When you use translation services it can help you to be in communication with people all over the world by having your documents or other communications translated into the language of your audience.
When translations are certified, it requires the documents to be translated by at least two translators to arrive at a commonly agreed translation. The process is further authenticated by having this translation again re-translated into the original language and then to compare it with the original to ensure that the intent and meaning remain the same.
The objective of any translation has to be to convey the original intent of any message while taking into account any regional or cultural differences between the two languages, the source, and the target language. Some concepts may be quite common in one language but are alien to the language in which they are required to be translated.