pdflatex "\AtBeginDocument{\usepackage[pdftex,displaymath,floats,active,tightpage]{preview}}\PassOptionsToPackage{noocg}{ocgtools} \def\ocgpreview#1#2{#2}\input ocgtools-preview " copy ocgtools-preview.pdf preview-temp.pdf pdflatex ocgtools-preview pdflatex ocgtools-preview pdflatex ocgtools-preview