deletions | additions       diff --git a/3D in 2D.md b/3D in 2D.md  index 7859284..830ada1 100644  --- a/3D in 2D.md  +++ b/3D in 2D.md 
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PDF has the advantage of offering a printable equivalent of an onscreen document, but it is not clear for how much longer a printable version take precedence over intereactive features. As long as a 2D screenshot (or its equivalent) can be included in an archival "printable" version of a paper, it seems adviseable for a modern pubisher to support a range of 3D interactive options, not just PDF.