Create a certified document
When you create a certified document, you indicate to others that you approve of its content. You can also specify the types of changes permitted for the document to remain certified. Detection of unwanted changes will be provided when the user signs the document. Therefore, in order to protect the document, only the changes you wish to allow will be included.
1.		Make sure that you have finished making changes to the PDF document.
2.		Choose File > Save as Certified Document.
3.		Do one of the following:
		ΓÇó Choose Get Digital ID from Adobe Partner to obtain digital ID information from the Adobe Web site.
		ΓÇó Click OK to use an existing digital ID or to create a self-signed digital ID.
4.		From the Allowable Actions menu, select which actions to allow for this document to remain certified, and then click Next.
5.		Follow the steps to certify the document, and then choose Sign & Save As to save the certified document. Close the document without making further changes.
You may also want to:
Sign a document
Set up a digital ID
Security Topics
Certifying a document in complete Help