Word Personalized Watermarks

Add a text watermark
On the Design tab, in the Page Background group, choose Watermark

The Watermark command in Word 2013. On the Design tab, click Watermark.

Choose one of the built-in watermarks in the displayed watermark gallery. If you want to add your own text watermark see, Create and save a custom watermark.

Word automatically applies the watermark to every page except a designated cover page.

NOTE: If your document already has a watermark and you want to remove it, you can.

Text Watermark
Add a picture watermark
On the Page Layout tab, in the Page Background group, choose Watermark.

Office 14 Ribbon

You can turn a picture, clip art, or a photo into a watermark that you can use to brand a document.

Choose Custom Watermark.

Select Picture watermark, and then choose Select Picture.

Select the picture that you want, and then choose Insert.

Select the Washout check box to lighten the picture so that it doesn't interfere with text.

Picture Watermark
Add a watermark only to selected pages
To add a watermark only to certain pages, those pages need to be in a separate section. You can break down a document into parts using section breaks and apply a watermark only to that section. Unlink the sections, before you apply a watermark so the sections don’t automatically copy each other. See how tocreate section breaks.

Place the cursor on the page (after the section break) where you want the watermark to appear.

On the Design tab, in the Page Background group, choose Watermark

The Watermark command in Word 2013. On the Design tab, click Watermark.

Select a watermark from the displayed gallery or create a custom watermark.

Watermark on selected pages
Add a watermark to a single page
You can add a watermark such as Confidential to a single page in a document. Place your cursor on the page that needs the watermark.

On the Design tab, in the Page Backgroundgroup, choose Watermark.

Right-click on any watermark in the watermark gallery and choose, Insert at current document position.

The chosen watermark is inserted only on a single page



read more on https://support.office.com/en-us/article/Insert-a-watermark-in-Word-f90f26a5-2101-4a75-bbfe-f27ef05002de

Many thanks for the answers so far. Rob is exactly right, about the goal. It should create a different Watermark on each page.
I wil try to do it your way Rob.

Many thanks for the Input and have a nice day ahead

You can use a StyleRef field code to automatically pick up the content of a given style to use in a page header (to get contextual headings with the chapter name or major subheadings for example). If your recipient name was set with a unique style (either a paragraph or character style), you could include the StyleRef field code in a text box attached to the page header and set with wrapping =  Behind Text. With mail merge, you'd only need to apply the style to the recipient name code in the merge template; every letter would then automatically apply the style to the recipient's name.

The content of the text box could then be formatted however you'd like to appear behind the body copy.

For each new letter, the StyleRef field will aromatically pick up the recipient name and use it in the text box until a new value is encountered.

Here's an example of how it might look. The text box attached to the page header has a field code { STYLEREF "Heading 3" } to enable it to pick up the content for the final instance of a Heading 3 styled paragraph on any given page. I've adjusted the style for Heading 3 to make it display in large red letters so you can see that it would works for a letter that might flow past a single page.

This worked like a Charm this way. Inserted a Textbox, Send it behind Text, made the text 75% transparent and linked it to the Excel List. Done in 5 minutes. Many thanks for the help and this was so easy I'm a little embarressed ;-).

Have a nice day everyone and many thanks to everyone who responded.