Batch process watermark in Corel Draw / Corel Photo Paint
You can do this by recording a Script in Photo-Paint. (Windows>Dockers>Recorder)
Before recording, first create a watermark in a new document with NO background. Save as a .cpt.
Record the script something like this… Open your image, (now press Start Recording) import the watermark.cpt, click to place it and then postion it where you like. Combine with background (go to menu Object – Combine – Combine Objects with Background) and save new image to different folder. Save the script.
Now use File>Batch Process and use your recorded script.