Add, Edit, and Remove Watermark in PDF
Watermarks are essential in defining the ownership of the PDF document. Here are the steps to add and edit watermark in PDF with UPDF on Mac.
Add Watermark
You need to click on the Tools button and select "Watermark" > "Add Watermark".

Now, choose Preset watermarks or Starred ones according to add text/file (Image/PDF) watermark. You can also create one by clicking the Create button.

Now, if you select text watermark, add text in the Content box, set font color, font style, alignment, and underline it, if needed. You can also choose the Ratio, Opacity, Page Ranges of the watermark across the document.
The page range can be custom, and you can also select an option from the dropdown menu. You get multiple options, like all pages in your custom range, just odd or just even pages, etc.

Click "Done” to save the new watermark and add it to the selected page range.
Below is the video tutorial on how to add a watermark to PDF on Mac with UPDF. Watch it now:
Edit Watermark
To edit a watermark, find the created watermark in the right column. Hover your cursor to the watermark and click on the "Edit Watermark" icon.

With the editing panel opened across the right-handed column, set all parameters to be edited. Click "Done" once done.

Delete Watermark
If you intend to delete a watermark, click on the "Remove" icon on the top toolbar. After that, click the "Remove" button on the pop-up window. This will successfully delete the watermark on your PDF too.
