How to add text watermarks to selected products?

To add a text watermark, you can use PrestaShop Image Watermark Pro module. It can be setup within minutes. Once installed, go to its general settings and activate the module. From the main menu, select Create Watermark Rules and restrict it to specifc products or categories. Now, select Watermark Configuration and set its type to text. For a detailed overview, follow these steps:

1. Install the module, go to Modules > Module Manager > Addify Image Watermark Pro, and select configure.
2. Now, activate the module from its general settings and select Create Watermark Rules. From this section, you can manage multiple rules and track their details.
3. Click + to add a new rule and set its custom title and priority. You can restrict watermark rules to specifc products, categories, manufacturers, and suppliers. 
4. Scroll down and choose to apply a watermark to products within a specific price range and stock value.
5. Save the rule, and from the top menu bar, select Watermark Configuration. 
6. Here, you can choose the watermark type as Text Watermark, add its custom text, font size, and text color.
7. Choose to repeat the watermark across the product image or display it only once. 
8. Click save, and you have successfully added an image watermark to your product images.