1. Enter your PDF file and click , then choose Add Watermark;
2. Add Text or Image watermark. You can also change the color, opacity and position of the watermark, and set page range.
3. To edit the existed watermarks, click , then choose Edit Watermark, then you can click Edit and adjust the watermark’s type(text/image), color, opacity, position and page range. Or you can click Reset to restore default settings. To delete watermarks, click Delete after you choose Edit Watermark.