Latex 数字加粗后变宽 Latex bold without increasing the length of the text

Add the following code at the beginning of the article

ewsaveboxCBox
def	extBF#1{sboxCBox{#1}
esizebox{wdCBox}{htCBox}{	extbf{#1}}}

Then ：

	extBF{foobarbaz}

Example：

documentclass{article}
usepackage{graphicx}

ewsaveboxCBox
def	extBF#1{sboxCBox{#1}
esizebox{wdCBox}{htCBox}{	extbf{#1}}}
parindent=0pt
egin{document}
foobarbaz y\
	extbf{foobarbaz} y\
	extBF{foobarbaz} y

end{document}

参考:

https://tex.stackexchange.com/questions/23678/textbftext-without-increasing-the-length-of-the-text

https://tex.stackexchange.com/questions/399859/fake-semibold-bold-without-increasing-the-length-of-the-text