How to keep a full word?

[dbarobin]

When I covert pdf to html with pdf2htmlEX, the same words display diff.

Such as XXXXXXXX, the first style:

<span class="_ _0"></span> ~<span class="_ _1"></span>X<span class="_ _0">\
</span>X<span class="_ _0"></span>X<span class="_ _1"></span>XX<span class="_ _2">\
</span>X<span class="_ _0"></span>X<span class="_ _0"></span>X<span class="_ _2">\
</span>~<span class="_ _3"></span>~<span class="_ _1"></span>X<span class="_ _0">\
</span>X<span class="_ _0"></span>X<span class="_ _2"></span>X<span class="_ _0">\
</span>X<span class="_ _2"></span>X<span class="_ _0"></span>X<span class="_ _0">\
</span>X<span class="_ _2"></span>~

The second style:

~XXXXXXXX~

How I keep "~XXXXXXXX~" a full word with splitting?