Dartford have signed former Norwich, Plymouth and Braintree winger Luke Daley.
Last week, Darts boss Tony Burman said he'd been impressed by Daley's efforts on trial and now a deal has been done to bring the 24-year-old to Princes Park.
Daley made 31 appearances for Braintree last season as the Iron finished sixth in Conference Premier.
Burman said: "I have been impressed with Luke throughout the pre-season and I am delighted he has accepted an offer to join us next season.
"Luke, at 24, is at a good age, has experience in playing Conference football and will be a good addition to the squad."
However, two other trialists have been released.
Burman said: "I would like to thank both Tom Derry and Jordan Adekunle for their efforts during pre-season. However, at this moment in time, (I am) unable to offer them a deal for next season."
Dartford's next pre-season friendly is away to Thamesmead Town on Saturday.