I am trying to insert a pdf image into an r markdown file. I know it is possible to insert jpg or png images. I was just wondering if it is also possible to insert a pdf image.
In relation to the comment of the best answer, there is a way to use the second option, and the output not come out tiny.
Use the following syntax below with the height being a large number. Having text in the brackets is necessary for it to work.
![Alt](./file.pdf){width=100% height=400}