added background with opacity to QR-Code and card; bug in card opacity

README.md

@@ -97,8 +97,12 @@ Layout options are set as options to the `\documentclass`, e.g.:
 - `countryformat=`: how to format the country in address. Values: `auto` (default: inline with mdash if <4 chars and city/zip exists), `inline` (always inline with mdash), `below` (always separate line)
 - `qreclevel=`: QR error correction level `L` (~7%), `M` (~15%), `Q` (~25%), or `H` (~30%), default: `Q`. Use `H` when `photoinqr=true`.
 - `photoinqr` or `nophotoinqr`: place photo in the center of the QR code (`photoinqr`) instead of next to the name, default: `nophotoinqr`. **Requires `qreclevel=H` for reliable scanning**.
-- `qrlogoscale=`: photo size in QR code as percentage of QR width (0-100), default: `25` (25% width = 6.25% area). Recommended values: Level H: 25-30%, Level Q: 20%, Level M: 15%, Level L: 10%. Higher values may reduce scannability.
-- `qrlogoborder=`: transparent padding around photo in QR code as percentage of QR width (0-100), default: `2` (2%). Adds space between photo and QR modules.
+- `qrlogoscale=`: photo size in QR code as fraction of QR width (1.0 = 100%), default: `0.25` (25% width). Recommended values: Level H: 0.25-0.3, Level Q: 0.2, Level M: 0.15, Level L: 0.1. Higher values may reduce scannability.
+- `qrlogoborder=`: transparent padding around photo in QR code as fraction of QR width (1.0 = 100%), default: `0.02` (2%). Adds space between photo and QR modules.
+- `photoscale=`: scale factor for photo next to name (1.0 = 100% of name height), default: `1.0`. Use values like `2.0` or `2.5` for larger photos.
+- `bgscale=`: background image scale factor (1.0 = 100% of card height), default: `1.0`. Use values like `1.5` or `2.0` for zoomed/cropped backgrounds. Only affects images, not colors.
+- `bgopacity=`: background image opacity/transparency (1.0 = 100% visible, 0.0 = invisible), default: `1.0`. Use lower values like `0.2` or `0.3` to fade the background so text remains readable. Only affects images, not colors.
+- `qrbgopacity=`: QR code background opacity (1.0 = solid white, 0.0 = transparent), default: `1.0`. White background behind QR code ensures scannability over background images. Use `0.0` for no background or lower values like `0.8` for semi-transparent.
 
 
 Data Definitions
@@ -156,6 +160,8 @@ See this example_
 - `\google`: your account name on [google+] — only the name of the account, the url is prepended automatically
 - `\pgpurl`: the full url to your pgp public key (only added to the QR-Code, not shown in the text)
 - `\pgpfingerprint`: the fingerprint of your pgp public key
+- `\photo`: path to photo file (PNG, JPG, etc.) for display next to name or in QR code (if `photoinqr` option is set)
+- `\background`: path to background image file or color name (e.g., `yellow!20`, `blue!10`). If file exists, it's used as image; otherwise treated as color.
 
 
 Print the Card
@@ -221,17 +227,36 @@ You can add an optional photo that appears next to the name or in the center of
 
 **Photo in QR code center:**
 ```latex
-\documentclass[photoinqr,qreclevel=H,qrlogoscale=25]{businesscard-qrcode}
+\documentclass[photoinqr,qreclevel=H,qrlogoscale=0.25]{businesscard-qrcode}
 \photo{photo.jpg}
 ```
 
 **Important:** When using `photoinqr=true`:
 - Always use `qreclevel=H` (highest error correction ~30%) for reliable scanning
 - Test QR code scannability with multiple apps before printing
-- Default `qrlogoscale=25` (25% width = 6.25% area) is recommended for Level H
-- If scanning fails, reduce to `qrlogoscale=20` or `qrlogoscale=15`
+- Default `qrlogoscale=0.25` (25% width = 6.25% area) is recommended for Level H
+- If scanning fails, reduce to `qrlogoscale=0.2` or `qrlogoscale=0.15`
 - PNG transparency is preserved - use images with transparent backgrounds for best results
 
+**Large photo next to name:**
+```latex
+\documentclass[photoscale=2.5]{businesscard-qrcode}
+\photo{photo.jpg}
+```
+
+**Background color:**
+```latex
+\documentclass{businesscard-qrcode}
+\background{yellow!20}
+```
+
+**Background image:**
+```latex
+\documentclass[bgscale=1.5,bgopacity=0.3,qrbgopacity=1.0]{businesscard-qrcode}
+\background{photo.jpg}
+```
+Note: Use `bgopacity` to fade the background (e.g., `0.2` or `0.3`) so text remains readable. The QR code has a white background by default (`qrbgopacity=1.0`) to ensure scannability.
+
 
 Need More
 =========

businesscard-qrcode.cls

@@ -21,8 +21,12 @@
 \DeclareStringOption[0.50]{textwidth}
 \DeclareStringOption[0.40]{qrwidth}
 \DeclareStringOption[Q]{qreclevel} % QR code error correction level (L,M,Q,H) default Q
-\DeclareStringOption[25]{qrlogoscale} % photo size in QR code as percentage of QR width (0-100), default 25%
-\DeclareStringOption[2]{qrlogoborder} % white padding around photo in QR as percentage of QR width (0-100), default 2%
+\DeclareStringOption[0.25]{qrlogoscale} % photo size in QR code as fraction of QR width (1.0 = 100%), default 0.25
+\DeclareStringOption[0.02]{qrlogoborder} % white padding around photo in QR as fraction of QR width (1.0 = 100%), default 0.02
+\DeclareStringOption[1.0]{photoscale} % scale factor for photo next to name (1.0 = 100% name height), default 1.0
+\DeclareStringOption[1.0]{bgscale} % background image scale (1.0 = 100% card height), default 1.0
+\DeclareStringOption[1.0]{bgopacity} % background image opacity (1.0 = 100% visible, 0.0 = invisible), default 1.0
+\DeclareStringOption[1.0]{qrbgopacity} % QR code background opacity (1.0 = white solid, 0.0 = transparent), default 1.0
 \DeclareStringOption[de]{lang}
 \DeclareBoolOption[false]{ioscrlf} % use CRLF line endings in vCard (iOS compatibility); default off to avoid pdfTeX issues
 \DeclareBoolOption[false]{photoinqr} % if true: photo goes in QR center; if false (default): photo next to name
@@ -75,6 +79,7 @@
 \RequirePackage{wrapfig}
 \RequirePackage{graphicx} % needed for optional photo
 \RequirePackage{tikz} % needed for logo overlay in QR code
+\RequirePackage{eso-pic} % needed for background images without layout impact
 \RequirePackage[\content,top=\padding,left=\padding,right=\padding,bottom=\padding]{geometry}
 %\RequirePackage{pbox}
 \RequirePackage{varwidth}
@@ -127,6 +132,7 @@
 \registerData{pgpurl}
 \registerData{pgpfingerprint}
 \registerData{photo} % path to photo file for display next to name
+\registerData{background} % path to background image file or color name
 
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -279,30 +285,37 @@ END:VCARD\BCQ@nl}
 
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% insertqrcode - insert the qr-code
+% insertqrcode - insert the qr-code with optional white background
 \newcommand\insertqrcode{
 	%\frame
 	{
 	\begin{minipage}[c][\heightscale][c]{\imagepercents\textwidth}
-		\ifBCQ@photoinqr
-			% QR code with photo overlay in center
-			\ifcsdef{Xphoto}{%
-				\begin{tikzpicture}
-					\node[inner sep=0pt] (qr) {\qrcode[level=\BCQ@qreclevel,version=0,height=\textwidth]{\vcard}};
-					% Photo with transparent background preserved (no fill), padding still applied
-					% Convert percentage values to fractions for calculations
-					\node[inner sep=\fpeval{\BCQ@qrlogoborder/100}\textwidth] at (qr.center) {%
-						\includegraphics[width=\fpeval{\BCQ@qrlogoscale/100}\textwidth]{\Xphoto}%
-					};
-				\end{tikzpicture}%
-			}{%
-				% No photo defined, just show QR code
-				\qrcode[level=\BCQ@qreclevel,version=0,height=\textwidth]{\vcard}%
-			}
-		\else
-			% Standard QR code without overlay
-			\qrcode[level=\BCQ@qreclevel,version=0,height=\textwidth]{\vcard}
-		\fi
+		\begin{tikzpicture}
+			% White background behind QR code (for readability over background images)
+			\node[fill=white, opacity=\fpeval{\BCQ@qrbgopacity}, 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) {%
+				\ifBCQ@photoinqr
+					% QR code with photo overlay in center
+					\ifcsdef{Xphoto}{%
+						\begin{tikzpicture}
+							\node[inner sep=0pt] (qr2) {\qrcode[level=\BCQ@qreclevel,version=0,height=\textwidth]{\vcard}};
+							% Photo with transparent background preserved (no fill), padding still applied
+							% qrlogoscale and qrlogoborder are now fractions (1.0 = 100%)
+							\node[inner sep=\BCQ@qrlogoborder\textwidth] at (qr2.center) {%
+								\includegraphics[width=\BCQ@qrlogoscale\textwidth]{\Xphoto}%
+							};
+						\end{tikzpicture}%
+					}{%
+						% No photo defined, just show QR code
+						\qrcode[level=\BCQ@qreclevel,version=0,height=\textwidth]{\vcard}%
+					}%
+				\else
+					% Standard QR code without overlay
+					\qrcode[level=\BCQ@qreclevel,version=0,height=\textwidth]{\vcard}%
+				\fi
+			};
+		\end{tikzpicture}
 	\end{minipage}
 }
 }
@@ -319,9 +332,10 @@ END:VCARD\BCQ@nl}
 			{\bfseries\usebox{\BCQ@namebox}}%
 		\else
 			% Photo next to name: two-column layout (photo | name)
+			% photoscale: 1.0 = 100% name height (default), 2.0 = 200%, etc.
 			\begin{minipage}{\textwidth}
 				\begin{minipage}[c]{0.30\textwidth}% photo column (increased from 0.22)
-					\includegraphics[height=\dimexpr\ht\BCQ@namebox+\dp\BCQ@namebox\relax]{\Xphoto}% scaled to name height
+					\includegraphics[height=\fpeval{\BCQ@photoscale}\dimexpr\ht\BCQ@namebox+\dp\BCQ@namebox\relax]{\Xphoto}% scaled to photoscale * name height
 				\end{minipage}
 				\hfill
 				\begin{minipage}[c]{0.67\textwidth}% name column (adjusted from 0.75)
@@ -336,8 +350,8 @@ END:VCARD\BCQ@nl}
 }
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% drawcard - assemble all blocks into the visiting card
-\newcommand\drawcard{
+% drawcardcontent - assemble all blocks (name, text, qr, pgp)
+\newcommand\drawcardcontent{
 	\ifBCQ@rightalign\begin{flushright}\fi
 		\insertname 
 		\noindent\makebox[\linewidth]{\rule{\paperwidth}{0.4pt}} % horizontal line
@@ -362,6 +376,29 @@ END:VCARD\BCQ@nl}
 	\ifBCQ@rightalign\end{flushright}\fi
 }
 
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% drawcard - main card with optional background
+\newcommand\drawcard{
+	% Handle background
+	\ifcsdef{Xbackground}{%
+		\IfFileExists{\Xbackground}{%
+			% It's an image file: add to background using eso-pic (no layout impact)
+			\AddToShipoutPictureBG*{%
+				\AtPageCenter{%
+					\tikz[overlay]{\node[opacity=\fpeval{\BCQ@bgopacity}, inner sep=0pt] at (0,0) {%
+						\includegraphics[height=\fpeval{\BCQ@bgscale}\paperheight]{\Xbackground}%
+					};}%
+				}%
+			}%
+		}{%
+			% Not a file: treat as color
+			\pagecolor{\Xbackground}%
+		}%
+	}{}%
+	% Draw card content
+	\drawcardcontent
+}
+
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % cut / crop marks

examples/background-color-example.tex

@@ -0,0 +1,18 @@
+% !TeX program = xelatex
+\documentclass{businesscard-qrcode}
+
+\type{home}
+\givennames{Anna}
+\familynames{Beispiel}
+\street{Musterweg\ 7}
+\city{Zürich}
+\zip{8000}
+\country{CH}
+\phone{+41 44 123 45 67}
+\email{anna@example.ch}
+\homepage{example.ch}
+\background{yellow!20}
+
+\begin{document}
+	\drawcard
+\end{document}

examples/background-image-example.tex

@@ -0,0 +1,19 @@
+% !TeX program = xelatex
+\documentclass[bgscale=1.2,bgopacity=0.3,qrbgopacity=0.2
+]{businesscard-qrcode}
+
+\type{home}
+\givennames{Petra}
+\familynames{Test}
+\street{Bildstrasse\ 99}
+\city{Basel}
+\zip{4000}
+\country{CH}
+\phone{+41 61 123 45 67}
+\email{petra@example.ch}
+\background{background.png}
+\photo{photo.png}
+
+\begin{document}
+	\drawcard
+\end{document}

examples/photo-in-qr-example.tex

@@ -1,5 +1,5 @@
 % !TeX program = xelatex
-\documentclass[photoinqr,qrlogoscale=40,qreclevel=H]{businesscard-qrcode}
+\documentclass[photoinqr,qrlogoscale=0.4,qreclevel=H]{businesscard-qrcode}
 
 \type{home}
 \givennames{Lisa\ Linda}
@@ -12,7 +12,7 @@
 \phone{+1 234 567 8900}
 \email{ldoe@example.com}
 \homepage{example.com}
-\photo{photo.png}
+%\photo{photo.png} % uncomment if photo.png exists
 
 \begin{document}
 	\drawcard

examples/photo-large-example.tex

@@ -0,0 +1,19 @@
+% !TeX program = xelatex
+% Note: Requires photo.png in same directory
+\documentclass[photoscale=4]{businesscard-qrcode}
+
+\type{home}
+\givennames{Max}
+\familynames{Muster}
+\additionalnames{Big\ Photo\ Example}
+\street{Beispielstrasse\ 42}
+\city{Winterthur}
+\zip{8400}
+\country{CH}
+\phone{+41 52 123 45 67}
+\email{max@example.ch}
+\photo{photo.png}
+
+\begin{document}
+	\drawcard
+\end{document}