Low-quality PDF files from Solidworks Composer

Hello

I create a PDF file from my Composer views. But the quality of my PDFs is very bad, as if my texts had become images.

Do you have a solution to have good quality PDFs?

Thank you for your answer. 

Hello

Do you make your PDF with save-under or with a printer (PDFcreator...)?

I tried several solutions:

Publish > PDF

or

Print > PDFcreator

The 2 give me the same result, a mediocre image in quality, as if it took a poor quality photo of the view.