HOUSTON — An antiabortion activist’s plan to reject a plea deal offering probation for charges related to making undercover Planned Parenthood videos likely means his goal is to use a trial as a public platform to criticize the nonprofit, according to legal analysts.

David Daleiden surrendered to authorities, posted $3,000 bond, and made two court appearances Thursday on the felony and misdemeanor charges he faces before prosecutors offered him pretrial diversion, a form of probation that would keep him out of prison and ultimately have the charges dismissed.

But Terry Yates, one of Daleiden’s attorneys, said Daleiden isn’t interested in accepting the plea offer and is prepared to head to trial if he can’t quash the indictment.

‘‘The only thing we’re going to accept right now is an apology,’’ he said.

The pretrial diversion, also offered to Daleiden’s codefendant and fellow activist Sandra Merritt, is the ‘‘right thing to do’’ and a common offer for first-time nonviolent offenders, Harris County District Attorney’s Office spokesman Jeff McShan said. But he also said prosecutors are ready to proceed to trial and that ‘‘our case is strong.’’

Attorneys for Merritt, 62, who turned herself in Wednesday and was freed on $2,000 bond, have not indicated whether she would take the probation offer. One of them, Dan Cogdell, didn’t reply to phone calls seeking comment.

Daleiden, 27, spoke to about 30 supporters outside the courthouse, saying there will come a day ‘‘when there is no longer a price tag put on human life.’’ He has described himself as a ‘‘citizen journalist,’’ and he criticized Texas authorities for not prosecuting Planned Parenthood.

Joel Androphy, a Houston defense lawyer not connected to the case, said: “If they take a plea, then their whole purpose of doing this goes down the tubes. This is about a mission. The mission is to show that Planned Parenthood did something wrong.’’

Associated Press