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. End-to-end encryption is an important feature in messaging, as it's the first step in protecting users from surveillance. 3How to create 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”.! Some Telegram Channels content management tips
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