We can use the titling LaTeX package to alter our title block to include an image. Below is a full example that shows how to add the R logo (logo.jpg) to the title page. The image can be of any format that LaTeX supports (e.g., jpg, png, or pdf).

---
title: Adding a Logo to LaTeX Title
author: Michael Harper
date: December 7th, 2018
output: pdf_document
header-includes:
  - \usepackage{titling}
  - \pretitle{\begin{center}
    \includegraphics[width=2in,height=2in]{logo.jpg}\LARGE\\}
  - \posttitle{\end{center}}
---
<!-- Optionally include a page break. This will force the start
of the document to the second page -->
\newpage
This is your report.
```{r, include=FALSE}
# copy the R logo to the current directory
file.copy(file.path(R.home("doc"), "html", "logo.jpg"), '.')
```

An example output is shown in Figure 6.1.

An alternative method that does not require a special LaTeX package (titling) is to just insert the image in the title field using the Markdown syntax. For example:

title: |
  ![](logo.jpg){width=1in}  
  Adding a Logo to LaTeX Title

In this case, you will not need the header-includes field in the YAML frontmatter in the first example. Please note that although you cannot see them, there are two trailing spaces after ![](logo.jpg){width=1in}, which means a line break in Markdown (see Section 4.12). Without the line break, the image and the title would be on the same line, which may not be what you desire.