Occasionally, you will probably need to combine a set of PDF files into a single PDF file…
LaTeX can do it – But it can be a pain to get the correct appearance and find the correct API parameters for scaling, margins, number of pages per PDF, etc. Below is a quick snippet that should just work.
LaTeX Code:
\documentclass[]{article}
\usepackage{pdfpages}
\begin{document}
\includepdf[pages={1-},scale=1]{1.pdf}
\includepdf[pages={1-},scale=1]{2.pdf}
\includepdf[pages={1-},scale=1]{3.pdf}
% -- add more pdf files here --
\end{document}
If you don’t have a LaTeX compiler, you can probably just get away with https://www.pdfmerge.com instead, if < 15 mb.
hth.
