Hiding informations

Question

Good morning, I'm trying to avoid informations from my CV. In particular, I'd like to have a method to substitute my personal address with a black box of the same size of the text. I'm currently using \phantom , and I'd like to know whether there exists a way to have a black space instead of a blank space.

Answer 1

Here is a better way to do it:

This is what you get, after copy and paste from the pdf:

To censor it .
To blackout it, .

For more alternatives see topic security at ctan, where only luacensor may be of interest.

\documentclass[10pt, a4paper]{article}
\usepackage{censor}
\begin{document}
To censor it \censor{censor it}.\
To blackout it, \blackout{black it out}.
\end{document}

Answer 2

Something like that

\newlength{\myboxw}
\newlength{\myboxh}
\newcommand{\blackphantom}[1]%
{\settowidth{\myboxw}{#1}%
\settoheight{\myboxh}{#1}%
\rule{\myboxw}{\myboxh}}
\blackphantom{Hidden Text}

would work, but only horizontally (i.e. does not support multi-lines content or text with wrapping/hyphenation). (I think \phantom has the same behavior, though...)

Answer 3

Here's a way to do it:

• use packages xcolor and soul to highlight text via \hl{}
• it visually overwrites it

However, if you'd mark, copy and paste the black part into an editor, you still can read it: strike-out.

\documentclass[10pt, a4paper]{article}
\usepackage{xcolor, soul}
\begin{document}
1: Whatever you want to \hl{highlight}.\
\sethlcolor{black}
2: Whatever you want to strike-\hl{out}.\
3: Whatever you want to \hl{highlight}.\% uses current color
\sethlcolor{yellow}% switch "back"
4: Whatever you want to \hl{highlight}.
\end{document}

P.S.: This may still be an option, as not all users of pdf files even know, less try, they can mark and copy text selections ...

Answer 4

A typesetting-based solution using Lua code can be used to define a custom Open Type font feature which, when switched on for a font, allows the font to replace one glyph (set) with another (set), including ligatures.

And:

The more traditional "censor's ink block":

Requires LuaLaTeX.

MWE

\documentclass{article}
\usepackage{fontspec}
\usepackage{lipsum}
\newcommand\anycxchar{uniEBA3}
\newcommand\anycxcharb{uni2580}
\newcommand\anycxcharc{circlecopyrt}
\directlua {
luaotfload.add_colorscheme("cxscheme",
{
["FF200080"] = {"\anycxchar"},
})
}
\directlua {
luaotfload.add_colorscheme("cyscheme",
{
["FF20A090"] = {"\anycxcharb"},
})
}
\directlua {
luaotfload.add_colorscheme("czscheme",
{
["FF0000"] = {"T_h"},
})
}
\directlua{
fonts.handlers.otf.addfeature {
    name = "anycx",
    type = "substitution",
    data = {
        ["a"] = "\anycxchar",
        ["b"] = "\anycxchar",
        ["c"] = "\anycxchar",
        ["d"] = "\anycxchar",
        ["e"] = "\anycxchar",
        ["f"] = "\anycxchar",
        ["g"] = "\anycxchar",
        ["h"] = "\anycxchar",
        ["i"] = "\anycxchar",
        ["j"] = "\anycxchar",
        ["k"] = "\anycxchar",
        ["l"] = "\anycxchar",
        ["m"] = "\anycxchar",
        ["n"] = "\anycxchar",
        ["o"] = "\anycxchar",
        ["p"] = "\anycxchar",
        ["q"] = "\anycxchar",
        ["r"] = "\anycxchar",
        ["s"] = "\anycxchar",
        ["t"] = "\anycxchar",
        ["u"] = "\anycxchar",
        ["v"] = "\anycxchar",
        ["w"] = "\anycxchar",
        ["x"] = "\anycxchar",
        ["y"] = "\anycxchar",
        ["z"] = "\anycxchar",
        ["0"] = "\anycxchar",
        ["1"] = "\anycxchar",
        ["2"] = "\anycxchar",
        ["3"] = "\anycxchar",
        ["4"] = "\anycxchar",
        ["5"] = "\anycxchar",
        ["6"] = "\anycxchar",
        ["7"] = "\anycxchar",
        ["8"] = "\anycxchar",
        ["9"] = "\anycxchar",
        ["r"] = "\anycxchar",
        [","] = "\anycxchar",
        ["."] = "\anycxchar",
        ["/"] = "\anycxchar",
        ["<"] = "\anycxchar",
        [">"] = "\anycxchar",
        ["?"] = "\anycxchar",
        }
    }
}
\directlua{
fonts.handlers.otf.addfeature {
    name = "anycy",
    type = "substitution",
    data = {
        ["hyphen"] = "\anycxcharb",
        ["a"] = "\anycxcharb",
        ["b"] = "\anycxcharb",
        ["c"] = "\anycxcharb",
        ["d"] = "\anycxcharb",
        ["e"] = "\anycxcharb",
        ["f"] = "\anycxcharb",
        ["g"] = "\anycxcharb",
        ["h"] = "\anycxcharb",
        ["i"] = "\anycxcharb",
        ["j"] = "\anycxcharb",
        ["k"] = "\anycxcharb",
        ["l"] = "\anycxcharb",
        ["m"] = "\anycxcharb",
        ["n"] = "\anycxcharb",
        ["o"] = "\anycxcharb",
        ["p"] = "\anycxcharb",
        ["q"] = "\anycxcharb",
        ["r"] = "\anycxcharb",
        ["s"] = "\anycxcharb",
        ["t"] = "\anycxcharb",
        ["u"] = "\anycxcharb",
        ["v"] = "\anycxcharb",
        ["w"] = "\anycxcharb",
        ["x"] = "\anycxcharb",
        ["y"] = "\anycxcharb",
        ["z"] = "\anycxcharb",
        ["0"] = "\anycxcharb",
        ["1"] = "\anycxcharb",
        ["2"] = "\anycxcharb",
        ["3"] = "\anycxcharb",
        ["4"] = "\anycxcharb",
        ["5"] = "\anycxcharb",
        ["6"] = "\anycxcharb",
        ["7"] = "\anycxcharb",
        ["8"] = "\anycxcharb",
        ["9"] = "\anycxcharb",
        [32] = "\anycxcharb",
        ["r"] = "\anycxcharb",
        [","] = "\anycxcharb",
        ["."] = "\anycxcharb",
        ["/"] = "\anycxcharb",
        ["<"] = "\anycxcharb",
        [">"] = "\anycxcharb",
        ["?"] = "\anycxcharb",
        }
    }
}
\directlua{
fonts.handlers.otf.addfeature {
    name = "anycz2",
    type = "substitution",
    data = {
        ["T_h"] = "\anycxcharc",
        }
}}
\directlua{
fonts.handlers.otf.addfeature {
    name = "anycz",
    type = "substitution",
    data = {
        ["hyphen"] = "\anycxcharc",
        ["a"] = "\anycxcharc",
        ["b"] = "\anycxcharc",
        ["c"] = "\anycxcharc",
        ["d"] = "\anycxcharc",
        ["e"] = "\anycxcharc",
        ["f"] = "\anycxcharc",
        ["g"] = "\anycxcharc",
        ["h"] = "\anycxcharc",
        ["i"] = "\anycxcharc",
        ["j"] = "\anycxcharc",
        ["k"] = "\anycxcharc",
        ["l"] = "\anycxcharc",
        ["m"] = "\anycxcharc",
        ["n"] = "\anycxcharc",
        ["o"] = "\anycxcharc",
        ["p"] = "\anycxcharc",
        ["q"] = "\anycxcharc",
        ["r"] = "\anycxcharc",
        ["s"] = "\anycxcharc",
        ["t"] = "\anycxcharc",
        ["u"] = "\anycxcharc",
        ["v"] = "\anycxcharc",
        ["w"] = "\anycxcharc",
        ["x"] = "\anycxcharc",
        ["y"] = "\anycxcharc",
        ["z"] = "\anycxcharc",
        ["0"] = "\anycxcharc",
        ["1"] = "\anycxcharc",
        ["2"] = "\anycxcharc",
        ["3"] = "\anycxcharc",
        ["4"] = "\anycxcharc",
        ["5"] = "\anycxcharc",
        ["6"] = "\anycxcharc",
        ["7"] = "\anycxcharc",
        ["8"] = "\anycxcharc",
        ["9"] = "\anycxcharc",
        [32] = "\anycxcharc",
        ["r"] = "\anycxcharc",
        [","] = "\anycxcharc",
        ["."] = "\anycxcharc",
        ["/"] = "\anycxcharc",
        ["<"] = "\anycxcharc",
        [">"] = "\anycxcharc",
        ["?"] = "\anycxcharc",
        }
    }
}
\newfontfamily\fany{Clara}[
RawFeature=+anycx,
Colour=cxscheme,
]
\newfontfamily\fancy{FiraMath}[
RawFeature=+anycy,
Colour=cyscheme,
]
\newfontfamily\fancz{AntykwaTorunska}[
RawFeature=+anycz,
]
\newfontfamily\fancza{AntykwaTorunska}[
Ligatures=TeX,
Colour=czscheme,
]
\newfontfamily\fanczb{AntykwaTorunska}[
RawFeature=+anycz;+anycz2,
]
\begin{document}
abcde fghij klmnop qrstu wxyz 1234567890 ,./<>?
\fany
abcde fghij klmnop qrstu wxyz 1234567890 ,./<>?
\lipsum
\newpage
\fancy
abcde fghij klmnop qrstu wxyz 1234567890 ,./<>?
\lipsum
\newpage
\normalfont
Q: What is the question to $1+1=1$?
A: {\fancz The cat sat on the mat.}
\fancza ``Th'' is a ligature: \fanczb The cat sat on the mat.
\end{document}