Note GroupDocs.Parser is a feature-reach document data parsing API. Here you may find description of the most important features. Parse Document by Template GroupDocs.Parser allows to parse documents by user-defined templates.
It is easy to crate a template with data field definitions, table definitions. Then it’s easy to use the template (just pass the Template object to parseByTemplate(Template) method) and extract data such as prices, invoices, tables from your typical documents....contain other documents like ZIP archives, Pdf portfolios, emails...