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 Invite up to 200 users from your contacts to join your channel How to create a business channel on Telegram? (Tutorial) The public channel had more than 109,000 subscribers, Judge Hui said. Ng had the power to remove or amend the messages in the channel, but he “allowed them to exist.”
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