For WhatsApp:
Download and install a sticker maker app from the Play Store or App Store (e.g., "Sticker Maker" or "Personal Stickers for WhatsApp").
Open the app, create a new sticker pack, and add your images.
Follow the app's instructions to finalize and add the sticker pack to WhatsApp.
For Telegram:
Open Telegram and search for the “Stickers” bot (@stickers).
Start a new conversation with the bot by typing /start.
Use the command /newpack to create a new sticker pack, and follow the bot’s instructions to upload your images one by one.
After uploading, use the command /publish to finalize the sticker pack and get a link to use them.