Express Server

Fast, Reliable, Standards-Based Image Delivery
LizardTech® Express Server® software is the fastest, most stable, and easiest way to distribute compressed, high-resolution raster imagery via standard protocols. With Express Server, users on any device access imagery faster, even in bandwidth-starved environments. Support for MrSID®, JPEG 2000, NITF and Geospatial PDF formats ensures the highest visual quality regardless of connection speed.




Introducing Version 8:

With the new graphical user interface (GUI) for Express Server our customers can easily and quickly configure their Express Server software and their image catalogs from anywhere on the Web without having to open a command line or edit XML files. Now you can set Express Server’s basic properties, configure catalogs, create catalog groups – even license your installation – all in the new GUI, just by logging in with a browser, checking a few boxes, filling in a few fields, and clicking a button or two. We call it the Express Server Manager.

Did you know that many organizations are using PDFs for distributing maps? They’re called Geospatial PDFs and they’re georeferenced files, just like your MrSID and JPEG 2000 files. Well, Express Server 8 supports Geospatial PDF as a source image format, which means you can take advantage of PDF data and serve a wider range of users.

Taking Express Server for a 30-day test-drive is also easier than ever before – download and install it once; if and when you purchase that same installation becomes permanently licensed.

Support for MrSID Generation 4 (MG4):

MrSID Generation 4 (MG4™) is the latest version of the LizardTech® MrSID file format.

MG4 meets the demands of new technologies for analyzing the earth by supporting multi- and hyperspectral imagery and alpha band transparency. Support for MG4 in Express Server means better looking mosaics and greater control over the multi- and hyperspectral imagery you serve.

For more information on MG4, please visit our GeoExpress product page.

With Express Server 8 you can:

  • Quickly and easily distribute high resolution raster imagery
  • Retain high visual quality, regardless of connection speed, with support for MrSID, JPEG 2000, NITF and Geospatial PDF formats
  • Distribute up to 255 bands in MrSID format with support for hyperspectral imagery
  • Run Express Server on a 64-bit operating system to take advantage of memory-based performance improvements
  • Try it for free today. A 30-day trial is available here.

Features and Benefits


  • Wavelet based MrSID and JPEG 2000 image formats ensure high speed delivery so users have access to more imagery faster.


  • Express Server can support all your end users without delays caused by simultaneous requests.


  • Enjoy hassle-free installation and configuration without command lines. Express Server installs in minutes and is easy to administer.


  • Rest easy knowing your imagery and workflow are secure. Express Server supports industry and ISO standard image formats (MrSID, JPEG 2000, NITF, Geospatial PDF) and integrates imagery from any WMS-enabled GIS anywhere.

Get Started Faster, Administer with Ease

Express Server 8’s graphical user interface makes configuring the software and managing your image catalogs easier than ever before. No more editing XML files or learning command lines; Express Server installs in minutes, and with a few clicks you can be viewing your own imagery in the included sample web applications.

Take Advantage of Innovations in Imaging

Multispectral and hyperspectral imagery are becoming increasingly more integral to the workflows of the geospatial professionals you serve. Express Server supports MrSID Generation 4 (MG4), the latest version of LizardTech’s MrSID format, which enables you to serve out specified bands from multi- and hyperspectral imagery. MG4 also uses alpha-band transparency for better looking mosaics.

Satisfy More Image Requests Faster

Express Server operates with existing image servers to leverage the dynamic properties of wavelet-based image compression formats, enabling you to speed up delivery of your geospatial imagery without having to add bandwidth or hardware. Express Server 8 software supports industry and ISO standard image formats such as MrSID, JPEG 2000, NITF and Geospatial PDF, and runs on standard protocols such as WMS and JPIP. Express Server software runs on 64-bit operating systems, so you can take advantage of memory-based performance improvements.

Deliver the Highest Visual Quality

The advanced wavelet algorithms at the heart of MrSID and JPEG 2000 compression naturally result in multiple resolution levels that are stored within the encoded image file. This “wavelet advantage” enables high compression of imagery while retaining ultra-high quality – lossless quality when you need it – and making labor- and storage-intensive image pyramids unnecessary. Wavelets also enable selective decompression – decoding only the pixels for a requested scene – ensuring both high image quality and rapid delivery.

Engage a Wider Range of Users

Express Server delivers imagery to any device over any connection. Express Server image repositories can be integrated with geographically distributed data stores via many different applications, which means more users can view your geospatial data. Imagery distributed using Express Server is interoperable not only with applications supporting open standards such as OGC’s WMS, but also with web browsers, custom web applications and third-party applications such as Google Earth. You can also use the JPIP protocol to stream massive images over networks in bandwidth-constrained environments. Express Server also speeds up image delivery with ArcGIS Server and ArcGIS Image Server. Users can view image layers published in Express Server simultaneously with data from server applications or connect an ArcMap client directly to Express Server and work with datasets hundreds of gigabytes in size right on their desktops.

Make the World Your Data Library

Web Map Service (WMS) support in Express Server means WMS-enabled clients can integrate your Express Server image repositories with WMS-compliant geospatial data stores anywhere in the world. Using WMS you can publish your images in a variety of coordinate reference systems and let Express Server mosaic and reproject them on the fly, so your users can work with imagery however they need to. Your imagery is accessible to worldwide users while locally you leverage the fastest raster delivery technology available.

Leverage Sample Applications

Express Server’s sample web applications have been updated and are included with the installation, so you can view or show off your imagery using a number of viewing methods – including JavaScript, Flash, and Ajax – right out of the box. LizardTech’s ExpressView™ Browser Plug-in is a freely downloaded viewer that opens all imagery delivered by Express Server. Customizing the sample applications is an easy way to get started running Express Server.

Deliver a Better User Experience

In panning and zooming, scenes resolve instantly with MrSID, JPEG 2000 and NITF images served by Express Server. That’s because only the pixels the user needs are extracted and delivered as users navigate an image.

Ensure Scalability and Performance

Express Server software includes built-in tools for synchronizing catalog information between Express Servers, so you can easily add another Express Server to your server farm for load balancing or as a hot spare.

Distribute More Complete Data

Support for geography markup language (GML) in Express Server 8 means you can add geospatial metadata to your JPEG 2000 imagery and Express Server will deliver it intact to GIS applications and other viewing and programming applications. More than just geocoordinates, geospatial metadata enables you to create JPEG 2000 imagery that is “spatially aware.”

Publish Directly from GeoExpress

Using the Express Server management tools included with versions 7 and later of the GeoExpress® application, you can rapidly export images in MrSID and JPEG 2000 formats to Express Server catalogs without having to reencode them.

Case Studies

Express Server gives organizations and government agencies greater access to massive geospatial imagery and aerial photography. A broad range of organizations and government agencies rely on Express Server to rapidly distribute geospatial imagery and aerial photography to personnel, partners and customers around the world.

United States Army Corps of Engineers

The Albuquerque District of uses Express Server to serve both in-house image holdings and cloud-based imagery to its USACE-wide audience.

Download PDF Case Study ~ PDF 867 kB

View HTML Case Study ~ HTML


Air Force Special Operations Command (AFSOC)

LizardTech Express Suite enabled the Air Force easy access to imagery for supporting U.S. troops in Iraq and Afghanistan.

Download PDF Case Study ~ PDF 86 kB

View HTML Case Study ~ HTML


State of New Jersey Office of Geographic Information Systems

The State of New Jersey OGIS used Express Server as an extensible solution for streaming its own orthoimagery, acquired NAIP data and USGS topographic maps.

Download PDF Case Study ~ PDF 115 kB

View HTML Case Study ~ HTML


Québec Ministry of Sustainable Development, Environment and Parks

The Québec Ministry of Sustainable Development, Environment and Parks promotes sustainable development while protecting natural ecosystems. The Ministry annually receives 10,000 aerial images of provincial territory in color and greyscale, which it uses for ecological analyses. The Ministry installed LizardTech GeoExpress to convert GeoTIFFs to industry standard MrSID format and Express Server to distribute the imagery among its offices and personnel in the field for use as image layers in ArcMap and WMS-enabled web applications. Now, personnel anywhere can quickly view any of the Ministry's image data from one central, easily updated repository.

Download PDF Case Study ~ PDF 260 kB

View HTML Case Study ~ HTML


Cartographic Institute of Catalonia, ICC

The Institut Cartogràfic de Catalunya (ICC), or Cartographic Institute of Catalonia, is a public agency of the Catalan Autonomous Government. Its mandate is to lay the technical groundwork for the development of cartographic information in various government agencies and to carry out mapping and development projects requested by public and private institutions. The ICC turned to LizardTech Express Server to make its image data available to users at high speed and high resolution.

Download PDF Case Study ~ PDF 197 kB

View HTML Case Study ~ HTML


Indiana University-Purdue/University Indianapolis Library System

The Digital Libraries Team is in charge of the Web presence for University Library, which serves Indiana University-Purdue University Indianapolis (IUPUI). The team creates unique scholarly resources with an emphasis on philanthropic studies, research generated by both universities, and materials relating to Central Indiana. University Library installed LizardTech Express Server to handle instant delivery of images and documents from its emerging online atlas to customers in K-12 education and academic research.

Download PDF Case Study ~ PDF 97 kB


System Requirements

All Operating Systems

  • 2 GB RAM
  • Dual processors
  • 100 MB of free disk space, plus room for imagery
  • Gigabit Ethernet or fiber-optic for remote imagery


  • 3+ GHz Intel Xeon processor
  • One of the following Microsoft Windows operating systems:
    • Server 2003 SP2 (32- or 64-bit)
    • Server 2008 SP2 (32-bit)
    • Server 2008R2 SP1 (64-bit)
  • One of the following Web servers:
    • IIS 6.0 (on Server 2003)
    • IIS 7.0 (on Server 2008)
    • IIS 7.5 (on Server 2008R2)
    • Apache Web Server 2.0.46 (32-bit)
    • Apache Web Server 2.2.17 (32-bit)


  • 3+ GHz Intel Xeon processor
  • One of the following operating systems:
    • Red Hat Enterprise Server 5.0
    • Red Hat Enterprise Server 6.0
  • One of the following Web servers:
    • Apache Web Server 2.0.46 (32- or 64-bit)
    • Apache Web Server 2.2.17 (32- or 64-bit)