Thought the OneNote provide search feature, but it can't search inside of attachments.
OneNote Batch v21 add a feature to search inside of PDF attachments saved in OneNote.
"OneNote Batch" has a feature can search the content of attachments, it support to search .txt, .rtf, .doc, .docx, .ppt, .pptx, .xls, .xlsx attachments before version 21.
And "OneNote Batch" v21 add to support search inside PDF attachments.
- In OneNote Batch, click "Search" tab -> "Search" group -> "Search inside Attachments".
- In left notebook tree, check the notebooks which you want to search in.
- In search box, input the keyword, (separate multiple keywords with space).
- Finally, click the "Start" button, to start search the pdf attachments.
It will list all the PDF attachments after search completely.
In OneNote Batch, click the PDF attachment in list, it will jump to the OneNote page, and select the PDF attachment in OneNote.
Now, you can open or export the PDF attachment inside OneNote.