Undo broken when annotating PDFs

When annotating PDF documents in DEVONthink Pro Office, it is impossible to undo anything because the undo stack is still filled with stuff that you did before opening the PDF. New actions are not put into the stack. OTOH, undo is available when annotating e.g. web page archives.

Thanks for the feedback! PDF annotations do not yet support un/redo, only adding/editing/deleting. However, a future release will improve this.