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If you mean the text in the TeXworks _editor_ window, the default
font size is under Edit > Preferences > Editor tab. Or it
can be changed only in the current document at Format > Font<br>
<br>
If you mean the font size on the _output_ pdf, it would be the same
in _any_ version of LaTeX, whether pdf output or dvi, and whether
TeXworks or any other text editor. <br>
<br>
The basic place is the fontsize option in your \documentclass
command. The original classes (letter, article, report, and
book) allow 10pt, 11pt, and 12pt. Originally, other sizes were
available through the use of \large or \Large or \small, and so on.
There are newer document classes (like memoir) that allow more sizes
directly specified. There is also the newer fontspec package. You
should have documentation for all of this in your TeX
installation. Or search for "introduction to LaTeX" and you willl
find many resources.<br>
<br>
Charles Nix<br>
<br>
<div class="moz-cite-prefix">On 11/13/18 5:41 PM, Jane wrote:<br>
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<blockquote type="cite" cite="mid:MkArgreEZLwu1MkAugvxpi">
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<p class="MsoNormal">Please tell me how to change the font size
of the main text on a pdf LaTex document. Thank you.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">----- configuration info -----</p>
<p class="MsoNormal">TeXworks version : 0.6.2r.7ecce17
(travis-ci)</p>
<p class="MsoNormal">Install location : C:/Program Files
(x86)/TeXworks/TeXworks.exe</p>
<p class="MsoNormal">Library path : C:/Users/janes/TeXworks\</p>
<p class="MsoNormal">pdfTeX location : not found</p>
<p class="MsoNormal">Operating system : Windows 10, 64-bit</p>
<p class="MsoNormal">Qt version : 5.8.0 (build) / 5.8.0
(runtime)</p>
<p class="MsoNormal">------------------------------</p>
<p class="MsoNormal">Sent from <a
href="https://go.microsoft.com/fwlink/?LinkId=550986"
moz-do-not-send="true">Mail</a> for Windows 10</p>
<p class="MsoNormal"><o:p> </o:p></p>
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