SocialRobot· Updated 2026
LinkedIn image & video sizes (Updated 2026)
LinkedIn enforces file-size and pixel budgets on images. Oversized uploads fail; SocialRobot scales toward a 2048px long edge and respects the pixel cap.
All LinkedIn sizes at a glance
Updated 2026
| Content type | Dimensions | Aspect ratio | Max file size | Formats |
|---|---|---|---|---|
| Post image | Long edge up to 2048 | Flexible | 5 MB | JPEG, PNG, GIF |
| Video | Flexible | Flexible | 200 MB | MP4 |
| Document | n/a | n/a | 100 MB | PDF, PPT, PPTX, DOC, DOCX |
LinkedIn content specifications
Post image
- Dimensions
- Long edge up to 2048
- Aspect ratio
- Flexible
- Max size
- 5 MB
- Formats
- JPEG, PNG, GIF
- Length / count
- Up to 20 images
Video
- Dimensions
- Flexible
- Aspect ratio
- Flexible
- Max size
- 200 MB
- Formats
- MP4
- Length / count
- 3–600 seconds (10 min)
Document
- Dimensions
- n/a
- Aspect ratio
- n/a
- Max size
- 100 MB
- Formats
- PDF, PPT, PPTX, DOC, DOCX
- Length / count
- Up to 300 pages
Best practices
- Keep each image under 5 MB.
- Use MP4 for video under 10 minutes.
- Documents work well for carousels of slides as PDF.
Common mistakes
- Huge multi-megapixel images that exceed LinkedIn’s pixel budget.
- Attaching both a poll and media when the API expects one content type.
- Video files over 200 MB.
Sizes for other platforms
Publish to LinkedIn at the right size
SocialRobot crops and compresses at publish. Upload once, tweak the crop if you want, and schedule across your channels.
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