LinkedIn · 6 formats

LinkedIn ad sizes and specs

Single image ads run 1200x628, 1200x1200 or 720x900. Video runs 16:9, 1:1, 4:5 or 9:16 for 3 seconds to 30 minutes. Intro text truncates at 150 characters.

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Linear ad1:1
Linear
Perplexity ad16:9
Perplexity

Every LinkedIn ad format and size

From LinkedIn's Marketing Solutions help center. Recommended size first; the cards below carry the minimums, file limits and text limits.

LinkedIn ad sizes: size and ratio by format
FormatRecommended sizeRatiosMax file
Single image1200x12001.91:1, 1:1, 4:55MB
Video1920x108016:9, 1:1, 4:5, 9:1675KB to 500MB
Carousel1080x10801:110MB per card
DocumentPDF, DOC, DOCX, PPT or PPTXPage shape of the file100MB, 300 pages
Conversation300x250300x250 banner, optional-
Text ad100x1001:12MB

Single image

1200x1200

LinkedIn feed · LinkedIn Audience Network

Ratios
1.91:1, 1:1, 4:5
Minimum
640x360 landscape, 360x360 square, 360x640 vertical
Files
JPG, PNG, GIF
Max file
5MB
Introductory text
150 recommended, 3,000 max
Headline
70 recommended, 200 max
Description
100 recommended, 300 max

1200x628 for landscape, 1200x1200 for square, 720x900 for vertical. Vertical shows on mobile only.

Video

1920x1080

LinkedIn feed

Ratios
16:9, 1:1, 4:5, 9:16
Minimum
640x360 landscape, 360x360 square, 360x450 4:5, 360x640 vertical
Files
MP4
Max file
75KB to 500MB
Length
3 seconds to 30 minutes (15 to 30 seconds recommended)
Introductory text
150 recommended, 3,000 max
Headline
70 recommended, 200 max

H.264 or VP8 under 30 frames per second, AAC or MPEG4 audio. Captions upload as an SRT file. Custom thumbnail up to 2MB.

Document

PDF, DOC, DOCX, PPT or PPTX

LinkedIn feed

Ratios
Page shape of the file
Files
PDF, DOC, DOCX, PPT, PPTX
Max file
100MB, 300 pages
Introductory text
150 recommended, 600 max
Headline
70 recommended, 200 max

Lead gen document ads take PDF only. Embedded video and animation show as still pages.

Conversation

300x250

LinkedIn messaging

Ratios
300x250 banner, optional
Files
JPG, PNG
Intro message
8,000 characters
Button
25 characters, up to 5 per message

The banner shows on desktop only. The intro message must include a "Not interested" option.

Text ad

100x100

Desktop right rail and top banner

Ratios
1:1
Files
JPG, PNG
Max file
2MB
Headline
25 characters
Description
75 characters

A small square logo or image beside two lines of text. Desktop only.

What real LinkedIn ads are shaped like

38.5% of LinkedIn ads in the Sprites ads library run at 1:1. By format the mix is 62.4% image, 31.1% video, 4.8% document, 1.7% carousel.

LinkedIn ads library
  • 38.5%1:1
  • 26.5%16:9
  • 17.3%4:5
  • 7.3%9:16
  • 3.2%1.91:1
  • 0.6%3:4
  • Image 62.4%
  • Video 31.1%
  • Document 4.8%
  • Carousel 1.7%
FormatShare of adsMost common ratioRunner-up
Image62.4%1:1 · 48.1%4:5 · 27%
Video31.1%16:9 · 45.9%1:1 · 27.5%
Carousel1.7%1:1 · 76.9%4:5 · 20.5%

How to size ads for LinkedIn

Square is the default on LinkedIn, and the one to make first. It is the only shape a carousel takes, it runs in the feed on desktop and mobile, and it is what most LinkedIn advertisers ship.

LinkedIn publishes no safe zone. The feed crops nothing and overlays nothing on the creative, so the constraint is the text above it: 150 characters of intro before "see more". Put the claim there, not in the image.

Video and carousel each have their own page: LinkedIn video ad specs and LinkedIn carousel ad specs. For what B2B advertisers actually run, see the LinkedIn ads library.

Make LinkedIn ads in every size

Ask Sprites for LinkedIn image ads and it builds one creative, then recomposes it to each size below in the same run. No cropping by hand, no second brief.

How ad generation works
1200x1200720x9001200x628
  • LinkedIn Single Image (Landscape 1.91:1)
  • LinkedIn Single Image (Square 1:1)
  • LinkedIn Single Image (Vertical 4:5)

Keep going

LinkedIn ad sizes: questions

What size should a LinkedIn image ad be?

1200x1200 for square, 1200x628 for landscape and 720x900 for vertical, which runs on mobile only. Maximum file size is 5MB.

What are the LinkedIn ad character limits?

Introductory text: 150 characters before truncation, 3,000 max. Headline: 70 recommended, 200 max. Description: 100 recommended, 300 max.

Does LinkedIn have a safe zone?

No. LinkedIn draws nothing over a single image or video in the feed. Carousel cards show at 312x312, so text on them has to read small.

How long can a LinkedIn video ad be?

3 seconds to 30 minutes. LinkedIn recommends 15 to 30 seconds.

Every size, from one prompt

Sprites builds image ads in every placement size for Meta, Google, LinkedIn, Reddit and TikTok from one prompt.