Adding Signatures and Security in Adobe Acrobat 9 About Digital Signatures. Acrobat 9 gives you all the tools you need to sign a PDF document to indicate your approval or certify a PDF document to approve its contents. Acrobat also provides the tools you need to secure your PDF documents. You can use passwords to restrict users from opening, printing, and editing PDF documents. Patch For Outlook 2010. You can use a certificate to encrypt PDF documents so that only an approved list of users can open them. If you want to save security settings for later use, you can create a security policy that stores security settings. I1B0.jpg' alt='Adobe Acrobat Windows Certificate Store Digital Signature' title='Adobe Acrobat Windows Certificate Store Digital Signature' />You can also permanently remove sensitive content from your PDF documents by using the Redaction feature. In this exercise, youll create a digital ID that uses an image, digitally sign documents, apply password protection to a file to restrict who can open it, apply a password to limit printing and changing of the file, and learn how to certify a document. If you dont have the example files from the book, you can work with your own PDF documents. A digital signature, like a conventional handwritten signature, identifies the person signing a document. Unlike a handwritten signature, however, a digital signature is difficult to forge because it contains encrypted information that is unique to the signer and easily verified. To sign a document, you must obtain a digital ID from a third party provider or create a self signed digital ID for yourself in Acrobat. The digital ID contains a private key that is used to add the digital signature and a certificate that you share with those who need to validate your signature. For information about Adobe security partners that offer third party digital IDs and other security solutions, visit the Adobe website. When a user is trying to digitally sign a PDF he gets the following error The Windows Cryptographic Service Provider reported and error Keyset does not. This page andor pages linked from this page contain Third Party Software Licenses andor Additional Terms and Conditions applicable to the use of the Software as. In this stepbystep exercise, the Adobe Creative Team shows how to work with digital signatures, certification, and password protection in Acrobat 9 documents. Since management of Entrust certificates are free, how do I get credited for my used license when I switch an nonEntrust managed certificate to an Entrust certificateLearn software, creative, and business skills to achieve your personal and professional goals. Join today to get access to thousands of courses. Adobe Document Cloud insights, trends, news and more.