# Removing the spaces between words

Is there any way to remove spaces from in between the words in a text? Something like

\RemoveSpaces{This is   my    sentence.}


which will be converted to

Thisismysentence.

• Why would you want to do this? Mar 6 '13 at 15:48
• As a deterrent against copy and pasting the real text from the resulting searchable PDF file.
– Reza
Mar 6 '13 at 20:18

\makeatletter
\def\RemoveSpaces#1{\zap@space#1 \@empty}
\makeatother

• I didn't believe it, but ... it works!
– yo'
Dec 18 '12 at 14:53

A different approach, that ensures correct hyphenation and line breaks between words is

\newcommand{\RemoveSpaces}[1]{%
\begingroup
\spaceskip=1sp
\xspaceskip=1sp
#1%
\endgroup}


This reduces the interword space to the minimum possible positive value (that's not visible to the human eye), but still paragraphs will be built as usual. Complete example:

\documentclass{article}
\usepackage[latin]{babel}
\usepackage{ragged2e}
\usepackage{lipsum}
\def\RemoveSpaces#1{%
\begingroup
\spaceskip1sp
\xspaceskip1sp
#1%
\endgroup}

\begin{document}
\parbox{5cm}{\RaggedRight
\RemoveSpaces{\lipsum[2]}
}
\end{document}


a solution with lualatex for all spaces between words in a paragraph. Kerning and discretionaries are not affected.

\documentclass[english]{article}
\usepackage{babel,libertine,luacode,blindtext}
\begin{luacode*}
function rSpace(List)
for line in node.traverse_id(0,List) do -- go through all lines
for s in node.traverse_id(10,line.head) do node.remove(line.head,s) end
end
return List
end
\end{luacode*}
\begin{document}
\blindtext \par
\blindtext \par

\end{document}


This can handle macros in the argument, but it will not remove spaces from groups within the argument (as in argument lists within the argument to \RemoveSpaces)

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage{listofitems}
\begin{document}
\RemoveSpaces{This is   my    sentence.}

\RemoveSpaces{This is   my  \detokenize{\  textit {italic}}  sentence.}
\end{document}


Here is a version that can reach into the groups within the argument. However, the restriction that goes along with this ability is that the argument must now be expandable.

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage{listofitems}
\newcommand\RemoveSpaces[1]%