![]() ![]() So the safest way is to encrypt the file or add your own watermark (name or image of a person/company/organization, etc). ![]() These logos, whether they are images, stamp, or texts, are collectively referred to as watermarks and are used to protect the copyright of documents in case they are stolen by others and cause infringement.Īlthough PDF files are not easy to be edited and copied by others, as long as the other party uses a PDF editor or other tools, the contents of your files can be easily obtained. When we read files or view images on the Internet, we often see a watermark in the middle or at the bottom of the file, telling you where the file or image comes from, and who owns the copyright.
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