In Advance Steel, the Document Manager (DM) provides the option to produce single sheet PDF files. Using the AutoCAD® Publish 2011 command you can create a single multi-page PDF of many drawings rather than a separate PDF of each drawing.
This option is available starting with AutoCAD® 2011.
2. Enter DM and open the drawings you want to print to PDF format.
3. From the AutoCAD® menu select "Publish"; you can also type "publish" on the command line.
4. In the window that appears select "PDF" from the "Publish to:" drop-down list.
5. Enter the "Publish Options..." and specify the "Location" where you want to create the PDF file. Also select the "Multi-sheet file" and "Prompt for name" options in the "Type" and "Naming" fields. See the following figure.