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. Invite up to 200 users from your contacts to join your channel Write your hashtags in the language of your target audience. best-secure-messaging-apps-shutterstock-1892950018.jpg To edit your name or bio, click the Menu icon and select “Manage Channel.”
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