Click Start menu (Windows), All Programs Autodesk
AutoCAD 2008 Attach Digital Signatures.
In the Attach Digital Signatures dialog box, click Add
Files.
In the Select File dialog box, select the files you want to
attach a digital signature to. Click Open.
NoteIn the Attach
Digital Signatures dialog box, you can attach digital signatures to
files that are compatible with AutoCAD 2000 and later drawing-file
formats.
In the Attach Digital Signatures dialog box, in the Select a
Digital ID (Certificate) box, select a digital ID to attach to the
files you selected in the Files to Be Signed list.
In the Get Time Stamp From box, select a time service if you
want to add a time stamp to the signed files. If you do not want to
add a time stamp, use the default option No Time Stamp.
In the Comment box, add any information that is relevant to the
files you are signing.
Click Sign Files.
If the file you want to sign is read-only, the Read-only File
dialog box is displayed. Do one of the following:
To sign a read-only file, click Yes.
To sign all read-only files, select Use the Same Answer for All
Read-only Files in This Batch. Click Yes.
To cancel the application of the digital signature to a single
read-only file, click No.
To cancel the application of the digital signature to all of
the read-only files, click Cancel.
NoteIf you chose
either a Medium or High security level when you obtained your
digital ID, a message is displayed each time you try to attach a
digital signature to a file.
When all files have been signed, the Signing Complete message
displays the number of files that were signed. Click OK.
Files that were
successfully signed display the text “Signed” in the Status column
of the Files to Be Signed list.
Click Close.
NoteWhen you sign
multiple files at once, the files become read-only files to help
prevent someone from accidentally invalidating a digital
signature.