PDF Creator will convert source documents to PDF files.
The conversion uses a virtual printer, and the output pdf file will depend on the input data.
You have not said what your input data is. If the input file is an image such as a scanned TIFF file the output will be a pdf file consisting of an image, because PDF Creator is not an OCR (optical character recognition program).
If your source is a scanned image file, then use Nuance's OmniPage program (or another OCR program) to do the conversion to text and save as a pdf file.