The courthouse wants the original document. There is no actual ink color required by law to be used for signatures in order for documents to become legal and binding. Pin On Photography Inspiration When clients sign in blue ink it is easier to quickly identify which is the originalMany legal documents that affect real property must be recorded in the land records. . Blue ink is ideal for a couple of reasons. If there are instructions for a document to be signed in a specific color those instructions should be followed. In terms of the legal world a lot of weird conventions build up over time. All groups and messages. This is to more easily detect fraudulent documents. However blue ink is commonly used in order to easily distinguished original from copies of the original documents. This rule is in place to ensure that the judge is able to distinguish between the original document and any copies. This is bec...