How to add files to OneNote

Instead of actually printing the file onto paper, OneNote can send a digital image to your notebook. After the image is on the page, you can add notes to it.

1. Click Insert > File Printout.
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3. In the Choose Document to Insert dialog box, select the file that you want to insert. OneNote will print the contents of the file to the current page in your notebook.

Note:  If you want to insert a password-protected document, you’ll need to enter the correct password before the document will be printed to OneNote.

Files printed into OneNote appear as pictures. You can drag a picture to another place on the page and you can drag the file handles that appear around a picture to resize it.

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Copy text from a file printout

You can extract text from a file printout and paste it in your notes. This is useful if you want to make changes to the text or if you want to copy any part of the text into an email or other file, like a Word document.

1. Right-click the image, and then do one of the following:
   • Click Copy Text from this Page of the Printout to copy text from only the currently selected image (page).
   • Click Copy Text from All the Pages of the Printout to copy text from all the images (pages).
2. Click where you’d like to paste the copied text, and then press Ctrl+V.

Note:  The effectiveness of OneNote’s text recognition depends on the quality of the source formatting in the document or file you inserted. When pasting text that you copied from a picture or file printout, always look it over to make sure that your selection was recognized properly.

Credit : https://support.office.com/en-US/article/Add-files-to-OneNote-71a00b04-9419-4047-b319-b3b2e3bb32e2