Error including image in Latex [closed]

Question

I am getting the following error while compiling my Latex File :

! LaTeX Error: Cannot determine size of graphic in tree.jpg (no BoundingBox).

Why do I get this error ? What has this to do with an .eps file ?

In fact, I could compile it fine with MacTex on my machine. But when I submit it online to a scientific journal for publication, it compiles it on the server and sends me the resultant PDF which has all these errors that prevent it from compiling.

I am using the following syntax for including the images :

\begin{figure}[!h]     \begin{center}         \scalebox{0.45}{             \includegraphics{tree.jpg}}     \end{center}             \caption{\small A sample}             \label{tree} \end{figure} 

What should I do ? Could it be that their server is using an old compiler ?

UPDATE : It finally worked. I converted the first image to PDF and the compilation happened perfectly. I guess it used the bounding box value from that PDF and applied it to all images.

Answer 1

To include png and jpg, you need to specify the Bounding Box explicitly.

\includegraphics[bb=0 0 1280 960]{images/some_image.png} 

Where 1280 and 960 are respectively width and height.

Answer 2

I've had the same problems including jpegs in LaTeX. The engine isn't really built to gather all the necessary size and scale information from JPGs. It is often better to take the JPEG and convert it into a PDF (on a mac) or EPS (on a PC). GraphicsConvertor on a mac will do that for you easily. Whereas a PDF includes DPI and size, a JPEG has only a size in terms of pixels.

( I know this is not the answer you wanted, but it's probably better to give them EPS/PDF that they can use than to worry about what happens when they try to scale your JPG).