TheSwamp
CAD Forums => CAD General => Topic started by: ChrisCarlson on February 06, 2014, 10:02:00 AM
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We recently adopted or rather are required to comply with a new set of industry standards. One of the new requirements is that every drawing must contain the provided stamp of the designer, an electronic stamp is acceptable and encouraged by them. Is there a way to "certify" a drawing upon saving so that if someone else, say another designer needs to make a revision, the original stamp is removed requiring the new designer to insert his/hers?
(http://i59.tinypic.com/259j2vt.jpg)
Is all I can find
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Once a drawing has been modified in any way, the previous digital signature is invalid. That's kind of the point of a digital signature...
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Will a digital signature remove the block / xref?
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No. there's no relationship between a digital signature, and any block/stamp/object in the drawing. Anything you see in the drawing is irrelevant to a digital signature - what the digital signature does is prove that a document has not been altered in any way since it was signed, and that it was signed by an account that had access to that specific digital signature. Even a single bit change will change the hash of the file and invalidate the signature.
If the 'certification' you're looking for is supposed to be visible in some way, then a digital signature is not the answer.
You'll need some customization to handle that -- possibly a routine that on-open deletes the certification stamp, and a modification of the same that inserts a fresh one. But nothing OOTB that handles that kind of thing.
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That's what I was figuring. Off to mess with the CUI and Macros....yippee... :ugly: