I went back on my post on the other site. I tried again it works on all the patterns I have from Sue.
It is really important to firstly ungroup. (in object menu or shift ctrl g)
The do trace bitmap.
The path is on top and the image is below. Move over the path and then select image and delete.
Select the path image and set the stroke either use the fill and stroke menu under object menu or right click on the red across the bottom and set stroke)
If this does not work PM me the pattern and I will return. I will not copy or use as I respect all our pattern makers.
I just tried a couple of patterns that I purchased from Sue.1. Open the PDF page in Inkscape2. Select picture and ungroup.3. Trace Bitmap (under Path tool)4. Select the image and delete.5. Select the Path and set stroke to red. Note, You will have both a stoke and fill. Depending on the exact colour you want you may want to delete the fill.If you have any other questions please post.I hope Sue does all her patterns the same.