Owners of public groups can enable join requests via Group Info > Edit > Group Type > Who Can Send Messages > select Only Members > enable Approve New Members. Customizations Sent a picture without adding your usual filter or marking the text you wanted to highlight? Sent the wrong picture altogether? Telegram can help you out. The app allows users to edit photos and even replace them after you have sent it.
To create your own theme, tap the three-dot button (Android) or go to Chat Themes (iOS) and choose Create new theme. Here, you can create your own look if you don't like any of the default options. Stop Being Added to Random Groups While you can send uncompressed media in other messaging apps, you have to convert it in another format like EXE or PDF. Telegram, however, allows you to send uncompressed video and images directly (without converting them into another format). It saves you a lot of trouble. You don’t need a separate image/video editor to make your photos/videos more compelling. You can do it right in the telegram app using its intuitive interface.
Improved Chat Previews on Android Custom themes While you can receive/send files irrespective of their type and size, you can disable automatic media download and auto-play media to save mobile data. This way, you can also avoid downloading unnecessarily large files. Telegram Cloud
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