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1080×1080
shown at 20%
Feed Image - Square (1:1)
Square
- Size (px)
- Ratio
- 1:1
Telegram Ads — AdsGram In-App Post Banner
Square · Messaging · Verified 2026-06
Live preview
800×800
shown at 58%
In context
Sample feed post
Full specification
Size (px)
Ratio1:1
Max weight1 MB
FormatsJPG, PNG
Text limits
Title
32 chars
Body
160 chars
Company name
40 chars
Notes & best practice
Telegram Mini App post banner via AdsGram.
Image must be 1:1, optimal 800x800 (range 240 to 1024 px), up to 1 MB.
Optional GIF must be 1:1, range 240 to 600 px, up to 2 MB.
Avatar is optimal 100x100 (range 32 to 1024 px), up to 100 KB.
Forbidden characters are <, >, &, and double quotes.
Frequently asked questions
What size is the Telegram Ads AdsGram In-App Post Banner?
The Telegram Ads AdsGram In-App Post Banner is 800×800 px, aspect ratio 1:1.
What is the aspect ratio of the Telegram Ads AdsGram In-App Post Banner?
1:1. At the recommended resolution that is 800×800 px.
What is the maximum file size for the Telegram Ads AdsGram In-App Post Banner?
Up to 1 MB, in JPG, PNG.
What file formats does Telegram Ads accept for the AdsGram In-App Post Banner?
JPG, PNG.
Why does Telegram Ads crop my AdsGram In-App Post Banner?
Telegram Ads shows AdsGram In-App Post Banner at 1:1. Upload exactly 800×800 px and keep key content in the safe area so nothing gets cut off.
Is 800×800 still correct for the Telegram Ads AdsGram In-App Post Banner in 2026?
Yes. Last verified 2026-06 against the official Telegram Ads documentation.
Check your creative
Test a file against this exact spec before you upload it anywhere.
Nothing is uploaded or saved — the check runs entirely in your browser.