XML file formats are accurate and unambiguous. They can easily be merged with other formats like HTML to make webpages meaningful. It is a set of rules and documents. They are all of the same type which are consistent and free from errors. It is more of a standardization than structuring which helps to allow or disallow particular types. PDF to XML conversion is a simple process which when assisted by professional hands is a no brainer. It is just the art of converting plaint text and documents especially media into a format which is more efficient and reliable.