On the Design tab, select Watermark. Choose a pre-configured watermark, like DRAFT, CONFIDENTIAL, or DO NOT COPY. For placing a logo or image, Select Watermark > Custom Watermark > Picture watermark > Select Picture. On the same menu you can create a custom text watermark.
Choose Editor on the toolbar -> Watermark -> Add Watermark to set Text or Image watermark.
When a user needs to print confidential data, watermarks are a powerful, visual aid that reminds users of the need to properly handle, protect and dispose of printed material. Obvious examples of watermarks include shaded text phrases like “Top Secret”, “Confidential”, and “Internal Use Only”.
There are two types of digital watermarking, visible and invisible.
Marking documents as confidential can help prevent theft or misuse. Marking documents as confidential can potentially stop trade secret theft or misuse before it occurs by providing notice to users regarding the sensitive nature of the information included within the documents.
Watermarks are a great way to prove that you're the rightful owner of a document. Watermarks can be used to prove ownership of any content in documents that were stolen or used without permission. Watermarks can be used to protect intellectual property and prevent content theft and unauthorized use.
A watermarking system is usually divided into three distinct steps, embedding, attack, and detection. In embedding, an algorithm accepts the host and the data to be embedded, and produces a watermarked signal. Then the watermarked digital signal is transmitted or stored, usually transmitted to another person.
A watermark typically identifies or decorates pages, and it can be either text or an image. Examples include the word "Confidential" stamped on every page or a business logo appearing in the background of every page of the document.
Protect PDF from Copying and Editing
Go to the "Protect" tab, and click the "Set Password" button. Then select the "Permission Password" option. Uncheck "Enable copying of text, images and other content" and enter your desired password. Once confirmed, click on the "Save" button to apply, and save your PDF file.
Open a file in Acrobat and choose “Tools” > “Protect.” Select whether you want to restrict editing with a password or encrypt the file with a certificate or password. Set password or security method as desired. Click “OK” and then click “Save.”
There are two main types of watermarks you should know about: Visible Watermarks. Invisible Watermarks.
Choose Document > Watermark > Add. Specify the watermark: To reuse a watermark and watermark options that you saved in an earlier session, select it from the Saved Settings menu. To create a text watermark, select Text, and type the text in the box.
Other watermarking techniques use transform methods, such as the FFT, DCT, and Wavelet transform to embed the watermark. Recent developments have also seen the use of the Human Visual System to improve watermark performance [2].
A watermark is a logo, piece of text or signature superimposed onto a photograph. Watermarks are typically transparent, so those viewing the image can still admire it. You can usually identify the photographer through the watermark, too.
Promotes Negative Image of You
Although a watermark is intended to protect your rights, the appearance of one could have a negative impact on your brand. Copyrighting all your online images could give the impression to viewers that you are more concerned with possible theft than displaying the image as it was intended.
True Water Marks:
This mark becomes apparent when the paper is held up to light and is visible from the front or back of the document. A true watermark is difficult to reproduce. It cannot be be duplicated on either a scanner or a copier.
As long as the watermark covers the most significant parts of the image, anybody who wants to copy the image is unlikely to be able to remove it. Consequently, visible watermarks act as a deterrent to unauthorised copying.
Use appropriate labels
One way to indicate confidentiality and sensitivity is to use labels on the letter and the envelope, such as "Confidential", "Personal", "Private", or "Sensitive". These labels should be placed on the top or bottom of the letter, and on the front or back of the envelope.
While there are instances when an implied duty of confidentiality can exist, there is no implied duty to mark information “CONFIDENTIAL” in the United States. This duty only exists contractually. That means that if a contract is silent on a marking requirement, then no there is no duty to mark.