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UTF-8 HTML Documents

AlphaTrust e-Sign™ supports the use of HTML / XHTML documents encoded in UTF-8 format. UTF-8 is an encoding scheme for supporting Unicode text using 8 bit characters. This enables the full range of 16-bit Unicode characters to be used in HTML documents.

To use Unicode text in AlphaTrust e-Sign™ source document, you must save the HTML document in UTF-8 format. This is the international standard for Unicode HTML documents. 16-bit Unicode HTML documents are not supported by AlphaTrust e-Sign™. You MUST include the proper "Content-Type META tag for UTF-8 in your HTML source document or AlphaTrust e-Sign™ may not interpret the input document properly. The correct META tag for UTF-8 is:

META tag for UTF-8 Example

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />


Source documents validated by AlphaTrust e-Sign™ will be saved as ASCII text and character values above 127 (0x 007F) will be converted to HTML numeric entity references and the META content-type will be content="text/html; charset=iso-8859-1". This is done to support the widest range of browsers (HTML user agents) on the market. Many older browsers and small device browsers can't properly process UTF-8 encoded HTML pages.

Entity Reference Example #1

José Bärfuss would be written to the HTML file as Jos&#233; B&#228;rfuss.

Entity Reference Example #2

AlphaTrust™ would be written to the HTML file as AlphaTrust&#8482;.


Do not pass a Unicode formatted HTML file to AlphaTrust e-Sign™.