Sandra Bullock/Jesse James Divorce Final

Sources tell TMZ both Sandra and Jesse signed the final documents last week. Sealed documents have been filed with the clerk's office in Travis County, Texas -- sources tell us they are the papers making the divorce final.

Sandra filed for divorce back on April 23, saying the marriage "has become insupportable because of discord or conflict of personalities."

And sources say the divorce clears the way for Sandra to complete a single parent adoption.