Unless the content is in the public domain or has a Creative Commons license, making a local copy without permission is technically copyright infringement.
Downloading content through unauthorized means is a direct violation of YouTube's Terms of Service .
For offline viewing, YouTube Premium allows you to legally download videos within the YouTube app for a monthly subscription fee. This is the only method that directly compensates the creators for your "offline" views.
The best way to watch is on the official BLACKPINK YouTube channel . It is available in high definition (1080p) and even supports 4K on compatible devices.
