This feature is supported by version 19.5. or greater The code uses some of the objects defined in The Business Layer. Loading of template documents from HTML with resources GroupDocs.Assembly provides a great feature which is loading of HTML template documents referencing external resource files to be assembled and saved to non-HTML formats. Since version 19.5, when loading an HTML document from a file, its containing folder is used as a base Uri to resolve external resource files’ relative Uris to absolute ones by default as shown in the following example....base URI to resolve external resource files’ relative URIs to absolute...external resource files’ relative URIs are overridden by an explicitly...