I drew a very simple sketch using a cad program. It all worked very well on the SP. I exported the sketch to a PDF file. When I opened the PDF I noticed somethings I left off and wondered if I could fill it in with the stylus. I took the stylus and handwrote what I needed just as a reminder to make the correction and it worked fine. I saved the PDF. This morning when I opened it the handwriting with the stylus is a jumbled mess and unreadable. It was perfectly fine when I saved it. Very readable. The saved file handwriting is jumbled. Can this be done and still be readable? Did I skip a step?