Callas has enhanced the standard HMTL language with missing features like definition of spot colors, ICCbased colors, page geometry boxes, output intent as well as barcodes. In addition there a special operators for pagination.
With these additional features it becomes possible to create high qualtity printing files using HTML. By using the ability to import PDF pages even imposition is possible.
pdfChip is a command line application without user interface. The product is mainly dedicated to developers and advanced users with good knowledge of HTML, CSS and PDF who want to create many high quality PDF documents in an automated way (e.g. by a Web2Print application).