Have you ever noticed that some pictures look clear on the computer but become blurry when you print them? It's because of the type of file you're using. There are two main types of files used for printing: raster and vector.
Raster images are made up of tiny squares called pixels, just like coloring a picture with small dots. Raster files are great for photographs and images with lots of detail, but when you try to make them bigger, they become blurry and pixelated.
Vector images, on the other hand, are made up of math equations that describe the shapes and lines in the picture. This means that you can make them any size you want without losing any quality. It's like drawing a picture with a pencil, but instead of having to redraw it on a bigger piece of paper, you can just stretch it out and it stays clear.
If you're printing photographs or images with lots of details, use a raster file like JPEG or PNG, but make sure it's a high-resolution image (at least 300 dpi). For logos or simple graphics, use a vector file like EPS or AI. They can be resized without losing any clarity or sharpness.
In conclusion, raster images are made up of pixels and are good for complex images, while vector images are made up of math equations and are perfect for simple graphics. So, when you're printing something, make sure to choose the right file type to get the best results!