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Telegram News
Informative 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 Telegram iOS app: In the “Chats” tab, click the new message icon in the right upper corner. Select “New Channel.” To delete a channel with over 1,000 subscribers, you need to contact user support
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