If No Image Is Found, An Empty Page Will Be Removed

You have to test all the possible extensions, if you don't want to give it explicitly.

\documentclass[10pt,a4paper]{article} \usepackage{graphicx} \usepackage{textpos} \usepackage[margin=0.5in,includefoot]{geometry} \makeatletter \newcommand{\IfImageExists}[1]{% \@tempswafalse \@for\IIE@temp:=\Gin@extensions\do{% a similar test is in graphics.sty \IfFileExists{#1\IIE@temp}{\@tempswatrue}{}% }% \if@tempswa \expandafter\@firstoftwo \else \expandafter\@secondoftwo \fi } \makeatother \begin{document} \IfImageExists{example-image}{% \begin{textblock}{2.5}(0,0) \raggedright \includegraphics[height=3.2in]{example-image} \end{textblock}} {} \newpage \IfImageExists{./example-image}{% \begin{textblock}{2.5}(0,0) \raggedright \includegraphics[height=3.2in]{./example-image} \end{textblock}} {} \end{document} 

This prints only one image, because I have no example-image.??? file with a suitable extension for graphic inclusion, but there is (part of the mwe package) in a global search directory (first call).

The third argument to \IfImageExists can contain code to be executed if the image file is not found.

If you have a fixed extension, say .png, you can use

\IfFileExists{./image1.png}{<true>}{<false>} 

insteand of \IfImageExists.

Use the \IfFileExists command. The block of code that generates the second figure becomes

\IfFileExists{image2}{% \newpage \begin{textblock}{2.5}(0,0) \raggedleft \begin{figure} \includegraphics[height=3.2in]{image2} \centering \end{figure} \end{textblock}% }{}