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Although I am new to latex, I noticed most of the authors are using tikz related packages to produce the figures.

Why can't we use EPS or PDF format? I hope EPS or PDF are easy to produce the figures. Please suggest.

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    EPS or PDF are formats of the produced files when you use TeX/LaTeX packages like Tikz to draw what you need to. – enthu Jan 13 '20 at 07:21
  • The fonts of annotations in the tikzpicture match the one of the ambient document, and you can easily add equations/math content in the nodes. Note that your question is almost completely identical to https://tex.stackexchange.com/q/459883, where you can find more reasons in the answers. –  Jan 13 '20 at 07:32
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    EPS and PDF are file formats for representing images. They can not produce any image. However, in LaTeX you can use any image in those formats. Just include them with \includegraphics{<image file name>}. – Zarko Jan 13 '20 at 08:14

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An EPS file or a PDF file are figures created by some software. They create nothing by themselves.

On the other hand, with TikZ you can create pictures with commands which are part of the .tex file that you are working with.

José Carlos Santos
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