I have the message following but I download the last version on my iPad ????
Please wait... If this message is not eventually replaced by the proper contents of the document, your PDF viewer may not be able to display this type of document. You can upgrade to the latest version of Adobe Reader for Windows®, Mac, or Linux® by visiting http://www.adobe.com/go/reader_download. For more assistance with Adobe Reader visit http://www.adobe.com/go/acrreader. Windows is either a registered trademark or a trademark of Microsoft Corporation in the United States and/or other countries. Mac is a trademark
As you get the error message mentioned above, it seems that you are trying to open the dynamic PDF from on the mobile application. They are not supported on the mobile application. You will need to use the desktop application (Mac or Windows) to open those PDFs.