Add, Edit, and Remove Background in PDF
If you want to enhance your created PDF, you can consider adding backgrounds across it.
Add Background
To add a background to the PDF, select "Background" from the Tools menu and click on the "Add Background" button at the top.

You can select Preset > Paper/Color/Gradient or Starred, and then click Create. Alternatively, just click Create and choose Image/PDF as background in the pop-up window.

As you add or import a background of any nature, you can set its ratio of covering the document with a slider. You can also set the slider of its "Opacity" and "Ratio of Background" with available options.

Find the "Page Range" button and set the range of pages where you want to apply this background.

Click "Done" button to add the background.

Edit Background
Click on the "Edit" icon present on the top toolbar. Here, you can find the added background as a template in the right column. You can then change the background as per your requirements.

Once done, click on "Done" to change it.

Remove Background
If you want to delete a background, click on the "Remove" icon. Then click on "Remove" button on the pop-up window.
