Watermarking is a popular technique to indicate that the content or data inside a document is copyrighted. On the other hand, it is also used to place the company’s logo or some kind of label in the documents before they are shared within or outside the company. However, it is quite hard to apply the watermark to a bunch of documents one by one. It becomes harder if you have documents of various formats such as PDF, DOCX, PPTX, XLSX, EML, JPG, PNG, etc....Watermark API. So you don’t need to add watermark...GroupDocs.Watermark is a suitable API for watermarking. This is because...