If you have Adobe Reader and fills out a form you might see the message below. This is what Adobe Reader 8.0 shows.
Then if you try to Save a Copy you will get this message.
Save a Blank Copy of this Form
Data typed into this form will not be saved. Adobe Reader can only save a blank copy of this form. Please print your completed form if you would like a copy for your records.
If you really want a PDF that has the forms filled out and you don't have for example Adobe Acrobat 8.0 what do you do? Here comes the solution to the problem.
You can print it and scan it to a PDF file or even better get a free PDF printer like CutePDF Writer, pdf995, PrimoPDF or PDFCreator. With any of these freeware's installed you can select to print to that PDF writer and you will have a PDF with the filled forms.