3-Heights™ Document Converter – the enterprise server solution

The 3-Heights™ Document Converter is a company-wide PDF converter solution that converts all popular file formats to PDF, PDF/A and TIFF. The conversion service can be accessed using watched folders, batch or its API.

It addresses various requirements in the field of conversion, in particular:

  • Making documents archivable (MS Word to PDF also convert docx to pdf) 
  • Migrating existing archives
  • Exchanging documents
  • Fulfilling standards (ISO) and security requirements
  • Archiving websites and email
  • Standardizing the variety of formats across the corporation


MS Office documents to PDF, PDF/A and TIFF

Internet Mail Message

Convert emails (with attachments) to PDF, PDF/A and TIFF

Enterprise Application

Implement as central / online conversion portal

Product illustration 3-Heights™ Document Converter

Document converter - features

  • The most significant features include
    • Conversion of a variety of formats, such as Office documents or emails, to PDF/A and TIFF
    • Merge documents
    • Robust client/server architecture
    • Quick and easy installation (MSI Installer)
    • Configuration application for easy management of conversion settings
    • Minimal platform and resources requirements for clients
    • Convenient integration into user environment via explorer pop-up menu
    • Automatic conversion processing from watched folders
    • Apply digital signatures
    • Scalability for high throughput by parallel processing
    • Automatic processing also from folders on an e-mail server
    • Additional input document formats available via plug-ins
    • Web service (IIS) interface
    • Application Programming Interfaces available (C/C++, Java, COM)
              Functionality graphic 3-Heights™ Document Converter


              • Standards:
                • ISO 32000-1 (PDF 1.7)
                • ISO 32000-2 (PDF 2.0)
                • ISO 19005-1 (PDF/A-1)
                • ISO 19005-2 (PDF/A-2)
                • ISO 19005-3 (PDF/A-3)
              • PAdES (ETSI EN 319 142) signature levels B-B, B-T, CMS
              • Legacy PAdES (ETSI TS 103 172) Part2 and Part4 (Long Term Validation, LTV)
              • Cryptographic Suites (ETSI TS 119 312)
              • TIFFV6
              • ZUGFeRD 1.0, Factur-X V1.0

              Supported formats

              Input formats

              • Microsoft Office, including Word, Excel, PowerPoint, Visio, Outlook
              • Document formats corresponding to the installed MS Office version
              • MS Word accepts non-native formats, such as plain text (ASCII and UNICODE), WordPerfect, HTML and others
              • PDF (Portable Document Format)
                • PDF 1.0 to PDF 1.7
                • PDF 2.0
                • PDF/A-1a, PDF/A-1b
                • PDF/A-2a, PDF/A-2u, PDF/A-2b
                • PDF/A-3a, PDF/A-3u, PDF/A-3b
              • EML and MSG (Internet Mail Message format)
              • Image Documents (TIFF, JPEG, BMP, PNG, GIF, JBIG2, JP2, JPM)
              • ZIP or RAR files containing documents corresponding to any supported format

              Output formats

              • PDF
                • PDF 1.0 to PDF 1.7
                • PDF 2.0
                • PDF/A-1a, PDF/A-1b
                • PDF/A-2a, PDF/A-2b, PDF/A-2u
                • PDF/A-3a, PDF/A-3b, PDF/A-3u
              • TIFF: Bi-tonal, Monochrome, Color; with CCITT G4, JPEG, flate, LZW or no compression

              Areas of use - central conversion for all popular file formats to PDF, PDF/A and TIFF

              Incoming mail

              Incoming file scans and emails are received by the 3-Heights™ Document Converter inbox. Email messages and all the attachments are merged to form one single document. Optionally, it can recognize text via OCR, supplement metadata, add digital signatures, compress files and condition them for further processing within the company.

              Outgoing mail

              The 3-Heights™ Document Converter employed in email dispatch converts digital documents to PDF/A or PDF prior to sending.


              The archive module of the 3-Heights™ Document Converter processes digital documents from all areas of the company. These can be emails, websites, Office documents or other documents. It converts them to a standard format, completes metadata and checks the result for conformance with the standard. As a gatekeeper it ensures that only conform documents are transferred to the long-term archive.

              Other areas of use

              • Archive migration
              • Online conversion service
              • Company-wide conversion portal

              Enterprise edition

              The Enterprise Edition of the 3-Heights™ Document Converters not only offers the conversion of the common work documents, such as Office documents, to PDF, but also the conversion of entire websites and emails. This makes it especially suitable for processing incoming mail and for archiving emails with attachments and Office documents in the long term. Additional formats can be added thanks to its plug-in architecture.

              The Enterprise Edition features an API and a web-service, which allows a simple and quick integration in existing environments. Due to its high speed, availability and scalability it can be implemented as a ready-to-use solution in companies of any size.

              SME edition

              The Small-Medium Enterprise Edition offers all essential features that are required for the document conversion to PDF/A or TIFF by small and medium companies, which do not maintain their own IT department. Besides Office documents, all common image formats can be converted and there is an option to integrate an OCR engine.

              This variety of formats enables secure incoming and downstream processing as well as long-term archiving in PDF or PDF/A format. The optional digital signature functionality guarantees document authenticity and integrity.

              The SME Edition does not require Terminal Server and allows an interactive monitoring and operating of the service.

              Product Editions 3-Heights™ Document Converter

              Interfaces Enterprise Small-Medium
              Watched file folders
              Watched Email folders (via IMAP)
              GUI Client
              Shell Extension for Windows Explorer
              Command Line Tool
              Programming Interface (API)
              MS Word / Outlook Add-Ins
              Web-service IIS
              .NET Plugin
              VB Script Plugin
              Added Value Functions    
              Optional Text Recognition (OCR)***
              Merge PDF Files
              Conformance Validation
              Digital Signature
              Fast Web Viewing
              File compression
              Embedding of Metadata
              Document Pre-processing
              XSL Transformations
              Input formats    
              MS Word, Excel, PowerPoint, Visio*
              Open Office, Libre Office*
              Email [with attachments(*)] (MSG, EML, MIME)**
              Plain Text (ASCII, UNICODE), WordPerfect
              Image Formats: BMP, GIF, JPEG, PNG, TIFF, JB2, JP2, JPX, PBM
              Nestet Containers: ZIP, TAR, RAR
              Websites: URL
              Custom specific extensions: e.g. CAD
              Output formats    
              TIFF V6, TIFF JPEG TN2
              PDF 1.7
              PDF/A-1a, PDF/A-1b
              PDF/A-2a, PDF/A-2b, PDF/A-2u
              PDF/A-3a, PDF/A-3b, PDF/A-3u
              ZIP-Archives (TIFF or PDF or PDF/A)
              Windows Server (Windows Server 2008 or higher)
              Windows Client (Windows 7 or higher)
              Performance and Maintenance    
              Number of Clients unlimited unlimited
              Dispatcher Service
              Number of Worker Sessions (scale up) 1 to n 1
              Distributed Worker Sessions / Multiple Servers (scale out) 1 to n 1
              Windows Terminal Server Sessions

              * Requires Office (MS Office or LibreOffice)
              ** Requires MS Outlook
              *** Requires 3-Heights™ OCR Service

              The world's first electronic website archiving system in conformance with the ISO PDF/A standard

              The system detects any changes to the archived version and knows whether or not to create a new version for the archive. The size of the websites to be archived is adopted 1:1 in PDF/A format. This creates a rolling page in PDF/A format, whereby page numbering is controllable.

              Swiss Life archives documents from Microsoft SharePoint in PDF/A format

              Through the archiving of documents from Microsoft SharePoint in PDF/A format, the internal employees are controlling the archiving process directly out of SharePoint and can access the archived documents over the standard user interface.

              PDF Expert Blog - Convert invoice documents to the ZUGFeRD data format

              Converting invoice documents to the ZUGFeRD data format

              XML or PDF? That's one of the most heard questions when it comes to invoice document formats. XML is the preferred format for machines whereas PDF is the format for humans. But why not have the cake and eat it? With ZUGFeRD you can have both documents in one file.

              PDF Expert Blog - Automated conversion of Microsoft Office Documents to PDF/A

              Automating the conversion of Microsoft Office Documents to PDF/A

              A central service to convert Microsoft Office documents to PDF or PDF/A has obvious advantages. The conversion is done on an enterprise wide platform with well defined software versions and conversion process configurations...

              ZUGFeRD - PDF/A & XML - the standard for electronic invoices, x-factures

              stay informed about
              the special format
              for electronic invoices


              • What is ZUGFeRD?
              • Where is ZUGFeRD used and when does it make sense?
              • What do you have to keep in mind?
              • How does PDF Tools AG support ZUGFeRD?

              Basics and applications

              • What does a central conversion service do?
              • How is the service used?
              • What are the benefits of a central service?
              • Architecture and performance features

              Read the white paper about our Document Converter