LinkedIn Post Size Guide for Every Format

Getting your LinkedIn post size right is the first step to making your content look sharp, professional, and scroll-stopping. For a standard image, the sweet spot is 1200 x 627 pixels, a classic 1.91:1 aspect ratio that ensures your visuals display correctly without awkward cropping.

But if you really want to own the mobile feed, vertical is the way to go. Use a 1080 x 1350 pixel (4:5 ratio) image. It takes up more of that precious screen real estate, grabbing your audience's attention and holding it.

Your Quick-Reference LinkedIn Dimensions Cheat Sheet

Let's be honest, nailing your LinkedIn dimensions is the foundation for creating content that stops the scroll. A perfectly sized image, video, or document doesn't just look more professional—it genuinely performs better because it commands attention in a crowded feed. Think of this guide as your definitive source for the most up-to-date specs.

Whether you're a busy social media marketer or a creator obsessed with quality, knowing these numbers saves you time and prevents frustrating formatting headaches. We've laid out the exact post sizes you need for every format, from standard feed images and slick carousels to your company page assets. This is the cheat sheet that will keep your content looking flawless on both desktop and mobile, every single time.

To get started, here's a quick visual summary of the most common formats and their ideal sizes.

As you can see, while every post type has its own specs, the common thread is a focus on clarity and a mobile-first approach. Getting these details right on LinkedIn is just as critical as it is on any other platform. For a wider view, you can always check out our complete guide on social media image sizes for a complete 2025 cheat sheet.

Getting Your LinkedIn Image Post Dimensions Right

Image posts are the bread and butter of LinkedIn, but getting the dimensions perfect can have a huge impact on how well they perform. It's not just about pixel counts; choosing the right aspect ratio is a strategic move. Knowing how each format behaves on different devices is key to creating visuals that actually stop the scroll.

You'll mostly be working with JPG and PNG files. The general rule is to use JPG for photos and complex visuals, while PNG is your go-to for graphics with sharp text or transparent backgrounds to keep things looking crisp.

Square vs. Portrait: Making the Right Choice

When creating a standard image post, you have two main choices. Each serves a different purpose, especially when you consider who's seeing it on mobile versus their desktop.

• Square Images (1:1 Ratio): The standard recommendation here is 1080 x 1080 pixels. This is your safe bet—a clean, versatile option that looks consistent and professional across every device. You can't go wrong with a square image for brand visuals.
• Portrait Images (4:5 Ratio): To make a real impact, go with 1080 x 1350 pixels. This vertical format is a game-changer on mobile. It takes up significantly more screen real estate, pushing other posts out of view and grabbing your audience's attention for that crucial extra second.

For anyone serious about content marketing on LinkedIn, that 4:5 portrait image is your secret weapon. By owning more vertical space in the mobile feed, you give your message more time to resonate before someone scrolls past.

How to Avoid Awkward Cropping

There’s nothing worse than a perfectly crafted post ruined by a weirdly cropped image. The trick is to always design with "safe zones" in mind.

Make sure your logo, core message, or the main focal point of your image is centered. This simple step prevents critical elements from getting chopped off when LinkedIn automatically adjusts the display for different devices or generates thumbnail previews.

Getting images right is a fundamental skill for any marketer. This isn't just a social media thing; brands constantly optimize images for e-commerce, too. For instance, this definitive guide to product image size on Shopify shows how critical sizing is for fast load times and a great customer experience. On LinkedIn, a perfectly sized image does the same thing—it signals professionalism and a sharp eye for detail.

Mastering LinkedIn Carousel Post Dimensions

Carousel posts, often called document posts, are powerhouses for sparking conversations and sharing deep-dive content on LinkedIn. They transform flat information into an interactive story, but getting the technical specs right is the first step to creating a flawless, high-performing post.

These posts aren't uploaded as a series of images but as a single PDF document. This format is what allows people to click through your slides. The file itself can be up to 100MB and hold as many as 300 pages, giving you an expansive canvas to tell a compelling story.

The Best Dimensions for Carousel Slides

Like with standard images, you have two main choices for your carousel slide dimensions. Both work well, but one has a clear edge in the mobile feed.

• Square Slides (1:1 Ratio): The go-to dimension here is 1080 x 1080 pixels. This is a solid, clean format that looks great on all devices and is perfect for creating balanced, straightforward designs.
• Portrait Slides (4:5 Ratio): For maximum impact, use 1080 x 1350 pixels. This taller, vertical orientation commands significantly more screen real estate on mobile, making your content far more immersive and harder to scroll past.

To see how this works in practice, here’s a look at how a tool like PostNitro gives you a head start with perfectly sized templates right out of the box.

This kind of built-in setup takes all the guesswork out of the equation, so you can stop worrying about the technical specs and focus completely on creating fantastic content.

Streamlining Your Carousel Workflow

Let's be honest: creating individual images and then stitching them together into a multi-page PDF is a tedious extra step. It’s exactly this kind of friction where a dedicated tool becomes a massive time-saver.

PostNitro’s AI carousel maker automates the entire process. It helps you generate compelling content, automatically places it into perfectly sized slides—either square or portrait—and then exports a ready-to-upload PDF with a single click.

This completely removes the need for separate design and file conversion tools, slashing your creation time from hours down to just a few minutes. If you want to dive even deeper, our complete guide to LinkedIn carousel dimensions is packed with more advanced tips. This efficiency means you can produce more high-quality, engaging carousels without getting bogged down by technical headaches.

Getting Your LinkedIn Video Specifications Right

Video is an absolute powerhouse on LinkedIn, but its success often comes down to the technical details. While the platform is flexible with formats, to maximize engagement, you have to think mobile-first with your aspect ratios. This is non-negotiable for making your content look professional in the feed.

Just like with images, square (1:1) and vertical (4:5) videos are the clear winners for mobile viewing. Why? They take up more screen real estate, making them far more immersive and harder to scroll past. The traditional landscape (16:9) format is still supported, but it looks tiny on a phone, seriously watering down its impact.

Key Technical Limits for Video Uploads

Before you post, double-check that your video file aligns with LinkedIn's rules. Sticking to these limits is the best way to avoid upload errors and ensure a smooth playback experience.

• File Duration: Your video must be at least 3 seconds long and no more than 10 minutes.
• File Size: The maximum file size is 5GB. That's generous, but it’s still smart to optimize your video for quicker uploads.
• Accepted Format: The most reliable and recommended video format is MP4.

As you're finalizing your video, it's also a great idea to understand how to reduce video file size without sacrificing quality. This helps your content upload faster and play back smoothly, even for people on slower connections.

Don't Forget the Video Thumbnail

Your video's thumbnail is the very first impression you make, and it plays a huge role in whether someone clicks play. Never let LinkedIn choose a random, blurry frame for you. Always upload a custom thumbnail to grab attention from the start.

The ideal dimension for a LinkedIn video thumbnail is 1920 x 1080 pixels. Think of a well-designed thumbnail as the movie poster for your content—it's there to convince viewers that it's worth their time.

By creating a compelling thumbnail and ensuring your video meets all the technical specs, you're setting your content up for success. Of course, this is exactly what tools like PostNitro were built to simplify. Our powerful AI features can handle all the technical details for you, so you can focus on creating great video content.

Essential Specs for Profile and Company Page Images

Think of your LinkedIn profile and company pages as your digital storefronts. Getting these foundational images right is non-negotiable for making a strong, professional first impression. Every visual asset, from your personal profile picture to your company’s cover image, contributes to your credibility.

These images are static but incredibly visible. They show up in search results, on connection requests, and alongside every comment you make. Nailing the recommended linkedin post size for these elements is key to ensuring your brand looks polished and consistent across the platform.

Personal Profile Image Specs

Your personal profile is your brand headquarters. The images here need to be crisp, professional, and instantly recognizable. They're your digital handshake, so you can't afford to be sloppy.

• Profile Picture: The sweet spot is 400 x 400 pixels. This square image is your main identifier, so use a clean, high-resolution headshot.
• Background Banner: For your personal banner, you'll need a 1584 x 396 pixels image. This wide, panoramic space is your chance to showcase your professional brand, a key project, or your contact info.

Just a heads-up: the banner looks different on mobile versus desktop, and your profile picture will cover a portion on the left. Keep critical info away from the edges and closer to the center. Our free LinkedIn banner maker is a great tool for getting this crop right every single time.

Company Page Image Specs

For any business, the company page is the central hub for followers, customers, and potential hires. This means your visuals must be on-brand and professional to build trust.

• Company Logo: The standard size is 300 x 300 pixels. This is the logo that appears next to your company name on posts and in search results.
• Cover Image: Your company cover image should be 1128 x 191 pixels. This banner is the first thing visitors see, making it prime real estate for your brand’s tagline or a powerful visual.

A quick pro tip: When designing your banners, always think about the "safe zones." This is the central area of the image that stays visible on all devices, ensuring your most important text or graphics never get awkwardly cut off. Keep your core message away from the edges.

Understanding LinkedIn Character Limits and Copy Length

While a perfect linkedin post size for visuals stops the scroll, your copy is what convinces people to stay. Understanding LinkedIn’s character limits is essential for writing a message that hooks your audience and drives engagement.

LinkedIn gives you generous space for your posts, but not all of it shows up in the feed right away. That's why a strategic approach to your copy length is key to making a real impact.

The Critical First 210 Characters

For a standard feed post, LinkedIn gives you a hefty 3,000-character limit. This was a big jump from the old 1,300-character limit, giving creators around 400-500 words to work with. If you're curious about how this shift changed content strategies, this is a great read on the expanded limit.

But here’s the catch: the most important part of your post is the beginning. Only the first 210 characters (roughly 3-4 lines of text) are visible before that infamous "see more" link cuts you off. This tiny window is your one shot to pique curiosity and earn the click.

To make this opening count, you must:

• Start with a strong hook: Kick things off with a provocative question or a bold statement.
• Promise value: Tell the reader exactly what they’ll get from reading the rest of your post.
• Use emojis strategically: A well-placed emoji can add personality and draw the eye.

Think of your opening lines as the headline for your post. If they don't immediately signal value or spark curiosity, the rest of your message—no matter how brilliant—will go unread.

Standard Posts vs. LinkedIn Articles

It's important not to confuse the character limit for a standard post with the space you get for a LinkedIn Article. They serve different purposes and have vastly different rules.

• Standard Posts: Capped at 3,000 characters, these are built for shorter, punchier updates. They're perfect for starting discussions and sharing quick insights directly in the feed.
• LinkedIn Articles: With a massive 125,000-character limit, this format is a full-blown blogging platform. It’s the go-to for long-form thought leadership, deep-dive case studies, and comprehensive guides.

Choosing the right format boils down to your content's depth and goals. For daily engagement, standard posts are your best bet. For establishing expertise and creating a lasting resource, Articles are the way to go.

And if you need to keep your copy tight and on-point, PostNitro's free character counter tool is a simple way to stay within those limits.

How PostNitro Takes the Headache Out of Your LinkedIn Workflow

Let's be honest. Juggling an endless list of dimensions, aspect ratios, and file formats for LinkedIn is a massive pain. It's the kind of tedious work that can bring your content creation to a screeching halt. That constant need to double-check specs and resize images is exactly what pulls you away from what really matters: crafting a powerful message.

This is precisely where PostNitro comes in. We built our platform to eliminate all that guesswork. Forget about manually setting up templates or losing sleep over whether your image will get cropped awkwardly. We’ve handled all the technical details for you.

Start with Pre-Sized, Perfect Templates

With PostNitro, every piece of content you create begins on a perfectly optimized foundation. Our entire library of professional templates is already pre-sized for every LinkedIn format, from a scroll-stopping 4:5 portrait image to a multi-slide document post.

• Build Carousels in Clicks: Instead of designing slides one by one and wrestling with a PDF compiler, our AI carousel maker does it all. It generates content, designs stunning slides, and exports a ready-to-upload PDF in a single workflow.
• Write Copy That Connects: Our integrated AI writer helps you draft engaging copy that sounds human. It understands the professional tone of LinkedIn, helping you produce text that grabs attention and resonates with your audience.

PostNitro is designed to be your all-in-one content creation command center. By weaving design, copywriting, and formatting into a single, intuitive platform, we give you the power to produce high-quality, perfectly sized LinkedIn content in minutes, not hours.

Industry data suggests the sweet spot for LinkedIn post engagement is between 1,300-2,000 characters. PostNitro's tools are built to help you hit that target effortlessly, especially with carousels that can tease a topic in the main post before diving deep in the slides. For more on this, check out the great insights on optimal LinkedIn post length over at facelift-bbt.com.

Ultimately, our goal is simple: we want to free you from the technical grunt work. By automating the most frustrating and time-consuming parts of the process, PostNitro gives you back the freedom to focus on your strategy and message.

Your LinkedIn Post Size Questions, Answered

Alright, let's wrap this up by hitting some of the most common questions that pop up when creators and marketers are trying to nail down their LinkedIn post dimensions. Think of this as your go-to cheat sheet for those tricky little details that always seem to cause a headache.

Getting these specs right is the final piece of the puzzle. It’s what separates a professional post from an amateur one. Here are the clear, no-nonsense answers you need to post with confidence every single time.

What Is The Best Image Size For LinkedIn Posts?

For the absolute best results on mobile, aim for 1080 x 1350 pixels. This 4:5 aspect ratio takes up more vertical space in the feed, making your post more prominent and stopping people from scrolling right past it.

That said, you can never go wrong with a classic square image at 1080 x 1080 pixels (a 1:1 ratio). It’s a versatile and safe bet that guarantees a crisp, professional look on both desktop and mobile, making it a reliable workhorse for any content strategy.

Why Does My LinkedIn Cover Photo Look Blurry?

A blurry cover photo is a classic, frustrating problem. It almost always boils down to one of two things: a low-resolution image file or LinkedIn's aggressive image compression. To sidestep this, you need to be precise.

Start by creating your banner at the recommended 1584 x 396 pixels. When you export, save it as a high-quality PNG and make sure the file is under the 8MB limit. This combination is usually enough to outsmart the compression algorithm and keep your banner looking sharp.

Don’t forget to keep your most important visuals and text within the central "safe zone" of the banner. This is key to preventing them from getting awkwardly cropped on different devices and ensures your brand looks good everywhere.

Can I Post A Multi-Page PDF On LinkedIn?

Yes, you definitely can! This format is what we call a carousel or document post, and it’s one of the most powerful ways to share detailed information on the platform. You simply upload a PDF file when creating a post, and LinkedIn converts it into an interactive, multi-slide document that users can click through right in the feed.

For the best viewing experience, design each slide of your PDF with a square (1:1) or portrait (4:5) aspect ratio. The ideal dimensions are 1080 x 1080 pixels for square and 1080 x 1350 pixels for portrait. Just be sure the final PDF file stays under 100MB.

Tired of juggling all these dimensions and formats? Let PostNitro take care of it. Our AI-powered carousel maker comes loaded with perfectly sized templates for every LinkedIn post type, so you can stop guessing and create stunning, professional content in minutes. Check it out at https://postnitro.ai.