Hi, currently the accuracy of the trimbox and cropbox breaks preflighting. While the mediabox is rounded to four numbers after the point, the other boxes have 11 numbers. Without the same rounding these boxes can be greater than the mediabox, which is not valid. /MediaBox [0 0 612.2835 858.8976] /TrimBox [ 0 0 612.28345061002 858.89763362975 ] /CropBox [ 0 0 612.28345061002 858.89763362975 ] 858.8976 < 858.89763362975 There is also a small bug in the document info code. \def\synchronizebackendidentity {\ctxlua{backends.codeinjections.setupidentity{ title = \!!bs\@@iatitle\!!es, subtitle = \!!bs\@@iasubtitle\!!es, ^^^^ should be 'subject' here (or change it later in the lua part) author = \!!bs\@@iaauthor\!!es, creator = \!!bs ConTeXt - \contextversion\!!es, date = \!!bs\@@iadate\!!es, keywords = \!!bs\@@iakeyword\!!es, }}} Best wishes, Peter