The phrase "a signed paper" is correct and usable in written English.
You can use it when referring to a document that has been signed, indicating its authenticity or agreement.
Example: "Please submit a signed paper to confirm your acceptance of the terms and conditions."
Alternatives: "a signed document" or "a signed agreement".
Digitally-signing the informed consent form, or returning a signed paper-based consent form will constitute completion of the informed consent process for fidelity.
You can buy a limited and signed paper edition here.
He was taken to a Border Patrol station and, as is customary with Mexican nationals without a criminal record, signed papers agreeing to be quickly deported without a hearing.
June 30 will be exactly a century since L.L. Burns and Harry Revier signed papers establishing a business to supply Los Angeles' fledgling motion picture industry with stages, props, sets and costumes.
Robert Stephan Cohen and and Thomas P. Puccio, the opposing lawyers for Ms. Griscom and Dr. Baker, said last week that the couple reached an agreement and signed papers recently.
He was released Friday evening after a magistrate in Chihuahua City, Mexico, signed papers securing his freedom from a jail in the neighboring border town of Ojinaga.
They were met there by a consultant for an Italian company, who took them to an office where they signed papers applying for residency in the Romanian capital.
There the women signed papers for a loan that they were told would bring their monthly payments down to a manageable level.
Sally, who was a law student in Nebraska, signed papers to have her younger sister involuntarily committed.
"They are taking this boy, treating him as an adult, having him sign papers without a lawyer present when he is an underage, unsophisticated Mexican citizen," Orozco told the judge.
