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up vote 1 down vote favorite 1 I would like to add on my beamer slides something that simulate as if I had been drawing a comment by hand. This would circle, come on top of text or formulas, and allows to insert text. Ideally, I could use this with the beamer overlay specification, i.e. add it only in a second step. See example below. Is there anything that could bring me somewhere close to that? documentclass[english]{beamer} usepackage{babel} begin{document} begin{frame}{Make Titles Informative. } Iintroduce here two theorems: begin{theorem} Algebra 1+2=3 end{theorem} begin{corollary} 2+1=3 end{corollary} end{frame} end{document} Thanks! tikz-pgf beamer annotations share | improve this questio