrait takes up the most space in the mobile feed, while landscape is best for link previews and images you will reshare elsewhere.

What is the LinkedIn post character limit, and where does the "See more" cutoff fall?

A LinkedIn post can hold up to 3,000 characters. The feed only shows about the first 140 characters on mobile and about 210 on desktop before hiding the rest behind a "See more" link, so put your hook in the first 140 characters.

What are the best dimensions for a LinkedIn document (carousel) post?

Upload a PDF with pages at 1080 x 1080px (square) or 1080 x 1350px (portrait). LinkedIn allows up to 300 pages, but 6 to 15 pages usually performs best before readers drop off. Keep the file under 100MB.

What video sizes and lengths does LinkedIn support?

Native video supports 16:9 (1920 x 1080px), 1:1 (1080 x 1080px), 4:5 (1080 x 1350px), and 9:16 (1080 x 1920px). Videos can run from 3 seconds up to 15 minutes when uploaded from desktop, or 10 minutes from the mobile app, with a maximum file size of 5GB. MP4 with H.264 is the safest format.

What are the current LinkedIn profile picture and banner sizes?

Personal profile photos are 400 x 400px and background photos are 1584 x 396px (4:1). Company pages use a 300 x 300px logo and a 1128 x 191px cover image. Keep important content out of the lower left of the background, since the profile photo overlaps it.

Should I post landscape, square, or portrait images on LinkedIn?

Portrait (1080 x 1350px) claims the most vertical space in the mobile feed and often earns more attention. Landscape (1200 x 627px) is best for link previews and images reshared to other platforms. Square (1080 x 1080px) is the safest cross platform choice and works well inside carousels.

What is the maximum file size for LinkedIn images and videos?

Images can be up to 8MB in JPG or PNG format. Videos can be up to 5GB in MP4 or MOV format. Document posts can be up to 100MB as a PDF. Keeping files smaller than the maximum helps them load quickly for mobile viewers.

How long can a LinkedIn comment be?

LinkedIn comments have a limit of 1,250 characters. That is enough for a detailed reply, but the most engaging comments are still short and specific rather than long paragraphs.