8, the following chart, point "Delete", delete the hard disk is a ring .......

9, it is necessary to pay attention to:As the book's cover is the color of the , it is necessary to return to the cover page, click to select the watermark directly by the DEL key to delete the keyboard, or else, then you know.
In fact, at this time, if you lower the number of pages of PDF books, each page is entirely possible to click the DEL key to delete, save to complete the exception of a watermark, but if you book up to 4000 words, and then down Check it out!