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- Telegram News
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How to create a business channel on Telegram? (Tutorial) 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. 5Telegram Channel avatar size/dimensions Channel login must contain 5-32 characters To upload a logo, click the Menu icon and select “Manage Channel.” In a new window, hit the Camera icon.
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