iSkysoft PDF Editor 6 Professional enables you to add watermark to a PDF files easily, so that you can protect your intellectual and artistic property. To watermark a PDF, you can refer to the following guide.

After you've imported a PDF file to the program, open the "Edit" menu and click on the "Watermark" button and select the "New Watermark" option from the drop-down list. Then you can open the "Add Watermark" panel.

Add text watermark to PDFs

In the new opened "Add Watermark" panel, you can add text watermark to a PDF file easily. Click on the "Text" button and enter the content you wanted. You can also change the font style and color according to your needs. After you've confirmed the settings, click on the "OK" button to add text watermark to the PDF easily.

Add image watermarks to PDFs

If you want to add an image as watermark, you can choose the "File" option and click on the "Browser" button to select the desired image from the local folder. Then you can click on the "OK" button to add image watermark to your PDF files.

Watermark settings

You can also change the watermark settings in the "Add Watermark" panel. You can change the position and place of the watermark by clicking on the "Position" and "Place" option. For further settings you can click on the "Advanced Settings" on the left bottom.

From the drop-down list, you can set the page range, rotate the watermark, change opacity and location of the watermark according to your needs.

To update or remove watermarks from PDF files, you can go to "Edit" > "Watermark". Then you can choose to update or remove existing watermark from your PDF files without any hassle.