To upload a logo, click the Menu icon and select “Manage Channel.” In a new window, hit the Camera icon. 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. To view your bio, click the Menu icon and select “View channel info.” ZDNET RECOMMENDS Done! Now you’re the proud owner of a Telegram channel. The next step is to set up and customize your channel.
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