Background - add and edit the background color and image or remove the background.Watermark - add watermark, edit its position, the proportion of pages, color, opacity, etc., or remove the watermark.Link - add, edit, or remove the hyperlink and its appearances, such as color, type, highlight style, line style, and line thickness.Image - rotate, extract, replace, overturn the image, change its position and size.Text - add, edit, and delete text, change the text font, color, align, line space, etc.
