English 
Русский 
Español 
Deutsch 
Français 
Українська 
Português (Brasil) 
Bahasa Indonesia 
Türkçe LinkedIn vs Reddit Ads image sizes 2026
One file works on both for 0 formats, one layout with two exports for 1, and 3 need their own layout. 4 of 12 layouts below serve both platforms.
Check one creative against LinkedIn and Reddit Ads
Nothing is uploaded or saved — the check runs entirely in your browser.
Format by format
The main size of each format on both platforms, and whether one file covers both.
| Placement | Reddit Ads | For both | |
|---|---|---|---|
| Square | One layout, two exports | ||
| Vertical / Portrait | Different layouts | ||
| Landscape | Different layouts | ||
| Carousel | Different layouts | ||
| Profile picture | — | Only on LinkedIn | |
| Cover / Header | — | Only on LinkedIn | |
| Display banner | — | Only on LinkedIn |
One creative set for both
Layouts: 12 · used on both platforms: 4
-
Master size Export sizes Max weight2 MBLinkedIn FormatsJPGPNG
LinkedIn Single Image Ad - Square 1200×1200·Carousel Ad Card 1080×1080·Conversation Ad Image (in-message) 250×250·Text Ad (desktop right rail) 100×100
Reddit Ads Image Ad / Promoted Post - Square (1:1) 1080×1080·Free-form Ad (Rich Text Post) 1200×1200
-
Master size Export sizes Max weight3 MBReddit Ads FormatsJPGPNG
LinkedIn Single Image Ad - Vertical 720×900
Reddit Ads Image Ad / Promoted Post - Portrait (4:5) 1080×1350·Carousel Ad Card 1200×1500·Interactive Ad (Quiz, Poll, Countdown) 816×1024
-
Master size Export sizes Max weight3 MB FormatsJPGPNG
LinkedIn Event Ad 1280×720
Reddit Ads Image Ad / Promoted Post - Landscape (16:9) 1920×1080
-
Master size Export sizes Max weight500 MBLinkedIn FormatsMP4
LinkedIn Video Ad - Square (1:1) 1080×1080
Reddit Ads Video Ad (Promoted Video) 1200×1200
-
Master size Max weight2 MB FormatsJPGPNG
LinkedIn Message Ad Banner (desktop)·Conversation Ad Banner (desktop)
-
Master size Export sizes Max weight3 MB FormatsJPGPNGGIF
Reddit Ads Image Ad / Promoted Post - Landscape (4:3) 1440×1080·Image/Video Ad Thumbnail (classic-mode) 400×300
-
Master size Max weight8 MB FormatsJPGPNG
LinkedIn Personal Profile Background Banner
-
Master size Max weight3 MB FormatsPNGJPG
LinkedIn Company Page Cover Image
-
Master size Max weight5 MB FormatsJPGPNGGIF
LinkedIn Single Image Ad - Landscape
-
Master size Max weight3 MB FormatsJPGPNGGIF
Reddit Ads Image Ad / Promoted Post - Portrait (3:4)
-
Master size Max weight500 MB FormatsMP4
LinkedIn Video Ad - Landscape (16:9)
-
Master size Max weight500 MB FormatsMP4
LinkedIn Video Ad - Vertical (9:16)
Text limits
Every value each platform uses for the field, characters unless noted
| Field | Reddit Ads | |
|---|---|---|
| Headline | 25 · 45 · 50 · 70 · 200 | 300 |
| Body | 1500 | 40000 |
| Primary text | 150 · 255 · 600 · 3000 | — |
| Description | 70 · 75 · 100 · 300 | — |
| CTA | 18 · 20 · 25 | — |
| Link/URL | 2000 | — |
| Footer | 20000 | — |
| Message | 8000 | — |
| Company name | 25 | — |
| Caption | — | 50 |
Video side by side
- Video Ad - Landscape (16:9) 1920×1080 · 16:9 · Max duration: 30 minutes (recommended 15-30 sec) · 500 MB
- Video Ad - Square (1:1) 1080×1080 · 1:1 · Max duration: 30 minutes (recommended 15-30 sec) · 500 MB
- Video Ad - Vertical (9:16) 720×1280 · 9:16 · Max duration: 30 minutes (recommended 15-30 sec) · 500 MB
Reddit Ads
- Video Ad (Promoted Video) 1200×1200 · 1:1 (also 4:5, 4:3, 16:9 supported) · Max duration: Up to 15 minutes (5-30 seconds recommended; minimum 2 seconds) · 1 GB