QR code with logo in LaTeX

qrcode.tex

\documentclass[11pt]{article}

\usepackage{qrcodewithlogo}

\begin{document}

% basic usage
\qrcodeWithLogo[width=5cm, logo=assets/arxiv.png]{https://arxiv.org/abs/1503.03585}

% adjust size and padding of logo, error correction of QR code
\qrcodeWithLogo[width=5cm, padding=0, scale=0.4, level=H, logo=assets/arxiv.png]{https://arxiv.org/abs/1503.03585}

% also works without logo
\qrcodeWithLogo[width=5cm]{https://arxiv.org/abs/2512.10858}

\end{document}

qrcodewithlogo.sty

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{qrcodewithlogo}[2026/04/17 v1.0 QR codes with centered logo overlay]

\RequirePackage{tikz}
\RequirePackage{graphicx}
\RequirePackage{qrcode}
\RequirePackage{xstring}
\usetikzlibrary{calc}

\makeatletter

\def\qrcwl@defcap#1#2#3#4#5{%
  \expandafter\def\csname qrcwl@cap@#1@L\endcsname{#2}%
  \expandafter\def\csname qrcwl@cap@#1@M\endcsname{#3}%
  \expandafter\def\csname qrcwl@cap@#1@Q\endcsname{#4}%
  \expandafter\def\csname qrcwl@cap@#1@H\endcsname{#5}%
}
\qrcwl@defcap{1}{17}{14}{11}{7}
\qrcwl@defcap{2}{32}{26}{20}{14}
\qrcwl@defcap{3}{53}{42}{32}{24}
\qrcwl@defcap{4}{78}{62}{46}{34}
\qrcwl@defcap{5}{106}{84}{60}{44}
\qrcwl@defcap{6}{134}{106}{74}{58}
\qrcwl@defcap{7}{154}{122}{86}{64}
\qrcwl@defcap{8}{192}{152}{108}{84}
\qrcwl@defcap{9}{230}{180}{130}{98}
\qrcwl@defcap{10}{271}{213}{151}{119}
\qrcwl@defcap{11}{321}{251}{177}{137}
\qrcwl@defcap{12}{367}{287}{203}{155}
\qrcwl@defcap{13}{425}{331}{241}{177}
\qrcwl@defcap{14}{458}{362}{258}{194}
\qrcwl@defcap{15}{520}{412}{292}{220}
\qrcwl@defcap{16}{586}{450}{322}{250}
\qrcwl@defcap{17}{644}{504}{364}{280}
\qrcwl@defcap{18}{718}{560}{394}{310}
\qrcwl@defcap{19}{792}{624}{442}{338}
\qrcwl@defcap{20}{858}{666}{482}{382}
\qrcwl@defcap{21}{929}{711}{509}{403}
\qrcwl@defcap{22}{1003}{779}{565}{439}
\qrcwl@defcap{23}{1091}{857}{611}{461}
\qrcwl@defcap{24}{1171}{911}{661}{511}
\qrcwl@defcap{25}{1273}{997}{715}{535}
\qrcwl@defcap{26}{1367}{1059}{751}{593}
\qrcwl@defcap{27}{1465}{1125}{805}{625}
\qrcwl@defcap{28}{1528}{1190}{868}{658}
\qrcwl@defcap{29}{1628}{1264}{908}{698}
\qrcwl@defcap{30}{1732}{1370}{982}{742}
\qrcwl@defcap{31}{1840}{1452}{1030}{790}
\qrcwl@defcap{32}{1952}{1538}{1112}{842}
\qrcwl@defcap{33}{2068}{1628}{1168}{898}
\qrcwl@defcap{34}{2188}{1722}{1228}{958}
\qrcwl@defcap{35}{2303}{1809}{1283}{983}
\qrcwl@defcap{36}{2431}{1911}{1351}{1051}
\qrcwl@defcap{37}{2563}{1989}{1423}{1093}
\qrcwl@defcap{38}{2699}{2099}{1499}{1139}
\qrcwl@defcap{39}{2809}{2213}{1579}{1219}
\qrcwl@defcap{40}{2953}{2331}{1663}{1273}

\newcount\qrcwl@vcount

\newcommand{\qrcwl@pickversion}[2]{%
  \qrcwl@vcount=1\relax
  \def\qrcwl@found{0}%
  \loop
    \ifnum\qrcwl@found=0
      \edef\qrcwl@curcap{\csname qrcwl@cap@\the\qrcwl@vcount @#2\endcsname}%
      \ifnum\qrcwl@curcap<#1\relax\else
        \edef\qrcwl@version{\the\qrcwl@vcount}%
        \def\qrcwl@found{1}%
      \fi
    \fi
    \advance\qrcwl@vcount by 1\relax
  \ifnum\qrcwl@vcount<41
  \repeat
  \ifnum\qrcwl@found=0
    \PackageWarning{qrcodewithlogo}{%
      Content (#1 bytes) exceeds V40 at level #2; falling back to V40}%
    \def\qrcwl@version{40}%
  \fi
}

\pgfkeys{
  /qrcwl/.is family, /qrcwl/.cd,
  width/.store in   = \qrcwl@width,
  logo/.store in    = \qrcwl@logo,
  level/.store in   = \qrcwl@level,
  scale/.store in   = \qrcwl@scale,
  padding/.store in = \qrcwl@padding,
  version/.store in = \qrcwl@version,
  width   = 3cm,        % physical size of the QR code
  logo    = ,           % (optional) path to the logo to be added in the center.
  level   = Q,          % error correction level. set to: L, M, Q, H
  scale   = 0.275,      % (target) size of the logo. the actual size is quantized to the QR code grid, which depends on its version.
  padding = 0.175,        % relative gap; logo = backdrop / (1 + padding)
  version = 0,          % used for sizing the logo; does not affect the version of the actual QR code (version = how many pixels the QR code has). Set to 0 for best-effort version detection, manually set this to the correct version in case that fails.
}

\newlength{\qrcwl@qrlen}
\newlength{\qrcwl@logolen}

\newcommand{\qrcodeWithLogo}[2][]{%
  \begingroup
    \pgfkeys{/qrcwl/.cd, #1}%
    \ifnum\qrcwl@version=0\relax
      \StrLen{#2}[\qrcwl@bytes]%
      \qrcwl@pickversion{\qrcwl@bytes}{\qrcwl@level}%
    \fi
    \setlength{\qrcwl@qrlen}{\qrcwl@width}%
    \begin{tikzpicture}
      \node[inner sep=0] (qr)
        {\qrcode[height=\qrcwl@qrlen,
                 level=\qrcwl@level,
                 version=\qrcwl@version]{#2}};
      \ifx\qrcwl@logo\@empty\else
        \pgfmathtruncatemacro{\qrcwl@N}{4*\qrcwl@version + 17}%
        % k = smallest odd integer >= (1 + padding) * scale * N
        \pgfmathtruncatemacro{\qrcwl@kceil}{%
          ceil((1 + \qrcwl@padding) * \qrcwl@scale * \qrcwl@N)}%
        \pgfmathtruncatemacro{\qrcwl@k}{%
          \qrcwl@kceil + mod(\qrcwl@kceil + \qrcwl@N, 2)}%
        % Backdrop corner offset with 0.001 bleed outward.
        \pgfmathsetmacro{\qrcwl@off}{%
          (\qrcwl@N - \qrcwl@k) / (2*\qrcwl@N) - 0.001}%
        % Logo scaled to fit the quantized crop, with relative padding.
        \pgfmathsetmacro{\qrcwl@logofrac}{%
          \qrcwl@k / (\qrcwl@N * (1 + \qrcwl@padding))}%
        \setlength{\qrcwl@logolen}{\qrcwl@logofrac\qrcwl@qrlen}%
        \fill[white]
          ($(qr.south west)!\qrcwl@off!(qr.north east)$)
          rectangle
          ($(qr.north east)!\qrcwl@off!(qr.south west)$);
        \node at (qr.center)
          {\includegraphics[width=\qrcwl@logolen,
                            height=\qrcwl@logolen,
                            keepaspectratio]{\qrcwl@logo}};
      \fi
    \end{tikzpicture}%
  \endgroup
}

\makeatother
\endinput