Topic: Unload/Reload PDF Underlay Programmatically?

[rbtolles]

Want to unload/reload PDF Underlay without using External References palette.  So far no luck using LISP, Activex or for that matter just a simple command line sequence.
I can get unload/loaded status of PDF Underlay (definition's xdata), but manipulating the xdata and executing 'entmod' does not work.

[rbtolles]

Was able to figure it out.  For anyone who might find it helpful, LISP file with solution attached.

File:
PDF_LOAD.LSP

Command Functions:
PDFUNLOAD
PDFRELOAD