4How to customize a Telegram channel? Add the logo from your device. Adjust the visible area of your image. Congratulations! Now your Telegram channel has a face Click “Save”.! End-to-end encryption is an important feature in messaging, as it's the first step in protecting users from surveillance. Administrators 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.
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