Can I remove dark background pictures in a given pdf file?

Question

Maybe a long shot, but I give it a try here. Correct me if it is not a relevant question.

Imagine that you have a given pdf file containing slides of a presentation with a dark background:

a) black background with white text

or

b) for instance blue background with black text

You want to print hand-outs of this pdf file, but you want to modify it in order to reduce ink consumption:

a) invert all the colours

or

b) remove the dark background.

I have found some posts about the removal of a background or watermark using Adobe Reader. I was wondering if there exists a way to do this using LaTeX?

Update after comment by samcarter

I had a look at this question. I have come up with following MWE:

\documentclass[a4paper,landscape]{article}
\usepackage{graphicx}
\usepackage[final]{pdfpages}
\usepackage[margin=0in]{geometry}

\begin{document}
\includegraphics[]{figure.png}
\includegraphics[decodearray={0.2 0.3 1 0 1 0.8}]{figure.png}
\includepdf[decodearray={0.2 0.3 1 0 1 0.8}, pages = -]{file.pdf} %not working
\end{document}

It works for the file figure.png (a first test). But now I want to apply the colour change to each page of the file file.pdf. It seems that I cannot use the decodearray with \includepdf (as shown in the MWE), or that I cannot insert all the pages of the pdf using \includegraphics.