Spaces, numbers and some letters not display correctly

[Marco Siefert (KUTTIG)]

Hello,

I have a problem displaying a PDF with pdf box.
Many characters in the attached PDF are displayed wrong as you can see 
in the result.png.
Especially numbers and spaces are not displayed correctly. Sometimes I 
can see
the numbers, sometimes not.  I could not find out the reason yet.
Perhaps someone already had this problem and can help me with that?!
To display the PDF I use the following code:

       PDDocument document = parseDocument(file);
       List pages = document.getDocumentCatalog().getAllPages();
       PDPage page = (PDPage)pages.get(0);
       Image pageImage = page.convertToImage();
       ImageIcon imageicon = new ImageIcon(pageImage);
       documentPanel.add(new JLabel(imageicon));

The problem occurs when I convert the PDF to an image but also when I show
it in a PDPagePanel.

Thank you very much
Marco Siefert