Add the logo from your device. Adjust the visible area of your image. Congratulations! Now your Telegram channel has a face Click “Save”.! 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. How to build a private or public channel on Telegram? Click “Save” ; Telegram iOS app: In the “Chats” tab, click the new message icon in the right upper corner. Select “New Channel.”
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