Shutterstock watermark alert
The Shutterstock plugin is a great tool for easy access to the image database. Drag and drop the desirable picture into the lay-out.
It would help if watermark pictures would be detected while exporting to pdf.
James Pattinson commented
You can either drop the image if the watermark is on the side, or you can use the watermark remover online for the best and the easiest removing of the watermark.