On 26/07/2011 16:29, Dedovic, Enes wrote:
There are two distinct ways watermark is added to a document:
1.Watermark is added using iText. This is done by adding a text
component? Should we use signet tool instead?
2.Watermark is added using Adobe Pro's watermark tool.
We would like to be able to remove both of them.
Those are two different questions, and there is no single answer to
them. If you know EXACTLY how the watermark is created and you know
EXACTLY where to find that watermark, then you can use iText to remove it.
The main problem is that you can add watermarks in many different ways,
both with iText and Adobe. For instance: when I create a watermark using
iText, I often but the watermark in an OCG.
In the book hower, the watermark is added as an ordinary content stream
(because OCG aren't explained until chapter 15). You can add a watermark
UNDER the existing content, but if you have plenty of images in the
content, you can also add it ON TOP OF the existing content (either as a
transparent or an opaque watermark).
So... if you're looking for a "removeWatermark()" function, that's not
an option. It's not possible with iText, nor with any other tool. If
you're looking to remove watermarks that are added using a WELL DEFINED
procedure, then you should hire somebody to write SPECIFIC code that
removes that particular type of watermarks.
------------------------------------------------------------------------------
Magic Quadrant for Content-Aware Data Loss Prevention
Research study explores the data loss prevention market. Includes in-depth
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http://www.accelacomm.com/jaw/sfnl/114/51385063/
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