ERA (Electronic Revision and Approval) for Microsoft Word ($149) lets you electronically approve any Word document by signing your name using a normal ballpoint pen and a pressure-sensitive signature pad. From Silanis Technology (Montreal, Quebec, Canada), ERA provides the electronic signature as a visual clue to let oth-ers know that a drawing was approved. AutoCAD, however, does not make the signature part of the drawing, eliminating the threat of someone's copying or altering the signature. ERA can verify a document's integrity by ensuring that it has not changed since a previous approval. Encrypted copy protection shields the signature from tampering.
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Electronic Document Approval
