Can an EPS-file with text contain non-vectorized fonts? (meaning that the receiver needs to have the fonts in question installed) or are fonts always vectorized when I save a file as EPS?
An EPS is merely a file wrapper. What's in that wrapper can be a mix of either raster or vector. It's also possible that an EPS contains 100% raster data and no vector data at all... or that it contains 100% vector data and no raster data at all.
Fonts, typically are vector, and when contained in a file which is then saved to a format that supports vector data (EPS, PDF, PSD, AI, etc) they are:
- either embedded as live vector type (you can't extract the actual fonts from an EPS, or any file really. The data is embedded, not the actual operating system fonts.)
- outlined, creating vector paths (but without live type hinting and other features)
- possibly rasterized due to file appearances
Any one of those three is entirely possible with an EPS. The only way to know is to open the EPS after it's been saved to find out what things look like.