Adobe Acrobat XI User Manual download pdf (Page 411)

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Electronic signatures

Last updated 1/14/2015

Signatures made with the Certify or Sign With Certificate options comply with data protection standards specified by

the European Telecommunications Standards Institute (ETSI). In addition, both signature types comply with the PDF

Advanced Electronic Signature (PAdES) standard. Acrobat and Reader provide an option to change the default signing

format to a CAdES format. This option is compliant with Part 3 of the PAdES standard. The timestamp capability and

native support for long-term validation of signatures (introduced in Acrobat 9.1) is in compliance with Part 4 of the

PAdES standard. The default signing format, when set up accordingly, is compliant with Part 2 of the PAdES standard.

You can change the default signing method or format, in the Signatures panel of the Preferences dialog box. Under

Creation & Appearance, click More.

Setting up certificate-based signatures

You can expedite the signing process and optimize your results by making the following preparations in advance.

Note: Some situations require using particular digital IDs for signing. For example, a corporation or government agency

can require individuals to use only digital IDs issued by that agency to sign official documents. Inquire about the digital

signature policies of your organization to determine the appropriate source of your digital ID.

• Get a digital ID from your own organization, buy a digital ID (see the Adobe website for security partners), or create

a self-signed one. See

Create a self-signed digital ID. You can’t apply a certificate-based signature without a digital id.

Note: You cannot create self-signed digital IDs from within FIPS mode.

• Set the default signing method.

• Create an appearance for your certificate-based signature. (See Create the signature appearance.)

• Use Preview Document mode to suppress any dynamic content that can alter the appearance of the document and

mislead you into signing an unsuitable document. For information about using the Preview Document mode, see

• Review all the pages in a document before you sign. Documents can contain signature fields on multiple pages.

• Configure the signing application. Both authors and signers should configure their application environment. (See

Set signing preferences.)

For details on the full range of configuration options in enterprise settings, see the Digital Signatures Guide

• Choose a signature type. Learn about approval and certification signatures to determine the type you should choose

to sign your document. (See

Signature types.)

Set signing preferences

Signing workflow preferences control what you can see and do when the signing dialog box opens. You can allow

certain actions, hide and display data fields, and change how content affects the signing process. Setting signing

preferences impacts your ability to see what you are signing. For information on the available signing preferences, see

“Signing Workflow Preferences” in the Digital Signature Guide at

www.adobe.com/go/learn_acr_security_en.

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Adobe Acrobat XI User Manual Page 411