First impressions are vital in a professional setting, especially when we're talking about LinkedIn, the most influential professional network platform on the planet.

Individuals, small businesses, and large brands alike must ensure that all content represents them appropriately. This means creating quality posts, showcasing branding assets, and interacting with your network. 

That said, you must not overlook the basics.

In this article, we provide a full LinkedIn post size guide so you have all the details you need to stand out on the platform.

Why LinkedIn post size matters

LinkedIn may be a professional networking platform, but it’s still a social media website.

That means visuals play a major role. Although users are on LinkedIn for a different reason from Instagram or TikTok, they’re still programmed to scan, scroll, and consume information in the same way. 

Businesses rely on LinkedIn to establish their brand, showcase expertise, and engage with their target audience. They do this by sharing updates, images, articles, videos, and insights, all of which rely on strong visuals to make an impact. 

Whether you’re a freelancer or part of a global organisation, LinkedIn post size matters. Here are a few more reasons why. 

• Optimised reach: When your content is correctly formatted to LinkedIn’s guidelines, it appears on the feed precisely how you want it to. This reduces the chance of key components being cropped out or overlooked.
  
  For example, a header image with the wrong dimensions might cut off an important message or a chunk of your logo. 
  
  
• Visual appeal: Simply put, posts that look good are more likely to catch the attention of viewers. Formatting is a big part of this. Creating a professional and polished piece of content gives your post more visual appeal, improving its chances of gaining traction. 
  
  
• Improved engagement: As a networking platform, LinkedIn is a hive for engagement. Users support one another through likes and comments, and more importantly, shares. Posts that are carefully designed with the right dimensions are more likely to garner engagement. 
  
  Furthermore, LinkedIn prioritises content that drums up a lot of engagement. So, getting the LinkedIn post size right should be a priority. 
  
  
• Branding consistency: Using the correct post sizes helps with branding by making sure key elements, like logos, colours, and text are always visible. This is crucial in maintaining consistency, which leads to familiarity and trust with your network in the long term.
  
  
• Better mobile experience: Almost 60% of LinkedIn traffic comes from mobile users. Uploading content within the guidelines means your posts will be optimised for mobile and desktop users. Getting it right the first time helps you avoid time-consuming edits, cropping, and resizing.

Investing in social media management software with built-in image editing is a smart investment. It makes post-optimisation easier and gives you access to a range of handy features, like scheduling tools, collaboration systems, and data analytics. 

Other than its built-in image editor that enables you do resize and tailor your images, Sendible integrates with one of the most popular image and video editing platforms on the market, Canva.

This means you can create, edit, optimise, schedule, and monitor LinkedIn posts from one place. Plus, you can use its interactive calendar to manage social media content for all major platforms.

LinkedIn post size guide

LinkedIn allows you to post a lot more than job advertisements, text-based posts, and images. 

Whether you’re publishing an image, video, document, or otherwise, adhering to the platform’s recommended platforms is essential, as discussed above. 

Below, we provide the key specifications of each LinkedIn post type, helping you maximise visual appeal while maintaining a professional look.

Stand Out on LinkedIn: Lessons from the Best Profiles and Company Pages

Take a look at the list

LinkedIn post size: Images

• Recommended dimensions: 1200 x 627 pixels (1.91:1 aspect ratio)
• Resolution: At least 1200 pixels wide for optimal quality
• Maximum file size: 5MB
• Recommended file format: JPG or PNG 

When to use LinkedIn images

• Targeted outreach posts for specific audiences
• Personal updates
• Promoting events
• Recruiting candidates
• Driving traffic to your website

LinkedIn post size: Videos

• Recommended dimensions: 1080 x 1080 pixels (1:1 aspect ratio), or 1920 x 1080 pixels (16:9 aspect ratio)
• Resolution: 360p (minimum), 720p (recommended)
• Maximum file size: 5GB
• Video length: 3 seconds to 10 minutes
• Recommended file format: MP4

When to use LinkedIn videos

• Storytelling
• Advertisement videos
• Demonstrating product features
• Product or service demonstrations
• Seminars
• Event coverage
• Sharing insights

LinkedIn post size: Carousels

• Recommended dimensions: 1080 x 1080 pixels (1:1 aspect ratio, square) or 1080 x 1350 pixels (4:5 aspect ratio, portrait)
• Resolution: 400 pixels minimum width
• Maximum file size: 10MB per slide
• Recommended file formats: JPG or PNG

When to use LinkedIn carousels

• Displaying multiple offerings as a slideshow
• Sharing tips and insights
• Creating interactive-style posts
• Step-by-step guides and tutorials
• Before-and-afters
• Sharing user-generated content (UGC) or testimonials
• Case studies

LinkedIn post size: Documents

• Recommended dimensions: 8.5 x 11 inches (letter size for PDFs)
• Aspect ratio: Can vary depending on the content layout
• Square documents: 1:1
• Landscape documents: 16:9
• Portrait documents: 4:5
• Maximum file size: 100MB
• Recommended file format: PDG, PPTX, or DOCX

When to use LinkedIn documents

• Product portfolios
• Slideshow presentations
• Slide decks
• Detailed reports
• Whitepapers
• One-pagers
• Guides
• How-tos

LinkedIn post size: Sponsored content (ad posts)

• Recommended dimensions: 1200 x 627 pixels (1.91:1 aspect ratio, landscape)
• Minimum width: 400 pixels
• Maximum file size: 5MB (images), 200MB (videos)
• Video length: 3 seconds to 30 minutes
• Recommended file formats: JPG, PNG (images); MP4, MOV (videos)

When to use LinkedIn documents

• Promoting high-value content (whitepapers, ebooks, webinars, or targeted content for lead generation)
• Targeting specific audiences
• Increasing brand awareness
• Driving website traffic
• Boosting registrations (events, seminars, webinars, etc.)

LinkedIn post size: Profile and company page content

• Recommended dimensions
  • Personal profile: 268 x 268 pixels (minimum), 400 x 400 pixels (recommended), 1:1 aspect ratio
  • Cover photo: 1584 x 296 (recommended), 4:1 aspect ratio
• Maximum file size
  • Profile photo: 3MB
  • Cover photo: 8MB
• Recommended file formats
  • Profile photo: JPG or PNG
  • Cover photo: JPG, PBG, or GIF

How can Sendible help with LinkedIn post size optimisation?

We understand that staying on top of sizes, dimensions, and specifications for multiple social media platforms can be overwhelming. That’s why we put together this guide. 

Knowing what LinkedIn post size to use is one aspect of a broader process. Creating content, editing images and videos, and posting at optimised times are other key components to a successful LinkedIn strategy. That’s where Sendible comes in. 

Sendible is an all-in-one social media management platform that streamlines your workflow in all areas and helps ensure every post is positioned for success. We’re creating the best place for marketers and agencies to create quality social media strategies that make an impact on clients and audiences. 

With Sendible, here are a few ways we can help you get the most out of LinkedIn. 

• Image and video editing: Sendible integrates with the leading editing tool, Canva, giving you the perfect tool to create engaging images and videos. After a recent update, you can now edit your images in our Smart Compose Box, speeding up the process. Sendible also has its own built-in image editor that allows you to tailor your posts to this platform quickly. If your format is not according to LinkedIn's guidelines, a warning message will pop up reminding you to optimise your post.
• Optimised scheduling: Plan and schedule months in advance to maintain consistency, even during the busiest times. All content is accessible through an interactive calendar, mitigating the need to bounce between apps and tabs. 
• Collaborate with ease: Sendible is designed for individuals and teams. Our collaboration features enable you to assign specific members to tasks and set up approval workflows so no content accidentally goes live without final sign-off. 
• Tap into AI: Using our AI Assist, you can speed up tedious tasks, like caption writing and content idea generation. This tool is continually updated, keeping your business on the cusp of technological advancements. 
• In-depth analytics: With Sendible, you gain access to in-depth analytics that go beyond the standard data provided by social media apps. This allows you to monitor performance, track trends, and refine your strategy for better results. Plus, you can publish tailored reports daily, weekly, or monthly for clients and key stakeholders. 

Sendible is one of the most competitively priced management tools on the market, giving you access to quality features at affordable prices. Don’t take our word for it. Try Sendible for free by signing up for our 14-day trial.

FAQs: LinkedIn post size queries

1. What is the best size for a LinkedIn post?

The best LinkedIn post size is dependent on the content type:

• Single image: 1200 x 627 pixels, 5MB (maximum)
• Videos: 1080 x 1080 pixels or 1920 x 1080 pixels, 720p, 5GB (maximum)
• Carousels: 1080 x 1080 pixels or 1080 x 1350 pixels, 10MB per slide
• Documents: 8.5 x 11 inches (letter size for PDFs), 100MB (maximum)
• Sponsored ads: 1200 x 628 pixels, 5MB (images), or 200MB (videos)

2. What size is a LinkedIn Post 2025?

In 2025, a LinkedIn post size can vary significantly, depending on the content type. 

• Single image: 1200 x 627 pixels, 5MB (maximum)
• Videos: 1080 x 1080 pixels or 1920 x 1080 pixels, 720p, 5GB (maximum)
• Carousels: 1080 x 1080 pixels or 1080 x 1350 pixels, 10MB per slide
• Documents: 8.5 x 11 inches (letter size for PDFs), 100MB (maximum)
• Sponsored ads: 1200 x 628 pixels, 5MB (images), or 200MB (videos)

3. Can you post 1920x1080 on LinkedIn?

Yes, you can post 1920x1080, particularly for videos or high-resolution horizontal images, though resizing might occur.

4. What size is a LinkedIn post 1200x628?

This is the recommended size for landscape images and links shared on LinkedIn.