Decipher

But when I was scaling down pictures before, it was smooth, and not badly pixelated. that's weird.

Hello, I am new here and sorry if this is in the wrong forum. I was copying and pasting images soo goodly smooth But one day suddenly when i tried to copy and paste, the image got pixelated when i resized it. Could someone help me please? been trying to solve this, couldnt find anything. I know there is something where you can set Pixelated to Smooth but idk where it is now. Please help