Question: I have created a PDF form in Adobe Acrobat but users who have Adobe Reader have not been able to save the completed form. Is there a way they can do that?
Answer: Yes, however the creator of the form must save it with “Reader Extended Features.” In Acrobat 9 this is found on the Advanced menu option. With Acrobat X it is found from File > Save As. With Acrobat X you can select saving form data, commenting, and digitally signing the form, whereas with Acrobat 9 it allows all of these options. Once Reader Enabled, other features such as editing contents or inserting and deleting pages will be restricted, so be sure to save the reader enabled PDF with a different name so that you can modify the form later, if necessary.