You can adopt the answers given in the link like this.
\documentclass[a4paper]{article}
\usepackage{atbegshi,picture,afterpage}
\usepackage{lipsum}
\title{Some article}
\author{Author here}
\begin{document}
\maketitle
\afterpage{\AtBeginShipout{\AtBeginShipoutUpperLeft{%
\put(\dimexpr\paperwidth-1cm\relax,-1.5cm){\makebox[0pt][r]{\framebox{Copyright DTV}}}%
}}}
\lipsum[1-30]
\end{document}
With background
package, you can use \NoBgThispage
\documentclass{article}
\usepackage{background}
\usepackage{lipsum}% just to generate filler text
\backgroundsetup{
scale=1,
angle=0,
opacity=.9,
position=current page.north east,
nodeanchor=north east,
hshift=-2cm,
vshift=-1cm,
firstpage=true,
contents={Some text}
}
\title{Some article}
\author{Author here}
\begin{document}
\NoBgThispage
\maketitle
\lipsum[1-30]
\end{document}
And this is Werner's solution adopted for your case:
\documentclass{article}
\usepackage{eso-pic}% http://ctan.org/pkg/eso-pic
\usepackage{lipsum}% http://ctan.org/pkg/lipsum
\usepackage{afterpage}
\title{Some article}
\author{Author here}
\begin{document}
\maketitle
\afterpage{%
\AddToShipoutPictureBG{%
\AtPageUpperLeft{%
\hspace{\paperwidth}%
\raisebox{-\baselineskip}{%
\makebox[0pt][r]{Here is some interesting text}
}}}%
}
\lipsum[1-30]
\end{document}
titlepage
or\maketitle
etc. Please clarify and post a minimal working example (MWE)