How to Optimize Images for LinkedIn Posts

LinkedIn images are critical real estate: the profile banner is the first thing visitors see, and post images drive engagement. LinkedIn also compresses everything you upload, sometimes badly. Pre-process your images so what readers see is what you intended.

LinkedIn image specifications (2026)

Profile photo

• Recommended: 400×400
• Maximum: 8 MB

Background / banner photo

• Recommended: 1584×396
• Aspect ratio: 4:1
• Maximum file size: 8 MB

Company page logo

• Square: 300×300
• Cover: 1128×191

Post image (single)

• Recommended: 1200×627 (landscape) or 1200×1200 (square)
• 1080×1350 portrait works but gets cropped on desktop feed

Article / newsletter cover

• Recommended: 1280×720 (or 1200×627, close enough)
• Maximum file size: 5 MB

Carousel slide

• Recommended: 1080×1080 (square)
• Maximum slides per post: 10

The compression problem

LinkedIn auto-compresses every uploaded image at upload time, regardless of source quality. The compression is aggressive, often quality 60-70 for non-Premium accounts.

Two strategies:

Strategy A: Pre-compress harder

Upload a smaller file. LinkedIn re-compresses, but starts from your already-optimised version. Net result: same final file size, but you control the quality.

Strategy B: Upload at exact target dimensions

LinkedIn's resampling is more aggressive when dimensions don't match its targets. Upload at the exact recommended size and resampling is minimal.

Combine both: use LinkedIn Banner Resizer (or Social Media Image Resizer) to get to the exact dimensions, then Image Compressor at quality 85.

Banner image best practices

The LinkedIn profile banner is 1584×396, a 4:1 aspect ratio that crops most landscape photos terribly. Tips:

1. Use a designed banner, not a cropped photo. Wide aspect ratios need composition that works at that ratio.
2. Leave room for the profile photo overlay: the photo overlaps the bottom-left of the banner. Don't put text or focal subject there.
3. Test on mobile: LinkedIn shows banners at 1:1 on phones (effectively 396×396 of the centre). Make sure the centre crop still works.
4. Quality 90 is fine for upload. LinkedIn will compress, but starting high gives you the best final result.

Post image best practices

For maximum reach and engagement:

• Use 1200×627 landscape for sharing content with text overlay or graphs.
• Use 1080×1080 square for personal posts and quotes, fills more vertical space on mobile feed.
• Don't use stock images that look like stock. LinkedIn's algorithm seems to de-prioritize generic photography.
• Faces work. Photos with faces consistently outperform faceless photos in engagement.

Newsletter cover image

LinkedIn Newsletters need a cover image that works at:

• 1280×720 desktop hero
• 600×600 mobile / thumbnail crop

Design with both crops in mind. A central composition works for both.

Workflow

1. Resize / crop to target dimensions using LinkedIn Banner Resizer (for banners) or Social Media Image Resizer (for any other LinkedIn placement).
2. Compress at quality 85 using Image Compressor.
3. Upload to LinkedIn.

All conversion and compression runs client-side. Your creative never uploads anywhere except LinkedIn itself.

Related

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