LinkedIn ad sizes & specs (2026)

LinkedIn single image ads use 1.91:1 at 1200 × 628 px or 1:1 at 1200 × 1200 px, plus vertical 4:5 (720 × 900 px) on mobile; files are JPG, PNG or GIF up to 5 MB. Video ads are MP4, 3 seconds to 30 minutes and up to 500 MB, in 16:9, 1:1, 4:5 or 9:16. Keep introductory text under 150 characters and headlines under 70 to avoid truncation.

Checked against LinkedIn's own specs on 2026-10-20. Sources at the bottom.

LinkedIn ad specs at a glance

Single image (landscape)

1.91:1 · 1200 × 628

Minimum:: 640 × 360
Files:: JPG, PNG, GIF, up to 5 MB
Text:: Intro text: 150 characters before truncation (max 3,000); headline: 70 (max 200); description: 100 (max 300)

Single image (square)

1:1 · 1200 × 1200

Minimum:: 360 × 360
Files:: JPG, PNG, GIF, up to 5 MB
Text:: Intro text: 150 characters before truncation; headline: 70

Single image (vertical)

4:5 · 720 × 900

Minimum:: 360 × 640
Files:: JPG, PNG, GIF, up to 5 MB
Text:: Intro text: 150 characters before truncation; headline: 70

Video (landscape or square)

16:9 · 1920 × 1080 (max)

Minimum:: 640 × 360
Files:: MP4, up to 500 MB (min 75 KB)
Length:: 3 s – 30 min
Text:: Intro text: 150 recommended (600 max); headline: 70 recommended (200 max)

Video (vertical)

9:16 · 1080 × 1920 (max)

Minimum:: 360 × 640
Files:: MP4, up to 500 MB
Length:: 3 s – 30 min
Text:: Intro text: 150 recommended (600 max); headline: 70 recommended (200 max)

Carousel

1:1 · 1080 × 1080 or larger

Files:: JPG, PNG, up to 10 MB per image
Text:: Intro text: 255 characters; card headline: 45

Placement	Ratio	Recommended	Files	Text & length
Single image (landscape)	1.91:1	1200 × 628min 640 × 360	JPG, PNG, GIFup to 5 MB	Intro text: 150 characters before truncation (max 3,000); headline: 70 (max 200); description: 100 (max 300)Shows on desktop and mobile.
Single image (square)	1:1	1200 × 1200min 360 × 360	JPG, PNG, GIFup to 5 MB	Intro text: 150 characters before truncation; headline: 70Shows on desktop and mobile.
Single image (vertical)	4:5	720 × 900min 360 × 640	JPG, PNG, GIFup to 5 MB	Intro text: 150 characters before truncation; headline: 70Mobile only. LinkedIn also accepts 2:3 (600 × 900) and 1:1.91 (628 × 1200) but recommends 4:5 to avoid borders.
Video (landscape or square)	16:9	1920 × 1080 (max)min 640 × 360	MP4up to 500 MB (min 75 KB)	Intro text: 150 recommended (600 max); headline: 70 recommended (200 max)3 s – 30 min1:1 square: 360 × 360 to 1920 × 1920. 30 fps recommended, AAC or MPEG4 audio. Aspect ratio tolerance 5%.
Video (vertical)	9:16	1080 × 1920 (max)min 360 × 640	MP4up to 500 MB	Intro text: 150 recommended (600 max); headline: 70 recommended (200 max)3 s – 30 min4:5 is also supported: 360 × 450 to 1080 × 1350. Captions optional.
Carousel	1:1	1080 × 1080 or larger	JPG, PNGup to 10 MB per image	Intro text: 255 characters; card headline: 452 to 10 cards. Video cards are not supported.

Tips for LinkedIn ad creative

Use 1:1 (1200 × 1200) as the default: it serves on desktop and mobile, while vertical 4:5 images serve on mobile only.
Front-load the introductory text. LinkedIn allows up to 3,000 characters, but recommends 150 to avoid truncation.
Keep headlines within 70 characters (LinkedIn's best-practice page suggests under 60) so they do not get cut off.
For video, export at 30 fps and keep the file under 500 MB; vertical 9:16 and 4:5 are supported up to 1080 px wide.
Carousel cards are image-only at 1:1 (1080 × 1080) with 45-character card headlines, so put one idea per card.

Resize an image to these sizes

LinkedIn ad size questions

What size are LinkedIn image ads?

1200 × 628 px (1.91:1) or 1200 × 1200 px (1:1) for desktop and mobile, and 720 × 900 px (4:5) for mobile-only vertical ads. JPG, PNG or GIF up to 5 MB.

How long can LinkedIn video ads be?

3 seconds to 30 minutes, MP4 only, from 75 KB up to 500 MB.

What are the LinkedIn ad character limits?

Introductory text: 150 characters to avoid truncation (3,000 max). Headline: 70 to avoid truncation (200 max). Description: 100 to avoid truncation (300 max). Carousel card headlines: 45.

What are LinkedIn document ad specs?

PDF, DOCX or PPTX files up to 100 MB and 300 pages.

Sources (checked 2026-10-20)

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