Nowadays, no matter what the job is, the use of PDF files is indispensable. There are countless kinds of PDF files. Sometimes our PDF files may be stolen by others, so many users want to know if there is a way to protect our rights and interests. So, we thought of adding watermarks to PDF files, but
As people value the security of pdf documents, it has become popular to use pdf watermarks. Generally speaking, watermark is a kind of magical thing, which cannot be erased without professional software. Many people habitually put their satisfactory works on the Internet for netizens to appreciate,
When we usually download materials on the Internet, we often see watermarks on the materials. In fact, the author added it to protect his copyright. For the pdf documents we use more, we also need to add watermarks, because This can prevent others from misappropriating, but many friend
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