Question
What is the Halacha regarding sticking on Shabbat? like peeling a sticker off paper or sticking a sticker on to an object and peeling sticker off.
Answer
Stickers should not be used on Shabbat; it is a derivative of the Av Melacha of Tofer – stitching [Shulchan Aruch OC 340:14, SSK p. 188]