The drawing you intend to use with this feature must contain three blocks - a block to be displayed when the drawing has a valid digital signature; a block to be displayed when the drawing has been modified or has an invalid or no signature; another block (that has been inserted into the drawing) that will be overridden to display the graphics from the other two blocks. The first two blocks should not have been inserted into the drawing for any other use (any existing inserts will be erased after using JTBWDSDEFSIGBLOCKS).

To select blocks one and two (the 'good' and 'bad' blocks), invoke the JTBWDSDEFSIGBLOCKS command and type in the names of your 'good' and 'bad' blocks when prompted.

The application will display information from the digital signature in the attributes you define in the 'good' block. The names to use are:

CERTISSUER

CERTEMAIL

CERTSN

CERTSUBJECT

CERTCOMMENT

CERTNOTBEFORE

CERTEXPIRES

CERTTIMESERVER

CERTTIMESTAMP

Attributes in the 'bad' block are not displayed.

The installer that ran when you downloaded this app from Autodesk App Store will start installing the app. Or, double-click the downloaded installer to install the app. You may need to restart the Autodesk product to be able to run the app.

To uninstall this app, exit the Autodesk product if you are currently running it.

On Windows 11 and 10 version 1703 or later press Windows+I on the keyboard to access Settings or click or right-click the Windows Start button and then select Settings. Click on Apps (optionally followed by Apps & features). On older Window versions click Control Panel > Programs > Programs and Features or Control Panel > Add.

To select the block insert (block reference) to display the signature information, invoke the JTBWDSSETSIG command and select that block insert. You're now ready to use your digital signature stamp. To digitally sign a drawing, you will need a digital signature. If you don't have one, you can procure one from (for example) docusign.com. Invoke the SECURITYOPTIONS command in Autodesk® AutoCAD® 2015 and older or the DIGITALSIGN command in AutoCAD 2016 and newer to add your digital signature when it is saved. Now when you plot your drawing, the digital signature plot stamp will display the current signature state of the drawing. Addin usage is demonstrated in the short screencast included in the "Demo" folder. The sample DWG used in the demo is also contained in that location. Locate the Demo folder by using this path "%appdata%\Autodesk\ApplicationPlugins\JTBWorld-DigSigStamp.bundle\Contents\Demo". You can copy and paste the path to the address bar in Windows Explorer (File Explorer in Windows 8 and newer) and press enter.

See also our app page at http://jtbworld.com/digsigstamp

1. Displaying the plot dialog flags the drawing as modified. This is normal AutoCAD behavior (try displaying the plot dialog, closing it, and then closing the drawing and you'll see AutoCAD ask you to save changes). This app accounts for this during plotting but does not remove the 'modified' flag.

2. For performance reasons, the digital signature stamp is not automatically updated every time the drawing changes. Therefore, the stamp shown while editing a drawing may be incorrect. Regen the drawing to update the stamp. (The stamp will display the correct graphics during plotting).

3. DigSigStamp has not been designed to work with the following:

• Signature blocks inside nested blocks
• Signature blocks in external references