LinkedIn Post Size and Specs (2026)
Every LinkedIn limit below comes from the rules PostQuest uses to check posts before they publish. Publishing limits were last verified on .
- Main post size
- Up to 8 MB
- Photo Post
- Caption limit
- 3,000 characters
- Video aspect ratio
- 9:16 to 16:9
- Video Post
- Profile background (banner)
- 1584 × 396 px (4:1)
LinkedIn image and video specs
Text Post and Link Post use only the caption limit, so they have no media table.
Photo Post1 file
| Spec | Image |
|---|---|
| File size | Up to 8 MB |
| Formats | JPEG, PNG |
| Other limits | Up to 250 frames |
Multi-Image Post2–20 files
| Spec | Image |
|---|---|
| File size | Up to 8 MB |
| Formats | JPEG, PNG |
| Other limits | Up to 250 frames |
Video Post1 file
| Spec | Video |
|---|---|
| Aspect ratio | 9:16 to 16:9 |
| File size | 75 KB–500 MB |
| Length | 3 s–30 min |
| Formats | MP4 |
Document Post1 file
| Spec | Document |
|---|---|
| File size | Up to 100 MB |
| Formats | PDF, DOC, DOCX, PPT, PPTX |
| Other limits | Up to 300 pages |
- Document posts require a title.
LinkedIn caption and hashtag limits
Caption limit
3,000 characters
- Applies to the post commentary on shares and articles alike.
Hashtags
No hard limit
Recommended: 3–5 hashtags
- No official hashtag-count limit for regular posts.
- LinkedIn recommends 3–5 hashtags per post.
Accounts that can publish
Authenticated members and eligible organization Pages.
LinkedIn profile and banner sizes
| Image | Size | Details | Source |
|---|---|---|---|
| Profile background (banner) | 1584 × 396 px (4:1) | JPG or PNG, under 8 MB. | LinkedIn Help: Profile background photoVerified October 4, 2026 |
| Company Page cover | 1512 × 256 px | PNG or JPEG, up to 3 MB. | LinkedIn Help: Image specifications for PagesVerified October 4, 2026 |
| Company Page logo | 400 × 400 px | Minimum 268 × 268 px. PNG or JPEG, up to 3 MB. | LinkedIn Help: Image specifications for PagesVerified October 4, 2026 |
| Profile photo | 400 × 400 px minimum | Up to 7680 × 4320 px. PNG or JPG, up to 8 MB. | LinkedIn Help: Photo won’t upload to your profileVerified October 4, 2026 |
LinkedIn specs FAQ
What size should a LinkedIn post be?
A LinkedIn photo post must meet these limits: file size up to 8 MB. No fixed pixel dimensions apply to this format. For a video post, the aspect ratio is 9:16 to 16:9.
What is the LinkedIn character limit?
LinkedIn captions can be up to 3,000 characters long. Applies to the post commentary on shares and articles alike.
How many hashtags can you use on LinkedIn?
LinkedIn has no hard hashtag limit. Aim for 3–5. LinkedIn recommends 3–5 hashtags per post.
What size is the LinkedIn profile background (banner)?
1584 × 396 px (4:1). JPG or PNG, under 8 MB.
Sources
Publishing limits last verified against official API documentation. Profile sizes last verified .
More platform specs
Schedule posts that pass these checks
PostQuest validates every caption and file against these limits before a post is scheduled, so nothing fails at publish time.