diff --git a/businesscard-qrcode.cls b/businesscard-qrcode.cls
index 5ac8eee..0b4ca17 100644
--- a/businesscard-qrcode.cls
+++ b/businesscard-qrcode.cls
@@ -118,7 +118,7 @@
 		\ifx\BCQ@data@height\@empty
 			\def\Xcompanylogoheight{1.5em}%
 		\else
-			\def\Xcompanylogoheight{\BCQ@data@height}%
+			\edef\Xcompanylogoheight{\BCQ@data@height}%
 		\fi
 		\setlength{\BCQ@companybrandingheight}{\Xcompanylogoheight}%
 	\fi
@@ -234,7 +234,7 @@
 	\ifx\BCQ@companylogo@height\@empty
 		\def\Xcompanylogoheight{1.5em}%
 	\else
-		\def\Xcompanylogoheight{\BCQ@companylogo@height}%
+		\edef\Xcompanylogoheight{\BCQ@companylogo@height}%
 	\fi
 	\setlength{\BCQ@companybrandingheight}{\Xcompanylogoheight}%
 }
@@ -270,6 +270,8 @@
 \newsavebox{\BCQ@logobox}
 \newlength{\BCQ@logoheightdimen}
 \setlength{\BCQ@logoheightdimen}{0pt}% initialize to prevent errors
+\newlength{\BCQ@bgimagedimen}
+\setlength{\BCQ@bgimagedimen}{0pt}
 \newlength{\BCQ@reservedheight}
 \newlength{\BCQ@heightscale}
 \newlength{\BCQ@namewidth}
@@ -584,7 +586,7 @@ END:VCARD\BCQ@nl}
 	\begin{minipage}[c][\heightscale][c]{\imagepercents\textwidth}
 		\begin{tikzpicture}
 			% White background behind QR code (for readability over background images)
-			\node[fill=white, opacity=\fpeval{\BCQ@qrbgopacity@used}, inner sep=0pt, outer sep=2mm, minimum size=\textwidth] (bg) at (0,0) {};
+			\node[fill=white, opacity=\BCQ@qrbgopacity@used, inner sep=0pt, outer sep=2mm, minimum size=\textwidth] (bg) at (0,0) {};
 			% QR code on top
 			\node[inner sep=0pt, outer sep=0pt] (qr) at (0,0) {%
 				% QR code with optional qrlogo overlay in center
@@ -711,8 +713,9 @@ END:VCARD\BCQ@nl}
 			\AddToShipoutPictureBG*{%
 				\AtPageCenter{%
 					\begin{tikzpicture}[overlay]
-						\node[inner sep=0pt, opacity=\fpeval{\BCQ@bgopacity@used}] at (0,0) {%
-							\includegraphics[height=\fpeval{\BCQ@bgscale@used}\paperheight]{\Xbackground}%
+						\node[inner sep=0pt, opacity=\BCQ@bgopacity@used] at (0,0) {%
+							\setlength{\BCQ@bgimagedimen}{\dimexpr\BCQ@bgscale@used\paperheight\relax}%
+							\includegraphics[height=\BCQ@bgimagedimen]{\Xbackground}%
 						};
 					\end{tikzpicture}%
 				}%
diff --git a/examples/example.pdf b/examples/example.pdf
index 52133d9..c1c6bfc 100644
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diff --git a/examples/john-doe-hongkong.pdf b/examples/john-doe-hongkong.pdf
index 411cee9..2200699 100644
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diff --git a/examples/peter-muster-example-company-zuerich.pdf b/examples/peter-muster-example-company-zuerich.pdf
index 67388b6..8ecbab1 100644
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diff --git a/examples/photo-example.pdf b/examples/photo-example.pdf
index e9cfa64..7c7c35b 100644
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diff --git a/examples/photo-in-qr-example.pdf b/examples/photo-in-qr-example.pdf
index 8cebb05..fb608d8 100644
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diff --git a/examples/special-papersize.pdf b/examples/special-papersize.pdf
index 6f426c7..fdb9cda 100644
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diff --git a/screenshots/example.png b/screenshots/example.png
index aaf7fff..5f87699 100644
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diff --git a/screenshots/john-doe-hongkong.png b/screenshots/john-doe-hongkong.png
index 749cbcb..9918644 100644
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diff --git a/screenshots/peter-muster-example-company-zuerich.png b/screenshots/peter-muster-example-company-zuerich.png
index 2071d84..90e2618 100644
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diff --git a/screenshots/photo-example.png b/screenshots/photo-example.png
index 2b68f24..afea13f 100644
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diff --git a/screenshots/photo-in-qr-example.png b/screenshots/photo-in-qr-example.png
index 0cb21c0..6b1c604 100644
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diff --git a/screenshots/special-papersize.png b/screenshots/special-papersize.png
index ed02e7d..692f9c3 100644
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diff --git a/screenshots/texstudio_d30266.png b/screenshots/texstudio_d30266.png
index f11d551..2e2c847 100644
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