With so many tools to crack PDFs and download PDFs, it is easy for anybody to steal your hard work. To save yourself from such scenarios, it is a very good idea to put a watermark on your PDFs just like you put a watermark on your images. PDF-Watermark is an online tool that lets you do that without any hassle.

All you need to do is head over to PDF-Watermark ^[1] and upload the PDF files you want to watermark. After that, customize your watermark by choosing the text, font type, font size, color and watermark angle. You also have an option of adjusting the transparency of watermark. Once you are done, click “watermark PDF” and a watermark would be applied to your PDF files. You can then download the modified PDFs to your local drive.

It is a very useful freeware that allows you to protect your PDFs without the hassle of downloading or installing any complicated software.