Latex + amsart + times font size

Question

I am writing a pdf document in LaTeX using package amsart. The specifications for the document require that it be in Times New Roman font and 11 point font size.

I have therefore included:

\documentclass[11pt]{amsart}
\usepackage{times}

at the start of my document.

However, I was told by someone on the receiving end that when they opened the pdf in Adobe Acrobat Pro and looked at the "edit" feature, Adobe claims that the font size is "10.91".

Can anyone give me some advice on fixing this? (Let us take for granted that I understand the silliness of insisting that there is a meaningful difference between 10.91 and 11 point font and focus on the technical issue.)

Thanks.

Answer 1

You can use the fontsize package.

If I do

\documentclass[11pt]{amsart} % but any class is the same
\usepackage[fontsize=11bp]{fontsize}
\usepackage{newtxtext,newtxmath}

\begin{document}

abc def $123$ 123

\expandafter\show\the\font

\end{document}

I get on the console

\T1/ntxtlf/m/n/11.04124=select font ntx-Regular-tlf-t1 at 11.04124pt

and 11.04124pt is precisely 11bp (that is, what Adobe thinks 11 points is).

I also tested, with XeLaTeX,

\documentclass[11pt]{amsart} % but any class is the same
\usepackage[fontsize=11bp]{fontsize}
\usepackage{unicode-math}

\setmainfont{Times New Roman}
\setmathfont{STIX Two Math}

\begin{document}

abc def $123$ 123

\expandafter\show\the\font

\end{document}

and the console reports

\TU/TimesNewRoman(0)/m/n/11.04124=select font "Times New Roman/OT:script=latn
;language=dflt;mapping=tex-text;" at 11.04124pt.