Watermarking images is quite easy, you might use either some online watermarking tools or Adobe Photoshop to get it done. But its not limited to images only, you may watermark the PDF files too to add a bit of security to it. Please note that just by adding a watermark you can’t consider your PDF file to be completely secure because there are few ways to remove the watermark too.
Anyway lets have a look on how you can add a watermark to your PDF files? For adding a watermark to your PDF files head over to PDF-Watermark, its a simple online tool to watermark your PDF files online.
Upload the PDF file that is to be watermarked. Select the watermarking text, font size, font colour, font type and few other parameters as per your requirements and finally click on the Watermark PDF button. After this your PDF file is watermarked and you can download it back to your PC.
Note: There is a size limit of 10 Mb on the size of the PDF file to be watermarked.
Recommended for reading: How to Make Your Online Document Sharing Secure With WatchDox
Shahab khan is a Tech blogger from India & a founder of VirginTech. He blogs about Technology, internet, Social media, computer tips & tricks and Web 2.0. 
