Inserts a PDF file as an underlay into the current drawing.


When you attach a PDF file as an underlay, you link that referenced file to the current drawing. Any changes to the referenced file are displayed in the current drawing when it is opened or reloaded.

The Select Reference File dialog box (a standard file selection dialog box) is displayed. Once you select a PDF file, the Attach PDF Underlay dialog box is displayed. After the file is attached, you can adjust and clip the underlay through the PDF Underlay Ribbon Contextual tab.

Note: If you plan to access PDF files from the Autodesk Vault client server, the Autodesk Vault file open dialog box supersedes the Select PDF File dialog box. Access to the Autodesk Vault client server is available to Autodesk Subscription customers. (Not available for AutoCAD LT.)