Hans, I have the following sample (sorry, but I’m afraid I don’t know how to write a lopp here): \setupinteraction[state=start] \setupcomment[location=inmargin] \showframe \starttext This is a sample comment. \startcomment Just a comment \stopcomment This is a sample comment. \startcomment[symbol=Comment] Just a comment \stopcomment This is a sample comment. \startcomment[symbol=Help] Just a comment \stopcomment This is a sample comment. \startcomment[symbol=Insert] Just a comment \stopcomment This is a sample comment. \startcomment[symbol=Key] Just a comment \stopcomment This is a sample comment. \startcomment[symbol=Newparagraph] Just a comment \stopcomment This is a sample comment. \startcomment[symbol=Paragraph] Just a comment \stopcomment This is a sample comment. \startcomment[symbol=Note] Just a comment \stopcomment \stoptext The /Rect entries are the following: /Rect [ 52.939237 702.3845 58.913537 708.3588 ] /Rect [ 9.183458 687.714 58.913537 696.3768 ] /Rect [ 35.19556 671.22738 58.913537 681.8377 ] /Rect [ 29.281004 659.0063 58.913537 667.2867 ] /Rect [ 38.44558 642.2687 58.913537 652.8671 ] /Rect [ -15.526249 627.83718 58.913537 638.579 ] /Rect [ 5.754209 613.4176 58.913537 624.15939 ] /Rect [ 34.538389 601.328 58.913537 609.6084 ] I don’t know how the lower-left x coordinate is calculated, but I think it should be the same for all annotation types. If location is in margin, the lower-left x coordinate should be around 35 user units. I have checked it with Acrobat Reader, evince, mupdf-gl, SumatraPDF and PDF.js (within Firefox). I think it makes sense to unify the lower-left x coordinate for this kind of annotation when located in margin. Many thanks for your help, Pablo -- http://www.ousia.tk