I created a fillable pdf in Acrobat a while ago and extended features in Adobe Reader to create it. I created another fillable pdf months later the same way. And then I decided to merge the two because I needed them to be together. I highlighted both forms (the forms that were the result of extending features to Adobe Reader) and the combined form has a purple bar at the top stating "Click 'Sign' to fill out and sign this form. When you are done, you can save a copy by clicking 'Done Signing'." Why is this? Clients can no longer fill the form out and save it like they used to. They now must sign it and then it becomes uneditable after Save As.
Both files used for this merge open in Reader and allow the user to fill out the form and save data typed into the form. But once I merge the two, this is no longer the case. Also, there are no signature fields in either document.
Acrobat 9.5.4
Reader 10.1.6