Where Technology Provides People with Disabilities Access to Information
gh logo

Other Formats (XML, HTML, RTF, PDF)

gh offers conversion to and from many different electronic formats, emphasizing accessibility every step of the way. Ranging from XML files beyond the common Digital Talking Book and NIMAS types to Rich Text Files that are ready for Braille translation, gh will quickly and accurately convert your content.

gh's proprietary conversion process has been designed from the ground up to facilitate conversion to almost any electronic format. All documents are first converted to a special mark-up language unique to gh which allows conversion to various deliverable formats at the push of a button! This process constitutes a huge savings in time and money, particularly if multiple formats are needed—no need to convert your documents twice!

Brief descriptions of common formats are given below. This list is not exhaustive—please contact our Sales Department at (866) 693-3687 x202 or via email for information on other formats.


Extensible Markup Language (XML) is a relatively new format, specifically aimed at being extensible and content-driven. In recent years, XML standards have rapidly been adopted into the accessibility industry, with Digital Talking Books and NIMAS files as the front runners of that adoption. Extensible by design, XML standards can be created to fit a specific need, or an existing standard can be tailored to suit various needs.

Additionally, the DAISY Consortium has recently adopted a modular extension for the inclusion of MathML in Digital Talking Books. MathML is an XML specification designed for the accurate presentation of complex mathematics and science structures. Traditionally, all complex mathematics content would need to be rendered as an image, preventing access to individuals with print disabilities. With the adoption of this modular extension, this is no more! Members of gh worked extensively with the DAISY Consortium in the development of this modular extension and gh has already authored a number of MathML-embedded titles.

As leaders in the push for the Digital Talking Book and NIMAS specifications, gh is an industry leader in XML formats and conversion services. Our experts can guide you through the conversion process, as well as design new specifications to suit your needs, all with the speed and accuracy our customers have come to expect.


Screen showing the text HTML

HTML (Hypertext Markup Language) is one of the most common formats used today. Most web pages are authored in HTML, as well as various other types of content, such as textbooks and manuals. HTML is similar to XML in many ways (the related XHTML format is XML-based), particularly in that it is a semantic-oriented format, aiming less for presentation and more for the structure of the content.

While HTML is primarily a semantic format, visual styles can be applied using Cascading Style Sheets (CSS). gh staffs a number of CSS specialists, which allows for end content to be visually represented for any audience, be they low vision, color blind, or otherwise. Our CSS processes also allow for converted HTML to match its source appearance—an online textbook that looks the same as its print counterpart.

Much care is needed to maintain accessibility in HTML, regardless of its end use. This is of such importance that parts of the Section 508 guidelines specifically reference HTML. Using our proprietary conversion method, gh ensures that the HTML content we deliver meets all accessibility requirements and exceeds customer expectations.

RTF and Word

Rich Text Files (RTF) are a special format that is most commonly used in conjunction with Microsoft Word. The RTF specification allows for visual styling, embedded images, and offers many of the common output features of a word processor, like Microsoft Word.

RTF is relied upon greatly for Braille translation. Often publishers provide RTF files of their books to Alternative Media Centers specifically for the production of Braille. These Braille-ready RTF files are a speciality of gh, where Braille professionals are always on hand to ensure the RTF files are perfectly suited for Braille translation.


Adobe's Portable Document Format (PDF) is a cross-platform format that emphasizes portability. Many businesses and government agencies offer reports, forms, and brochures as PDF files only. Consequently, it is important that these files can be accessed by everyone. Our accessible PDFs have the following features:

  • alternative text descriptions
  • searchable text
  • proper document structure
  • correct reading order
  • navigational aids

More Formats

Because our Media Conversion Process is streamlined, we can work with many different types of files. If you have content that needs to be converted to a format not listed here, let us know.