Something I come across every so often is that you can't mirror a placed linked PDFs or DWGs.
I usually want this when I place a linked PDF or DWG into a worksheet or detail and I want to mirror to suit that arrangement I am working on.
My current workflow is to mirror the PDF in photoshop and reload that in which is just time-consuming, or explode the DWG, but this is a annoyance it I risk bringing in additional attributes.
It would be a very helpful little additional feature and could work well with some of the recent upgrade to linking multi-page PDFs recently introduced.
Open