The Drawing Protection Racket
Whether you're sending DWG or DWF files, you may be concerned about their misuse (that is, by the wrong people or for the wrong purposes); abuse (for example, modification without your consent); or reuse (on other projects or by other people without due compensation to you). AutoCAD has two features for securing your drawings when you send them to others:
- Password protection: Enables you to lock a DWG or DWF file so that only those who type the password that you've specified can open, insert, or xref it (AutoCAD LT users can't apply a password, but they can open password-protected files. If they know the password, of course!).
Add password protection to drawings only when you really need it:
- If you forget the password, you'll no longer be able to open the drawing. Neither AutoCAD nor Autodesk has any magical way to extract the password or unlock the drawing.
- After you password-protect a drawing, others can't insert the drawing as a block or attach it as an xref.
If you're using a password, you probably should do it on a copy of the drawing that you send; keep an unprotected version for yourself.
- Digital signature: A high-tech way to add an electronic marker to a DWG file that verifies that someone approved the drawing. You must first get an account ...