If you want to remove a watermark from a tax return, you'll need to amend the printing preferences:

1. Open the tax return.
2. Click on Check and Finish.
3. Click on Print.
4. Click on Next Step in the HMRC warning message (if applicable).
5. Un-tick Would you like to add a watermark? (towards the bottom of the printing preferences list).

If you want to change the watermark, complete the following steps:

1. Follow steps 1 to 4 above.
2. Select and click on a different watermark from the drop-down menu.
3. Recreate the preview.