Electrical and electronic apparatus and instruments; computer hardware and computer peripheral devices; magnetic data carriers, recording discs; communications apparatus and instruments; printers; scanners; calculating machines, data processing equipment and computers; computer software; computer software for processing, previewing, analysing, and annotating PDF (portable document format) files; computer software for use in the fields of desktop publishing, electronic publishing, digital publishing, printing, proofing, graphic design, imaging, typesetting or electronic document display, storage or retrieval; computer programs for the creation, storage, capture, manipulation, conversion, transmission, distribution, retrieval, display, processing, managing, printing, proofing, editing and annotation of electronic documents; electronic publications; user manuals and instruction books in electric form