Hi jörgs38018631,
I'm sorry that your conversion to Word didn't turn out as you'd expected. Can you tell me a bit more about the PDF that you're converting? The quality of the conversion really depends on the quality of the PDF that you start with. See Will Adobe ExportPDF convert both text and form... | Adobe Community for more information.
If the PDF didn't start out as a scanned document, you may have better luck if you convert the file with OCR disabled, as described in this document: How to disable Optical Character Recognition (O... | Adobe Community.
Best,
Sara