When OneNote isn’t recognizing notes from a scanned document, consider the following steps:

1. Check that the scanner settings are set to a high enough resolution and the document is scanned as a PDF document.


2. Ensure that the document is uploaded in OneNote.


3. Try re-scanning the document and uploading again to OneNote.


4. If possible re-arrange the document to use more relevant text formatting, such as using an important word as the headers, paragraphs, or sections.