[Tex/LaTex] change the size of the text when \input .pdf_tex file generated by Inkscape

inkscapesize;

I am trying to use inkscape to draw mathematical figures.
Thre are example codes given in Inkscape manual and to include the PDF file with LaTex overlay (which is generated by file -> save as PDF and choose the option omit text in PDF and generate LaTex file) 

\documentclass[12pt]{article}
\usepackage{graphicx}
\usepackage{color}
\begin{document}

\Huge
\def\svgwidth{3.333in}
\input{FileExportText_LaTeX.pdf_tex}

\end{document}

and it works.

However, the size of the math expressions in the picture is usually to small or too large. In this document How to include an SVG image in LaTex , it says "Font type and size do not matter and will not be exported to LATEX". Therefore, I am wondering how to change the text size of every specific math expression generated by Inkscape?

My goal is to draw figures like the great ones in Visual Complex Analysis
enter image description here. Maybe there is other choice than Inkscape?

Best Answer

You can add your desired font size to a specific math expression in the FileExportText_LaTeX.pdf_tex file. For example change

\put(0.11,0.35603788){\makebox(0,0)[r]{\smash{10}}}%

to

\put(0.11,0.35603788){\makebox(0,0)[r]{\smash{\large 10}}}%

Or to get an homogeneous look use the same font size for all the text in the image.

{
   \fontsize{9pt}{11pt}\selectfont% or whatever fontsize you like
   \def\svgwidth{3.333in}
   \input{FileExportText_LaTeX.pdf_tex}
}
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