I have some new problems about some charaters that only happen in PDFXviewer but not in Adobe.
Here the first problem!

I joined the document so you can see the result yourself!!
The problem #2 may not be caused by your program, however i would like to know if you guys have an idea
of what can cause this problem.
To resume, the problem #2 is related , i think, to an invalid character that make disappear the accent character.. To make this less hard to understand just click on CITY or ADDRESS in the pdf"problem2" and you will see what i mean. This may be caused by our Stamper on field data.
Thanks guys for you great patience and your software