[Paraview] Using VTK Filters with Programmable Filter

[Utkarsh Ayachit]

> If you do update it, is there a way to find that
> out (aside from downloading it again every so often). Thanks! -- Adam

We can put a revision number of sorts, on the PDF to know that the PDF
online is different from what you downloaded before. I am not sure how
to setup notifications that a new revision is available, however.