Croatian Authorities determine the paperwork procedure for your wedding abroad.
Always keep in mind that your embassy or local authorities can only act in an advisory capacity, the final decision regarding which paperwork will be approved for your wedding in Croatia lies with the Croatian authorities.
Only original documents
All documents have to be original documents, and be aware they will not be returned to you. All documents you will provide to the state of Croatia will remain there for their records for at least 10 years. After that time you can request to have them returned to you.
Be careful with middle names
Your full name on your birth certificate must be the same as the name on your passport and all other documents. If you have a middle name on the birth certificate this must also be on the passport, if for example this is not the case you will have to get a new passport prior to the wedding.
Stick to the 90 days rule
Even if you have an original birth certificate, it will not be accepted if it was issued more than 90 days prior to the wedding date.
This 90-days rule is valid for ALL documents you have to collect in order to be civilly married in Croatia.