Insert new page with size of inserted image

Question

I am creating a template for document creation, where I need to insert images of varying sizes (sometimes 1024px, sometimes ~4000px wide). Those images can be oriented both vertically and horizontally.

The problem is, I can't afford to have them shrunk (there is text in them).
Is there a way to force LaTeX to create a new page as big as the picture, which picture would fully fill?

I thought of a macro, which would end document style and temporarily use a different one (change pages to horizontal, change sizes...), but I don't think this would handle sizes well.

In the past, I did this manually via Adobe Acrobat (which was able to insert an image as an independent page with its own size). I use MiKTeX 2.9.

Answer 1

Here is an example using the PNG shown below. While zooming in on the circle shows stair-stepping, both images when zoomed look the same.

\documentclass{article}
\usepackage{graphicx}
\usepackage{hyperref}

\begin{document}
\href{http://www.elfsoft2000.com/projects/large.png}{link to web image}

\href[pdfnewwindow]{large.pdf}{link to local pdf}

\includegraphics[width=0.25\textwidth]{large.png}

\noindent\includegraphics[width=\textwidth]{large.png}

\end{document}

It turns out you can only link to images on the web or local PDFs. However, one can easily convert images to PDFs using standalone.

\documentclass{standalone}
\usepackage{graphicx}
\begin{document}
\includegraphics{large.png}
\end{document}