Signature Scope Not Restricted to View and Level Display

A signature includes all elements in the file or model. View attributes that are turned off, such as display of cells, text, dimensions, constructions, or tags, and view parameters, such as window area and clipping planes, are included in the scope of the signature. Similarly, all levels are included – regardless of whether they are displayed. In summary, all elements are signed even if no views are open and all levels are off.

Note: Even though the scope of a signature is not limited by view and level setting, a signature includes the state of those settings. Therefore, changing view parameters, turning levels on/off, or other design file settings will invalidate all signatures in that file.