LinkedIn Post Size Guide: Image, Video, Carousel & Ad Dimensions

LinkedIn has evolved from a professional networking site into a full-scale content powerhouse—especially for businesses, marketers, founders, recruiters, and B2B brands. Yet despite its massive reach, many content creators unknowingly limit their visibility because they use wrong LinkedIn post sizes, upload low-resolution assets, or ignore the platform’s format specifications.

If your visuals get cropped, your PDFs appear blurry, or your ads look misaligned, the problem is not your creativity—it’s your formatting.

This Ultimate Guide to LinkedIn Post Size breaks down everything you need to know about image dimensions, carousel size, video size, ad specs, banner dimensions, and more. And this resource isn’t just theoretical—it’s a practical, expert-driven guide from the digital marketing specialists at The Info Technologies.

Whether you’re a marketer trying to optimize campaigns, a business owner trying to build authority, or a creator trying to grow your audience, this guide will help your content look professional, perform better, and convert more viewers into leads.

Why LinkedIn Post Size Matters More Than Ever

Before diving into technical specifications, let’s understand why correct LinkedIn post sizing is essential:

1. Higher Visibility in the Feed

Correctly sized images and videos receive more impressions because they occupy more real estate on desktop and mobile feeds.

2. Better Engagement

A polished, sharp visual:

increases likes
boosts comments
improves shareability
strengthens brand perception

The algorithm rewards quality—and quality includes correct dimensions.

3. Prevents Cropping & Stretching

Improper sizes cause:

cut-off text
blurred images
distorted visuals
reduced readability

This hurts brand reputation and reduces trust.

4. Improves Ad Performance

For LinkedIn Ads, correct formatting is non-negotiable. Using the right ad sizes increases CTR, CPC efficiency, and conversions.

5. Helps Build a Professional Online Brand

LinkedIn is the world’s largest professional network. Poorly formatted content makes your brand look unprofessional. Strong formatting builds credibility instantly.

LinkedIn Post Size Guide (Complete Updated Dimensions)

Primary Keyword used: linkedin post size

Below is the most accurate and updated LinkedIn post size chart for 2025, covering all types of posts.

1. LinkedIn Image Post Size (Standard Single Image Post)

Best LinkedIn Image Size:

Square (Recommended): 1200 x 1200 px
Horizontal: 1200 x 628 px
Vertical: 1080 x 1350 px

Ideal aspect ratios:

Square – 1:1
Horizontal – 1.91:1
Vertical – 4:5

Max file size:

5MB for images

Supported file types:

JPG
PNG
WEBP

SEO Tip:

Use square images to maximize mobile visibility. Landscape images appear smaller on mobile feeds.

2. LinkedIn Carousel Size (PDF Carousel Post Size)

Keyword use: linkedin post size for carousel

The LinkedIn carousel is one of the top-performing post formats—especially for B2B marketers.

Best LinkedIn Carousel Size:

1080 x 1080 px (Recommended)
1080 x 1350 px (Vertical alternative)

Accepted Format:

PDF only (Unlike Instagram/Facebook)

File size limit:

100MB maximum
Up to 300 pages

Best Practices for Carousel Posts:

Use short headlines (5–7 words per slide)
Use no more than 2–3 fonts
Add branding subtly (logo, footer strip)
Keep margins wide to avoid crop issues

Pro Tip:

The first slide must be highly compelling. It acts as a “scroll stopper.”

3. LinkedIn Video Post Size

Keyword use: linkedin post size for video

In 2025, LinkedIn is aggressively pushing video content. That means proper video dimensions are critical.

Best LinkedIn Video Sizes:

Square: 1080 x 1080 px
Vertical: 1080 x 1920 px
Horizontal: 1920 x 1080 px

LinkedIn Video Requirements:

File size: 75KB to 5GB
Length: 3 seconds – 15 minutes
File types: MP4, MOV
Aspect ratios: 1:1, 16:9, 9:16

Important Tip:

Vertical videos (9:16) perform exceptionally well due to full-screen visibility on mobile feeds.

4. LinkedIn Document Post Size

LinkedIn allows you to upload PDFs, PPTs, and DOCs as Document Posts.

Best Size for LinkedIn Document:

Portrait PDF: 1080 x 1350 px
Square PDF: 1080 x 1080 px

File limits:

Max size 100MB
PDF recommended over PPT/DOC for formatting consistency

Why Document Posts Work Well

Swipeable
High dwell time
Shareable
Great for educational content

Ideal for:

Case studies
Reports
Industry insights
Step-by-step guides

5. LinkedIn Ad Sizes (Complete Specifications)

Keyword use: linkedin ad size, linkedin post size

This section covers all major LinkedIn ad formats.

5.1. Single Image Ad Size

1200 x 628 px (recommended)
Aspect ratio: 1.91:1

5.2. Carousel Ad Size

1080 x 1080 px
Up to 10 cards

5.3. Video Ad Size

Horizontal: 1920 x 1080 px
Square: 1080 x 1080 px
Vertical: 1080 x 1920 px

Video Ad File Specs:

Max length: 30 minutes
File size: 200MB max

5.4. LinkedIn Spotlight Ad Size

Image size: 300 x 250 px
Logo size: 100 x 100 px

Spotlight ads are highly customizable and direct users to personalized landing pages.

5.5. LinkedIn Message Ad Size

(Formerly InMail Ads)

Message ads don’t require images, but the logo must be:

100 x 100 px

6. LinkedIn Profile Image Sizes (Personal Branding Guide)

Keyword use: linkedin profile picture size, linkedin cover size

Even your personal branding deserves high-quality formatting.

LinkedIn Profile Picture Size:

400 x 400 px (Minimum)
768 x 768 px (Recommended)
Format: JPG or PNG

LinkedIn Background Banner Size:

1584 x 396 px
Aspect ratio: 4:1

Company Page Logo Size:

300 x 300 px

Company Cover Banner Size:

1128 x 191 px

7. LinkedIn Page Banner and Showcase Page Sizes

LinkedIn Company Page Banner Size:

1128 x 191 px

LinkedIn Showcase Page Banner Size:

974 x 330 px

LinkedIn Life Tab Image Sizes:

1128 x 376 px (main image)
502 x 282 px (custom image)

8. LinkedIn Event Banner Size

Event Banner Size:

1920 x 1080 px

This is ideal for webinars, live sessions, or virtual summits.

9. LinkedIn Article Image Size

If you publish long-form articles on LinkedIn:

Article Cover Image Size:

744 x 400 px

Inline Image Size:

1200 px width recommended

10. LinkedIn Poll Image Size

Polls on LinkedIn allow optional visual elements.

Recommended Poll Image Size:

1200 x 1200 px

11. LinkedIn Job Post Image Size

Optimal Size for Job Post Visual:

1200 x 627 px

12. Complete LinkedIn Post Size Cheat Sheet

LinkedIn Format	Best Size (px)
Square Image Post	1200 x 1200
Horizontal Image	1200 x 628
Vertical Image	1080 x 1350
Carousel PDF	1080 x 1080
Vertical PDF	1080 x 1350
Video – Horizontal	1920 x 1080
Video – Vertical	1080 x 1920
Video – Square	1080 x 1080
Personal Banner	1584 x 396
Profile Photo	400 x 400
Company Banner	1128 x 191
Event Banner	1920 x 1080
Article Cover	744 x 400
Poll Image	1200 x 1200

This cheat sheet ensures you never upload a wrongly formatted image again.

13. Best Practices to Maximize LinkedIn Post Visibility

Beyond knowing the right LinkedIn post size, you need strategies that amplify reach, boost engagement, and improve conversions.

A. Use High-Resolution Images

Low-resolution visuals reduce credibility. Always export at 300 DPI when creating content on tools like Canva, Photoshop, or Illustrator.

B. Keep Text Minimal

Visuals with fewer than 20% text perform better.

C. Use Branding Correctly

Avoid large logos. Use subtle branding anywhere on the:

bottom-right
top-right
footer

D. Consider Mobile First

Since 63–70% of LinkedIn’s traffic is mobile, always preview your designs on mobile before posting.

E. Follow LinkedIn’s Recommended Aspect Ratios

A wrong ratio can lead to:

awkward cropping
misalignment
broken designs

F. Optimize File Size

Large files load slowly, hurting engagement.

Optimal sizes:

Image posts: under 2MB
Videos: under 50MB

14. Tools to Create Perfectly Sized LinkedIn Posts

Here are tools professionals use to create perfect LinkedIn assets:

1. Canva

Pre-sized LinkedIn templates available.

2. Adobe Illustrator

Best for precise dimensions and branding.

3. Photoshop

Great for advanced image editing.

4. Figma

Ideal for collaborative teams.

5. Adobe Express

Quick resizing and social templates.

15. How The Info Technologies Can Help You Master LinkedIn Marketing

You now know the exact LinkedIn post sizes for every content type. But size alone doesn’t guarantee results. You still need:

high-performance content
conversion-focused design
LinkedIn SEO optimization
audience-specific messaging
B2B growth strategy
lead generation funnels

This is where The Info Technologies becomes your competitive advantage.

As a global leader in digital marketing strategy, design, LinkedIn optimization, and content engineering, we help businesses:

create high-converting LinkedIn visuals
optimize profiles and company pages
craft viral content and carousel posts
run powerful LinkedIn advertising campaigns
generate consistent high-quality B2B leads
build strong LinkedIn brand authority

From startups to enterprises, companies across the world trust The Info Technologies for their LinkedIn branding and marketing success.

Conclusion — Master LinkedIn Post Sizes & Transform Your Visibility Today

Using the correct LinkedIn post size is one of the simplest yet most powerful ways to improve your content performance. In a competitive digital landscape, your brand’s credibility depends heavily on how professional and visually aligned your communication looks.

If you want expert help designing stunning LinkedIn visuals, crafting high-impact content, optimizing your company page, or running a professional LinkedIn campaign, The Info Technologies is your all-in-one solution.

We bring unmatched expertise in LinkedIn marketing, content creation, digital strategy, and lead generation, helping businesses worldwide grow faster and look more professional.

For LinkedIn optimization, design, and marketing support, email us directly at: theinfotechnologies@gmail.com

Let’s upgrade your LinkedIn presence and turn your audience into paying clients.