Image Specs
Post Image
| Dimensions | 1200 × 627 px |
|---|---|
| Aspect Ratio | 1.91:1 |
| Max File Size | 5 MB |
| File Formats | JPG, PNG, GIF, WEBP, HEIC |
| Notes | Recommended for link shares and updates; HEIC/HEIF accepted from iOS only |
Article Cover
| Dimensions | 1920 × 1080 px |
|---|---|
| Aspect Ratio | 16:9 |
| Max File Size | 5 MB |
| File Formats | JPG, PNG |
| Notes | Updated from the older 744×400 px layout used before LinkedIn's article redesign |
Portrait Post
| Dimensions | 1080 × 1350 px |
|---|---|
| Aspect Ratio | 4:5 |
| Max File Size | 5 MB |
| File Formats | JPG, PNG, GIF, WEBP, HEIC |
| Notes | Fully supported and not cropped in feed; takes up the most vertical space on mobile |
Company Logo
| Dimensions | 400 × 400 px recommended (268 × 268 px minimum) |
|---|---|
| Max File Size | 3 MB |
| File Formats | JPG, PNG |
| Notes | Square format required |
Company Cover / Banner
| Dimensions | 1512 × 256 px |
|---|---|
| Max File Size | 3 MB |
| File Formats | JPG, PNG |
| Notes | Updated from an older 4200×700 px figure — LinkedIn's current Help Center page states 1512×256 px as both minimum and recommended |
[Ad]
Video Specs
Post Video
| Max File Size | 5 GB |
|---|---|
| File Formats | MP4, MOV, AVI, WEBM, MKV, WMV, MPEG |
| Resolution | 1920 × 1080 px recommended |
| Max Duration | 3 seconds (desktop) / 2 seconds (mobile app) minimum; 15 minutes maximum |
| Notes | H.264, AAC audio; aspect ratios 1:2.4 to 2.4:1 supported; resolution 256×144 to 4096×2304 px; 10–60 fps; minimum file size 75 KB |
Text & Character Limits
Post
| Character Limit | 3,000 characters |
|---|
Article Body
| Character Limit | 125,000 characters |
|---|
Article Title
| Character Limit | 100 characters |
|---|
Profile Headline
| Character Limit | 220 characters |
|---|
Profile Summary / About
| Character Limit | 2,600 characters |
|---|
Comment
| Character Limit | 1,250 characters |
|---|
Direct Message
| Character Limit | 8,000 characters |
|---|---|
| Notes | Raised from an earlier 3,000-character limit |
Profile & Cover Assets
Profile Photo
| Dimensions | 400 × 400 px recommended |
|---|---|
| Max File Size | 8 MB |
| File Formats | JPG, PNG |
| Notes | Between 400 × 400 px and 7680 × 4320 px; displayed as a circle |
Background / Banner
| Dimensions | 1584 × 396 px |
|---|---|
| Max File Size | 8 MB |
| File Formats | JPG, PNG |
Company Logo
| Dimensions | 400 × 400 px recommended (268 × 268 px minimum) |
|---|---|
| Max File Size | 3 MB |
| File Formats | JPG, PNG |
Company Banner
| Dimensions | 1512 × 256 px |
|---|---|
| Max File Size | 3 MB |
| File Formats | JPG, PNG |
Ad Specs
Single Image Ad
| Dimensions | 1200 × 628 px (640×360 – 7680×4320 px range, 1.91:1) |
|---|---|
| Max File Size | 5 MB |
| File Formats | JPG, PNG, GIF |
| Notes | Also supports 1:1 at 1200 × 1200 px (360×360 – 4320×4320 px range) and 4:5 vertical at 720 × 900 px recommended; animated GIFs must be 250 frames or fewer |
Carousel Ad
| Dimensions | 1080 × 1080 px per card |
|---|---|
| Notes | 2–10 cards per carousel; square format required; max 10 MB total for the entire ad (not per card) |
Video Ad
| Max File Size | 75 KB – 500 MB |
|---|---|
| File Formats | MP4 |
| Resolution | 1920 × 1080 px (16:9), 1080 × 1080 px (1:1), 1080 × 1350 px (4:5), or 1080 × 1920 px (9:16) |
| Max Duration | 3 seconds – 30 minutes |
Ad Headline
| Character Limit | 70 characters |
|---|---|
| Notes | 200-character hard maximum before truncation |
Ad Intro Text
| Character Limit | 150 characters |
|---|
Ad Description
| Character Limit | 100 characters |
|---|---|
| Notes | Keep to 100 characters to avoid truncation; 300-character maximum. Shown mainly on LinkedIn Audience Network (LAN) placements, where the displayed length may vary |