Standard LinkedIn carousel: 1080x1080px (1:1). For more feed space: 1080x1350px (4:5). Upload as PDF. Max file size: 300MB, max 300 pages. Recommended export: 150 DPI, under 10MB total.
The Standard LinkedIn Carousel Dimensions
LinkedIn carousels are uploaded as PDF documents. Each page of the PDF becomes one slide. The platform supports multiple aspect ratios, but two formats dominate in practice.
The 1:1 square format at 1080x1080px is the default for most carousel creators. It displays consistently across desktop and mobile, fits neatly in the feed, and is the safest choice if you are unsure which format to use.
The 4:5 portrait format at 1080x1350px takes up more vertical space in the LinkedIn feed — roughly 33% more screen real estate than a square post. More screen space means more visibility before a viewer scrolls past. Many creators see higher engagement on 4:5 carousels for this reason alone.
Format Comparison: All Supported LinkedIn Carousel Dimensions
| Format | Dimensions | Aspect Ratio | Max File Size | Notes |
|---|---|---|---|---|
| Square | 1080 x 1080px | 1:1 | 300MB | Default, works everywhere |
| Portrait | 1080 x 1350px | 4:5 | 300MB | Recommended — more feed space |
| Landscape | 1920 x 1080px | 16:9 | 300MB | Less common, smaller in feed |
| Story / Vertical | 1080 x 1920px | 9:16 | 300MB | Not ideal for LinkedIn feed |
Landscape (16:9) carousels appear smaller in the LinkedIn feed because the platform letterboxes them. You lose the visual impact that makes carousels worth creating. Stick to square or portrait.
LinkedIn Document Post Dimensions
LinkedIn carousels are technically "document posts" — you upload a PDF and LinkedIn renders each page as a swipeable slide. There is no native image carousel format on LinkedIn the way there is on Instagram.
This matters for dimensions because your design software exports at a specific page size. Set your document to:
- 1080x1080px at 72 DPI for screen-optimised square exports
- 1080x1350px at 72 DPI for portrait exports
- Any size at 150-300 DPI if you want print-quality sharpness (increases file size)
When you design at 1080px wide, LinkedIn displays your slides at roughly 540px wide on desktop and 375px wide on mobile. Plan your font sizes accordingly — anything below 32px on a 1080px canvas becomes hard to read on a phone screen.
Design at the exact export dimensions (1080x1080 or 1080x1350) — never scale up from a smaller canvas. Upscaling blurs text and reduces perceived quality even if LinkedIn doesn't reject the file.
File Size and Format Limits
LinkedIn accepts PDF uploads up to 300MB with a maximum of 300 pages. In practice, you will rarely hit either limit — a well-optimised 10-slide carousel should be well under 5MB.
Keep these targets in mind when exporting:
- Under 10MB total for fast loading on mobile connections
- Under 1MB per slide as a general guideline
- PDF format only for multi-slide carousels (LinkedIn does not support multi-image native uploads the way Instagram does)
- PNG or JPEG if you are sharing a single image instead of a carousel
If your PDF exceeds 10MB, compress it before uploading. Large files load slowly on mobile and LinkedIn may reduce image quality during processing.
Resolution and Export Quality
DPI (dots per inch) matters more for print than screen, but it affects perceived sharpness in PDF exports. Here is what to use:
- 72 DPI — minimum for screen viewing, smallest file size, sufficient for most carousels
- 150 DPI — noticeably sharper text, good balance of quality and file size
- 300 DPI — maximum quality, larger files, only necessary if your carousel contains fine detail or small text
If you are exporting PNG slides and assembling them into a PDF, export each PNG at 1080px wide (or 1350px for portrait). Do not export at 2x or 3x resolution then resize down — LinkedIn's PDF renderer does not benefit from it and the file size increases significantly.
Common Dimension Mistakes
These errors show up repeatedly in carousels that look off in the feed:
- Designing at the wrong aspect ratio — a 16:9 canvas uploaded as a LinkedIn carousel will be letterboxed with white or black bars. Always design at 1:1 or 4:5.
- Inconsistent slide sizes — all slides must be the same dimensions. Mixed page sizes in a PDF cause LinkedIn to resize slides unevenly.
- Placing text too close to edges — keep all text and important elements at least 80px from the edge on a 1080px canvas. LinkedIn can crop slightly on some devices.
- Upscaling a small canvas — designing at 540px and exporting at 1080px does not give you 1080px quality. It gives you a blurry 540px design at twice the file size.
For a full breakdown of how carousel size affects performance, see our guide on LinkedIn carousel size. To see these dimensions in action across real examples, check out best LinkedIn carousel examples. If you want the dimensions handled automatically, Carouselli's LinkedIn carousel maker exports at the correct resolution for every format.
Get the Dimensions Right Automatically
Carouselli exports your carousel at the correct pixel dimensions for LinkedIn — 1:1 or 4:5 — with no manual setup required.
Try Carouselli FreeFrequently Asked Questions
What size should a LinkedIn carousel be?
1080x1080px (1:1 square) is the standard. For more feed visibility, use 1080x1350px (4:5 portrait) — it occupies more vertical space and often drives higher engagement. Both formats are uploaded as PDFs.
What is the max file size for a LinkedIn carousel?
LinkedIn allows PDFs up to 300MB with up to 300 pages. Keep your carousel under 10MB in practice for fast loading. A 10-slide carousel at 1080x1080px should comfortably come in under 5MB when exported at 72-150 DPI.
Can I use different dimensions for each slide?
No. All slides must share the same dimensions. LinkedIn renders your PDF as a consistent document — mixed page sizes cause display issues. Set your canvas size once and apply it to every slide in the project.
What resolution should I export my carousel?
72 DPI is sufficient for most carousels viewed on screen. Use 150 DPI if you want noticeably sharper text. 300 DPI increases file size significantly with minimal visible benefit for standard carousel content.