The optimal dimension of the avatar on Telegram is 512px by 512px, and it’s recommended to use PNG format to deliver an unpixelated avatar. ‘Ban’ on Telegram 5Telegram Channel avatar size/dimensions Select: Settings – Manage Channel – Administrators – Add administrator. From your list of subscribers, select the correct user. A new window will appear on the screen. Check the rights you’re willing to give to your administrator. Telegram iOS app: In the “Chats” tab, click the new message icon in the right upper corner. Select “New Channel.”
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