I have gone all over this website looking for a place where I can post a technical problem and let you know a suggested work around for images in PDF files doesn't exactly work. It pretty much sucks when you don't give some contact information for posting complaints so I am posting here.

Here's my observation. I periodically archive a working log book to dropbox that includes image files. There was no problem with the images that were imported in Goodnotes 4. You acknowledge there have been problems having to do with the Jpg file that is used for images in Goodnote 5 and suggest for Mac users to open in preview and save as a pdf. Guess what....it did not work with viewing within dropbox. I uploaded several different saves, one as a "generic pdf" to dropbox and the images were not viewable from within dropbox. If I subsequently downloaded the file from dropbox then the images could be viewed. Seems like there is more to this then simply the Jpeg standard.