how to add watermark in pdf

In modern society, various office software greatly facilitates people's work efficiency, but at the same time it also makes the cost of plagiarism lower. Document plagiarism is particularly serious, so it is very necessary to add watermarks to our documents. Before adding the watermark

We often need to add watermarks to PDF documents to ensure the security of our documents, but some friends may not know how to add watermarks to pdfs. The editor has shared a detailed tutorial for you here. Users who need it can follow Follow the steps below, let's take a look at it to