EPS is a graphic file type in which vector data can be saved. EPS files can be reduced or enlarged without loss of quality. The abbreviation EPS means Encapsulated PostScript. EPS is structured in vectors.
An EPS file is often needed for printing. This is useful for printers. For example, a printer can reduce or enlarge a logo without loss of sharpness. Printed matter is always razor-sharp with EPS.
If an EPS is not sharp, it is actually a pixel file that was saved as EPS. This only changes the file type. The structure of this file remains in pixels instead of vectors.
For this reason, the pixels are to be converted into vectors.