PDF Bearbeiten Mac is the German version of PDF Editor Mac, which enables users to edit PDF content like removing unwanted text or images, adding their own text and images, drawing lines, making annotations or rotating PDF pages etc. It also includes a built-in PDF page combining app allows users to merge several PDF files into one.
So you could use PDF Bearbeiten Mac for editing and annotating your PDF documents. And the saved PDF file will keep all of your annotations permanently. It is compatible with the latest Mac OS X versions.