Martin Bailey has worked on PDF subset standards since 1994, starting with PDF/X in CGATS and then in ISO. He’s currently the UK’s primary representative to the ISO PDF/X and PDF/VT committees, amongst others. He was project editor for PDF/VT-3 and is chair of the PDF Association’s PDF/VT TWG and co-chair of the PDF TWG. In his spare time does some work for Global Graphics Software, widely used in prepress and in digital front ends for digital production presses.