Not possible.

--Shawn

To expand on what Shawn said...

Pattern fill colors are not a visual best practice.  Tableau was built from the ground up with best practices in mind....hence, not having this functionality.  Try using different shades of hue for printing purposes.

This will be a good read for you:  http://www.perceptualedge.com/articles/visual_business_intelligence/rules_for_using_color.pdf

Here is a hack that works Dueling Data: Pattern Fill Bar Chart in Tableau

Hi Norman and Shawn Wallwork

I was able to achieve this with a stacked bar chart and vertical bar chart.

The cross hatching shows the portion of operating time, in green, that was affect by performance loss.

It took some persistence but it works.

Jon Dugger, Tableau's notion of best practice does not align with business. You STILL cannot send a PDF in a scheduled report or force a page break.