insert a pdf in latex code example

Example: latex include pdf

\usepackage{pdfpages}

%To include all the pages in the PDF file:
%[pages=-] includes the whole file, range can be defined by [pages= 2-6]
\includepdf[pages=-]{myfile.pdf}

%To include just the first page of a PDF:
\includepdf[pages={1}]{myfile.pdf}