可填写 PDF 的问题

Question

我正在尝试创建一个可写的 pdf 并从这里得到提示： 创建可填写的 PDF和KOMA-Script scrrttr2 所需的最低环境是什么？

我不明白如何安排好事情，以便那些必须使用它的人能够轻松直观地使用它。我使用的代码肯定不正确。你有什么建议吗？

\documentclass[%
  fontsize=11pt,
  parskip=half,%%
% fromalign=right,% right,locationright %% <============================
  firsthead=true, % <===================================================
  fromphone=on,%%
  fromfax=on,%%
  fromrule=aftername,%%
  fromemail=on,%%
  fromlogo=true,%%
  foldmarks=false,%%
  firstfoot=false,%%
  subject=titled,%%
  pagenumber=botright,%%
  headsepline=true, % <=================================================
  DIN
]{scrlttr2}

\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[italian,english]{babel}
\usepackage{url}
\usepackage{graphicx}
\usepackage{eurosym}
\usepackage{newcent}
\usepackage{lipsum}
\usepackage{selinput}
\usepackage{array}
\usepackage{hyperref}
\usepackage{xcolor}
\date{} %% elimina la data

\setkomafont{fromname}{\scshape \LARGE}
\setkomafont{backaddress}{\mdseries}

\makeatletter
\@setplength{firstheadvpos}{7mm}
\@setplength{firstfootvpos}{265mm}%%
\makeatother
\setkomavar{firsthead}{\raggedleft % <==================================
  \usekomavar{fromlogo}\\[+1cm]
  \rule{\textwidth}{0.5pt}\\
  \usekomavar{fromaddress}\\
  \usekomavar{fromphone}\\
  \usekomavar{fromfax}\\
  \usekomavar{fromemail}\\% <===========================================
}

\newdimen\longline
\longline=\textwidth\advance\longline-10cm

\def\LayoutTextField#1#2{#2} % override default in hyperref

\def\lbl#1{\hbox to 0.2cm{#1\strut}}%
\def\labelline#1#2{\lbl{#1}\vbox{\hbox{\TextField[name=#1,width=#2,bordercolor={white}, backgroundcolor={white}]{}}\kern1pt\hrule}}

\def\q#1{\hbox to \hsize{\labelline{#1}{\longline}}}
\def\qq#1{\hbox to \hsize{\labelline{#1}{\longlinee}}}


\begin{document}
%--------------------------------------
\setkomavar{fromaddress}{
    address\\
    Street}
\setkomavar{fromphone}{Tel: +99\,999\,99\,99\,99}
\setkomavar{fromemail}{mail:[email protected]}
\setkomavar{backaddressseparator}{ - }
\setkomavar{fromlogo}{\includegraphics[scale=.5]{logos}\vspace{-1.3cm}}

\setkomavar{subject}{
money refund request}

%------------------------------------------------------------------
\begin{letter}{}
\opening{}
%\def\DefaultHeightofText{12pt}
%
\begin{Form} %%%%%??????
 Il/La Sig. \q nato/a \q il \q residente in \q Via \q, C.F:\q, in qualità di....
\end{Form}

\begin{Form}
 \mbox{\CheckBox[width=10pt,height=10pt,bordercolor=0 0 0,name=pri]{\ignorespaces}} {legal tutor} \par\\
 \end{Form}

 \begin{Form}
 \mbox{\CheckBox[width=10pt,height=10pt,bordercolor=0 0 0,name=sec]{\ignorespaces}} {family of reference} \par\\
\end{Form}

\begin{Form}
\mbox{\CheckBox[width=10pt,height=10pt,bordercolor=0 0 0,name=ter]{\ignorespaces}} {The reimbursement of expenses will be made in the name of\q
resident in \q, CF:\q } \par\\
\end{Form}    

%  \opening{Dear Mr. xxxxx xxxxxxxxxx,}
% %
%  \lipsum[1-8]
% %
%  \closing{Regards,}
% \setkomavar*{enclseparator}{Enclosure(s)}
%
% \encl{example enclosure}
\end{letter}
\end{document}