Making sense of OneNote UWP’ OCR


OneNote’ ink to text is one of its most impressive feature, and although I don’t use it a lot, it was a welcome improvement when it was introduced to the App version last summer.

In addition to converting ink to text rather flawlessly, OneNote UWP manages to differentiate font sizes and colors, and keeps the portion of text highlighted.

You can ink to text at once, but ink is not searchable instantly

Oddly, whereas handwritten text can be converted instantly, it takes some time to be searchable. Actually, you need to be online, and it may take no less than 5 minutes before you can search for your ink.

Also, converting twice give odd results sometimes :

Not so smart, actually !


What’s more of a concern, is that text inked in OneNote UWP can’t be “inked to text” in OneNote desktop. Nor is it searchable there…

The opposite is not true nevertheless, meaning any handwritten text in OneNote desktop is searchable in OneNote UWP :

Results are shown differently, whether the text was handwritten in the UWP (right) or desktop (left) version.


This means that OneNote UWP’ ink format is not fully compatible with the desktop version… (or retro-compatible, since the desktop version is older).

One last detail : OneNote UWP highlights the first result in grey, and the subsequent in yellow :

See the first occurrence of the word “desktop” highlighted in grey – written in OneNote desktop – in OneNote’ UWP client (on the left). Note also that in OneNote desktop (on the right side) : text handwritten in OneNote UWP (on the right column) is not parsed by the search command : retro-compatibility issue !


LIRE AUSSI  Anchor ink annotations to picture ?

Sometimes also, the search if shown differently (as a selection in a resizable box) :

Note also that the left pane says “no result for your search”, despite two occurence found and “highlighted” ?!


As a conclusion, I would not dare to use the same wording than Microsoft, which says that “OneNote for Windows 10…dramatically improved ink-to-text option”, but it’s great to have this feature finally available in OneNote UWP.

And although it behaves distinctly in OneNote desktop / UWP, and is plagued with retro-compatibility issue, you may enjoy the reliability of ink to text with no hassle if you stick to one version !


Further reading : Free vs Paid OCR article from MakeUseOf


Nota 11/09/2018 : OneNote UWP can OCR handwritten documents, provided you scan them with Office Lens :

The word “scanned” is perfectly highlighted.
“smart” is highlighted with an offset. Even if I set the picture to its “original size” (in OneNote desktop, where this option exists), it doesn’t fix the offset.









It can be tempting to scan documents with a scanner (useful when you need to scan several pages, or if you want to benefit from a better quality scan), and send them to OneNote through the “Send to OneNote” printer : in this case though, I doubt OneNote will be able to OCR handwritten text…

Nota 06/12/2018 : OneNote desktop can convert all handwritten text (“ink”) to text at once : right click any where on the note, and select “ink to text”. This option does not exist in OneNote UWP.

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