After installing PDFConvert software, click Start - Programs - PDFConvert - PDFConvert to run.

Click Toolbar Settings, Click the "PDF Watermarks" button on the left.

Choose Image watermarks option if you want to add image watermark on PDF file. Click browse button to select a local image file. The image file can be any popular image formats such as BMP, PNG, JPG, GIF or TIF etc.

Choose Text watermarks option if you want to add a text watermark on PDF file. Click Font... button to change font name, size, type, and color. Enter text content in the input box. Leaving this page will save settings.

PDFConvert will apply the watermark to the PDF file when a PDF file is created from image files or documents.

Continue to next step: Set PDF Metadata