10.0 for Windows

Table Of Contents
Foxit PhantomPDF Quick Guide
33
Choose the location to store your self-signed digital ID.
Enter your identity information when generating the self-signed certificate.
Enter a file location and password for your new digital ID file.
Signing documents
Before you sign a document, you need to draw a signature field where the signature is
placed, get a digital ID, and create the signature.
You can click Sign & Certify > Place Signature in the Protect tab to finish signing.
A PDF is signed to indicate your approval. The signature will not be resized and moved
when you sign the document. Multiple people can sign a PDF more than once. When you
sign a document, your digital signature appears in the signature field. The appearance of
the signature depends on your preferences.
Validate signatures
Signature validity is determined by checking the authenticity of the signature’s digital ID
certificate status and document integrity. Depending on how you have configured your
application, validation may occur automatically.
1. Open the PDF containing the signature, do one of the followings:
Choose Protect > Validate.
Right-click the signature with the Hand command, choose Validate Signature from
context menu.
Select the Hand command on the toolbar and click the signature.
Click the Digital Signatures panel, right-click the signature and choose Validate
Signature.
2. Pop-up a Signature Validation Status message box which describes the validity of
signature.
Note: By default, Foxit PhantomPDF will verify signatures when the document is opened, and
will check the certificate revocation status while verifying signatures. To change the setting,
please go to File > Preferences > Signature, and uncheck the corresponding options in Signing
& Verifications.
Certifying a PDF (Available in Business Only)
Only the author can certify his/her own PDF documents. The author can specify what
changes can be made to the file after certifying. Whenever approved changes are made,
the certificate remains valid. If a reader tries to make changes you haven't allowed, the
certificate is invalidated and any subsequent users will be notified that the document was
tampered with.
Add a time stamp to digital signatures and documents