LinkedIn Post Size 2026: Image, Video and Document Specs

LinkedIn's recommended post image size is 1200 × 627 pixels (1.91:1), and square 1080 × 1080 images are the popular alternative. Videos can run from 3 seconds to 10 minutes and weigh up to 5 GB, and document posts, the "PDF carousels", can hold up to 300 pages and 100 MB.

These specs come from LinkedIn's Help Center, checked on September 29, 2026. They apply to posts from a personal profile as well as from a company Page.

LinkedIn post sizes at a glance

Sources: LinkedIn Help, image specifications, video specifications and document uploads, checked on September 29, 2026.

LinkedIn image sizes

LinkedIn's specification for images in posts is a 1.91:1 ratio, or 1200 × 627 pixels, and images must be more than 200 pixels wide. It's also the shape LinkedIn uses for link previews.

Many brands post square images (1080 × 1080) instead: they display in full and take more vertical space in the feed than a landscape image. Whatever ratio you choose:

• Export PNG for graphics with text, JPEG for photos.
• Keep files under 3 MB, the limit in LinkedIn's image specs for Pages.
• Use large text: feed images appear small on phones.

Your profile and Page banners follow their own sizes: see our LinkedIn banner size guide.

LinkedIn video specs

According to LinkedIn's video specifications for Pages:

• Length: 3 seconds to 10 minutes.
• File size: 75 KB to 5 GB.
• Resolution: 256 × 144 to 4096 × 2304 pixels.
• Aspect ratio: from 1:2.4 to 2.4:1, so vertical, square and horizontal videos all work.
• Frame rate and bitrate: 10 to 60 fps, 192 kbps to 30 Mbps.
• Formats: MP4 is the safe choice. LinkedIn also lists MKV, WebM and several others, and no longer supports AVI or QuickTime (MOV) files.

For a clean result, export 1080p MP4 files: 1920 × 1080 for horizontal, 1080 × 1080 for square or 1080 × 1920 for vertical videos. Add captions so the video works with the sound off.

LinkedIn document posts (PDF carousels)

A document post shows each page as a slide that people swipe through, which is why they're called LinkedIn carousels. LinkedIn's rules:

• File types: PDF, PPT, PPTX, DOC or DOCX.
• Limits: 100 MB and 300 pages.
• One page size: PDFs whose pages have different sizes must be fit to the same page size.
• No animation: videos and animations inside the document appear as static images.
• No edits after posting: you can change the description, but not the document itself.

Design your slides at 1080 × 1080 (square) or 1080 × 1350 (4:5 portrait) and export them to PDF. Keep one idea per slide, with a font large enough to read on a phone.

How many characters can a LinkedIn post have?

Up to 3,000 characters. Only the first lines appear before the "more" link, so lead with your hook. To make a few words stand out without an image, use our bold text generator, and check your length with the character counter. Every network's limits are in our social media character limits guide.

Sizes for scheduled LinkedIn posts

Scheduling tools publish through LinkedIn's API, with the same limits. In Wavnil, you can publish to a personal profile or a company Page with images, a video or a PDF document, and Wavnil can turn two or more images into a swipeable document carousel for you. Our step-by-step guide explains how to schedule LinkedIn posts, natively or with a tool, and the best time to post on LinkedIn shows which slots to pick.

Your LinkedIn post size checklist

Use 1200 × 627 or 1080 × 1080 for images, 1080p MP4 files under 10 minutes for video, and 1080 × 1080 or 1080 × 1350 pages for document carousels, all in the same size. Keep posts under 3,000 characters with the hook first. Try Wavnil free for 7 days to plan your LinkedIn posts a month ahead.

Sources

Checked on September 29, 2026:

• LinkedIn Help, Image specifications for your LinkedIn Pages and Career Pages.
• LinkedIn Help, Video specifications for your LinkedIn Pages and Career Pages.
• LinkedIn Help, Upload and share documents on LinkedIn.