[Type of content] Form fields—including signature fields—are flattened, actions and calculations are removed [Where to view in Acrobat] Choose Forms > Add or Edit Fields or View > Navigation Panels > Signatures [Content type] 
Form field logic or actions
M e t a d a t a
F i l e a t t a c h m e n t s
A n n o t a t i o n s a n d c o m m e n t s
F o r m f i e l d l o g i c o r a c t i o n s
H i d d e n t e x t
H i d d e n l a y e r s
B o o k m a r k s
E m b e d d e d s e a r c h i n d e x
H i d d e n p a g e a n d i m a g e c o n t e n t