Does someone knows how to take down a chapter and upload a better one? There's a certain m...

Does someone knows how to take down a chapter and upload a better one? There's a certain manhwa that has really bad quality and translation so i want to upload a better one since I'm the og uploader they keep uploading chapters with watermarks on it ╥﹏╥, the readers also suggest me to upload other ver. Coz the somebody who suddenly upload over me sucks. Please help me guys, i really want to know （/TДT)/