Ron Bauerle's post in Bug: PDF thumbnails missing in note list was marked as the answer
Hi! Evernote recently discovered a bug with the PDF thumbnail generating processes. We have temporarily disabled PDF thumbnails while we implement the fix, but unfortunately I don't have an ETA for when that will be.
Ron Bauerle's post in Disable auto format was marked as the answer
I've been notified by the android team that they will be adding the option to disable autoformatting on android, unfortunately I don't know exactly when. For reference, the autoformatting article contains information on what autoformatting is supported on each platform and how to disable it (where possible).