Without seeing the file and EXIF data (to understand more about the camera settings), it may be hard to be able to give much help, I fear. You might also try posting in the Image improvement forum or the post-processing forum.
I need some technical help. I recently received my em5 and have been playing around with it. So I was very disappointed when I downloaded the photos onto my computer and found that all were only 5.5 inches wide. I was using the L F (large, fine) setting and the pixel width is around 4000. But each and every photo is only 5 ish inches. How do I change the setting so the photos are larger besides the LF setting? Is this a computer glitch, SD card malfunction, or a camera error?
It is likely that there is nothing wrong. The number of pixels will tell you the amount of information the camera captured. Large, fine should give you 4608x3465 pixels. "Picture size" in inches is more likely derived from whatever image editing software you are using and really only matters if you are trying to print the image. You should be able to tell the software how many pixels you want per inch to adjust the actual printed image size. There should be a way, in the software, of adjusting the image size based on inches or a setting to change "pixels per inch". How are you downloading to your computer? What image editing software are you using?