Step-by-Step Guide to Adding Watermark in Adobe Reader
1. Open your PDF document in Adobe Reader. 2. Click on 'Tools' and select 'Edit PDF'. 3. Choose 'Watermark' from the menu. 4. Click 'Add' to insert a text or image watermark. 5. Customize the watermark settings such as opacity, size, and position. 6. Save your edited PDF with the watermark applied.