It's simple to add text that is displayed on the Vuzit viewer and
generated PDF files. This is typically used to identify the
end-user that has access to a sensitive document. However, the
text you specify in the watermark variable can
be any arbitrary text.
Example
Note how this places a document watermark on the actual viewer making it
easy to identify the end-user. A watermark is also placed on the
PDF file when you press the Download or
Print PDF button.
Usage
Vuzit provides two interfaces for creating document watermarks.
The first is to use the Javascript API that provides control over
the viewing interface, as well as when the end-user downloads the
document. Vuzit also provides a Web Service API that can be used
to directly download the document. Both of these methods require
authentication to ensure integrity and non-repudiation against
replay attacks.
Vuzit can optionally generate a PDF file when you submit a
document. If this option is selected, then the generated PDF
file will contain watermarks when using our APIs. Vuzit cannot
place watermarks on the original file unless it is a PDF (e.g.
Microsoft Word documents). However, Vuzit's extensive APIs make
it easy for you to prevent access to the original document, and
only making a watermarked PDF file available for download (or
none at all).
The Web Service API documentation
explains all of the methods Vuzit provides for interacting with your account.
The noteworthy areas for watermarking are as follows:
