How to insert watermark in PDF?
2. You can apply a preset mark in the Preset area with one click.
3. You can also click Add to customize it. In the dialog, you can select Text to input text, or select File to upload an image. Here we take File as an Example.
4. Then set its Surface and Position as needed. (You can also check Save as a custom watermark for future use.) When you finished, click OK.
5. If you want to delete the watermark, click Watermark > Delete watermark.