How to set text background transparency with leaflet?

Question

I am trying to set a semi-transparent background for some text, so we can see the image behind it. To do so, I am using tcolorbox. However, it seems that I can not get it working with the leaflet document class.

Any suggestions?

\documentclass[10pt,a4paper]{leaflet}
\usepackage[many]{tcolorbox}
\newtcolorbox{mybox}[1][]{
width=\textwidth,
arc=2mm,
% auto outer arc,
boxsep=0cm,
toprule=0.5pt,
leftrule=0.5pt,
bottomrule=0.5pt,
rightrule=0.5pt,
colframe=black,
colback=white!25,
breakable,
nobeforeafter,
enhanced jigsaw,
opacityframe=0.1,
opacityback=0.5
}
\AddToBackground{1}{\put(0,415){\includegraphics[width=9.9cm]{example-image-c}}}
\begin{document}
\begin{mybox}[]
    \begin{itemize}
        \item a
        \item b
        \item c
        \item d
    \end{itemize}
\end{mybox}
\end{document}

It appears tcolorbox is incompatible with leaflet.cls. TikZ works, but even the simplest tcolorbox does nothing. — John Kormylo, Jun 10 '22 at 20:16
You could try flowfram instead of leaflet. See https://tex.stackexchange.com/questions/248182/number-of-pages-in-leaflet/248248?r=SearchResults&s=24%7C10.5390#248248 — John Kormylo, Jun 10 '22 at 20:31
similar issue here https://tex.stackexchange.com/questions/452459/use-opacity-from-tikz-in-leaflet-documentclass — Tom, Jun 10 '22 at 21:00

score 3 · Accepted Answer · answered Jun 10 '22 at 21:08

3

The leaflet class empties the shipout hooks and this means that tikz can't add the needed resources to the page. With a current (!) LaTeX you could try to use the new pdfmanagement. It uses a different hook that is not affected by leaflet:

\DocumentMetadata{} %load new pdfmanagement, requires current latex
\documentclass[10pt,a4paper]{leaflet}
\usepackage[many]{tcolorbox}
\newtcolorbox{mybox}[1][]{
width=\textwidth,
arc=2mm,
% auto outer arc,
boxsep=0cm,
toprule=0.5pt,
leftrule=0.5pt,
bottomrule=0.5pt,
rightrule=0.5pt,
colframe=black,
colback=white!25,
breakable,
nobeforeafter,
enhanced jigsaw,
opacityframe=0.1,
opacityback=0.5
}
\AddToBackground{1}{\put(0,415){\includegraphics[width=9.9cm]{example-image-c}}}
\begin{document}
\begin{mybox}[]
    \begin{itemize}
        \item a
        \item b
        \item c
        \item d
    \end{itemize}
\end{mybox}
\end{document}

answered Jun 10 '22 at 21:08

Ulrike Fischer

327,261

How can I compile this? – Tom Jun 10 '22 at 23:58
@Tom with the newest pdflatex, or with pdflatex-dev, or with by first loading pdfmanagement-testphase – Ulrike Fischer Jun 11 '22 at 06:23
I see. Thank you! I try it successfully on local compile. But not working on overleaf, that's could need some time. – Tom Jun 11 '22 at 07:25
@Tom On overleaf you could try to load pdfmanagement-testphase and then use \DeclareDocumentMetadata as command (we shortened the name in newer latex). But I'm not sure if all the needed patches are already there in overleaf. – Ulrike Fischer Jun 11 '22 at 07:29
It's working. Thank you for the clarification. – Tom Jun 11 '22 at 07:34
@Tom Were you able to make this working on Overleaf? I had no success on my side. – Philippe Massicotte Jun 12 '22 at 11:21
1

@Philippe add this \RequirePackage{pdfmanagement-testphase} \DeclareDocumentMetadata{} before \documentclass command. – Tom Jun 12 '22 at 17:28
Thank you, works perfectly! – Philippe Massicotte Jun 13 '22 at 10:53

How to set text background transparency with leaflet?

1 Answers1