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. Image: Telegram. 3How to create a Telegram channel? But a Telegram statement also said: "Any requests related to political censorship or limiting human rights such as the rights to free speech or assembly are not and will not be considered." To view your bio, click the Menu icon and select “View channel info.”
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