To Work With Digital Signatures

Note:

Digital signatures can be attached only to files that are compatible with the AutoCAD 2000 and later drawing-file formats.

To Attach A Digital Signature to an Individual Drawing File

1. Do one of the following:
   • Click Tools menu Options. In the Options dialog box, System tab, click Security Options.
   • Click File menu Save As. In the Save Drawing As dialog box, click Tools Digital Signatures.
2. In the Digital Signatures dialog box, select Attach Digital Signature After Saving Drawing.
3. Optionally, add time stamp information or a comment under Signature Information.

To Attach Digital Signatures to Multiple Drawing Files At Once

1. Click Start menu (Windows), All Programs Autodesk <AutoCAD Product Name> Attach Digital Signatures.
2. In the Attach Digital Signatures dialog box, click Add Files.
3. In the Select File dialog box, select the files you want to attach a digital signature to. Click Open.
4. 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.
5. 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.
6. In the Comment box, add any information that is relevant to the files you are signing.
7. Click Sign Files.
8. 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.
   Note:

   If 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.

9. 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.