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. 2How to set up a Telegram channel? (A step-by-step tutorial) To upload a logo, click the Menu icon and select “Manage Channel.” In a new window, hit the Camera icon. Image: Telegram. Done! Now you’re the proud owner of a Telegram channel. The next step is to set up and customize your channel.
from us