Strange characters when using GetPageText

I have several PDF documents from the same source that I need to scan the contents to extract some basic text information.  On some of the documents (not all) I get strange characters.  For example (see value that follows Test Date):

Here you go:

Hi Ingo:

Thanks for looking into this.  The date I am referring to is not the Creation or Modification Date meta data for the PDF, but in the text content of the document.  In the header of the page you will notice 'Test Date: 10/3/2009'.  On my system if I open the document in Notepad/Notepad++ and search for 10/3/2009 no match is returned.  The test app I have  to demonstrate this result is simply:

...
PDFLibrary := TQuickPDF0717.Create;
UnlockResult := PDFLibrary.UnlockKey('123456789');
PDFLibrary.LoadFromFile('samp1.pdf');
PDFLibrary.SelectPage(2);
memo1.Lines.Add( PDFLibrary.GetPageText(0));
...

When I run the above code, a portion of what I see is:

�2008
Copyrigh
ANX 3.0

ANSAR  Medical

Patient: xxxxxxxxx
Weight: 145 lbs Height: 5 ft 6 in  Gender: Female Age: 64 DOB: 1/2/1945
ANS Medications:   
Other Medications & Symptoms: 

Test Date: 1�/3/2��9 Physician: xxxxxx

No. of Ectopic Beats: �

Could this be a system font or character set issue?  Since I am not familiar with the internal structure of pdf's I am not sure where to look next.

Thanks,
Mark

Yes, same result when I extract to Normal string.  Do you see this behavior also or is it just on my system?  What do you mean when you say ' You should forget it'?  The 'Test Date' in the page header is one of the pieces of Information I need to extract.

Thanks,
Mark

Hi Ingo:

I just want to be sure I am explaining the problem correctly.  I am not interested in the Creation/Modification date of the document.  I am interested in extracting text from the document content, where the text happens to be a date string.  My question is if you use the code:
      PDFLibrary.SelectPage(2);
      memo1.Lines.Add( PDFLibrary.GetPageText(0));
on the sample pdf document I uploaded do you see the strange characters I reported or do you see 'normal' text?  I have run the sample app on 3 machines now (Win XP and Win 7) with the same result.

Thanks again for your help.

Mark

Hi:

Thanks.  Would it be possible for you to upload your sample app for me to try to see if it is my code or my system(s).  The code is so simple I don't see how this could be it, but not sure where else to look.

Thanks,
Mark