First, no fear of someone 'scanning' or otherwise grabbing part of an electronic copy of a drawing is ANY different than the same party simply scanning a hard copy and doing the same thing. AutoCAD provides an efficient method of releasing non-editable drawings that can be plotted by anyone and contain the appropriate stamp/seal. 1) Produce a physical stamp and sign/date it as required or desired by the professional or the laws of that state, on a blank piece of paper. 2) Scan it, producing a .jpg or .tif or .gif, as desired. 3) Attach this image (and scale if needed to the 'exact' physical dimensions of the original) to the drawing set border, in the correct location intended for the seal. 4) Open each drawing, and in paperspace the xref'd border will show up with the seal exactly the same on every drawing sheet. 5) Publish using either the "DWG to PDF.pc3"(small-ish PDF) or the preferred AutoCAD "DWF6 ePlot.pc3" which results in a MUCH SMALLER snapshot of the sheet. NOTE: Although PDF is 'universal' using a free download Acrobat Reader client application, SO IS the free DesignReview client application. Typically, DWF format is not only better at plotting exactly the output as the designer intended it to appear, but there will be fewer issues with ArialMT and other embedded font problems. Nothing really against the PDF format, it just is not as good or as efficient as the DWF format for 2D final sheet plots of AutoCAD drawings. I'd rather email a set of sheets at 70k each than 300k each. Oh yes: 6) When finished "publishing" each sheet electronically, simply DELETE the scanned seal image. If the professional is personally present during this process which takes only minutes with any CAD tech, and supervises and witnesses the deletion of the seal file, it cannot be rationally argued that this process results in ANY legally or otherwise noticeably different end result. In fact, Autodesk appears to have specifically designed this procedure in for this purpose. As an aside, remember that your Tools/Options/Plot and Publish/Auto publish is where you setup the automatic DWF or PDF creation on the fly, every time the drawing gets saved, so that at any moment anyone with access to your project folder on the file server can grab and review the latest, current drawing using the free Design Review application, redline it and send it to others with comments, all without any version of AutoCAD. And the DWF file is comparatively tiny, quick, and efficient. The only difference is the presence during final publication of a referenced seal created uniquely for the final release set of drawings. Please remember to setup a File/Page Setup Manager "Page setup" in each drawing, with the correct intended final plot page size (such as "ARCH expand D" for 36x24 sheet sizes), so that the PDF can be Published - or auto-created - to plot at 1:1 scale at the correct page size.