Posting bail is often a requirement following an arrest. Many people end up getting released without bail. However, this is not always the case. Sometimes, the aid of a bondsman is required.
In this situation, you will have to pay a fee upfront. After you have paid the fee, the bondsman will post bail for you. This can be an expensive process but it will still cost less than going ahead and paying your entire bail to the court.
Keep in mind that a bail bondsman is guaranteeing that you will appear in court. If you do not show up at all of your hearings then the bondsman will likely try to find you.