watermark a pdf transform

[Jeff_Reynolds]

Does anyone have a setup for passing a string from a DITA Scenario parameter (like args.css.param.watermark), to watermark a pdf?

[julien_lacour]

Hello,

What Oxygen version are you using and what transformation scenario are you running?

Regards,
Julien

[Jeff_Reynolds]

Hi Julien,

I have Editor 23.0. I am running a PDF xform using HTML & CSS, through the Ashes publishing template (with some CSS changes).

[julien_lacour]

Hello,

The How to Add a Draft Watermark on All Pages topic from our user-guide will surely help you.

Starting with Oxygen 25.0 it is possible to add the watermark in the foreground, if you upgrade to this version you can follow this topic instead.

Regards,
Julien

[Jeff_Reynolds]

If there any way to pass a string in at build time?

[andrei_pomacu]

Hi,
You could pass a string as a watermark path using a custom parameter.
Firstly, you need to create a new parameter with args.css.param as prefix, your parameter could look like this args.css.param.watermark and have as values the path towards an image file.

To create a parameter in Oxygen you need to edit your transformation scenario and add a new parameter with the name and value like in the picture below.

new_param.png (85.63 KiB) Viewed 531 times

To actually add the image in the PDF view you need to catch the parameter value and and use it in PDF using CSS. To do that you need to use oxy_xpath() function. In the oxy_xpath you must locate the parameter added, so you need to catch it using the name after the args.css.param prefix. If you created an args.css.param.watermark parameter, the function will be oxy_xpath('/*/@*[local-name()="watermark"][1]').

Here is an example of how CSS rule should look like:

Code: Select all

@page {
  background-image: url(oxy_xpath('/*/@*[local-name()="watermark"][1]'));
  background-position: center;
  background-repeat: no-repeat;
  background-size: your_width your_height;
}

Regards,
Andrei

[Jeff_Reynolds]

Thank you!