AH Formatter / XSL Formatter
Q&A

In your stylesheet,

<fo:block  position="absolute" top="10mm" right="30mm">
     This text should be positioned?
</fo:block>

The absolute position property is applied to fo:block container not to fo:block. Please specify as follows:

<fo:block-container  position="absolute" top="10mm" right="30mm">
   <fo:block>This text should be positioned ?</fo:block>
</fo:block-container>