Recently I found this document: https://public.websites.umich.edu/~hlm/nzm/clintman.pdf (sorry to refer to a link but I assure you that its safe)
My question is if someone would help me to make a little template that generates the same PDF like in the link, the content does not matter but for the sake of this question we can use some of the text in the document.
I tried my best to create a template and got this
\documentclass[12pt]{report}
\usepackage[margin=1in]{geometry}
\usepackage[dvipsnames]{xcolor}
\usepackage{amsmath,amsthm,amssymb,scrextend}
\usepackage[T4]{fontenc}
\usepackage{pgfplots}
\usepackage{tikz}
\usepackage{epsfig}
\usetikzlibrary{calc}
\usetikzlibrary{arrows}
\usepackage[framemethod=TikZ]{mdframed}
\usepackage{mathrsfs}
\usetikzlibrary{arrows}
\usepackage{tikz-cd}
\pgfplotsset{compat=1.18}
\font\BF cmbx30 scaled \magstep2
\begin{document}
\begin{center}
\Huge \textbf{Hallo}
\end{center}
The program FacTab produces a table of least prime divisors of odd numbers, up to $10^9$. The values are calculated by dividing small primes into the numbers in the desired range, until the only numbers for which a least prime divisor has not been found are prime. Let $p$ be a given prime number. The least composite integer $n$ such that $p$ is the least prime factor of $n$ is $n=p^2$. (In this connection, recall Problem 24. on p. 30 of NZM.) Thus if one is to prepare a table of least prime factors of integers in an interval $[a, b]$, then it is useful to have on hand a table of all primes $p \leq b^{1 / 2}$. In the case of FacTab, the intervals considered are of the form $[10 N, 10 N+200]$ with $N \leq 10^8$. Since 31607 and 31627 are consecutive primes, and since $$31607^2<10^9+200<31627^2$$
\end{document}
If you compare the output of this document with the pdf, you can see that the letters in clintman.pdf are thicker and like a typesetter font.
Maybe someone knows how they wrote their tex-file and can help me, I really like this old LaTeX style. Just using T4 gives thin letters but its not the same like in the doc.
Hint: I noticed that there are TEX files on the website https://public.websites.umich.edu/~hlm/nzm/nzmsupp.html and they have this in their code
\input amstex
\documentstyle{math575}
\vsize 8.5truein
\font\BF cmbx10 scaled \magstep2
Sadly the tex files cannot be compiled in Overleaf.
Original File
My File:
PS: More examples of this type of letters are here:


\documentstyleis what they had before there was\documentclass. The font setup there predates the NFSS. Basically, those files are for LaTeX before 2e.\font\BF cmbx10 scaled \magstep2is setting up a standard, fixed TeX font,\BF, which will use the fontcmbx10scaled to enlarge it. That is, it will use a scaled-up Computer Modern bold extended in 10pt. This will tend to make the font thicker because smaller sized fonts are typically thicker than the same points at higher pt sizes (where optical sizes are provided). This isn't the way to do things in current LaTeX. – cfr Mar 21 '24 at 05:07