In several cases the word Tampered is used to define such documents.

In fact there is a digital signature service feature, called Tamper Evidence

If someone tries to change any part of the document (even something as simple as deleting a space or capitalizing a word), there’s proof that changes took place.

You may choose to use the word Tampered to define such documents.

In fact there is a popular digital signature service feature, called Tamper Evidence

If someone tries to change any part of the document (even something as simple as deleting a space or capitalizing a word), there’s proof that changes took place.