Your finger or a digital pen gives you freedom from a keypad when you're working on a touch device. In addition to drawing, writing and highlighting, Ink Editor lets you use natural gestures like circling to select and crossing out to delete.
Note: Pictures in this article are from Word 2016, but Ink Editor is also available in Word Mobile. Use it on Windows touch devices and devices that work with digital pens such as Microsoft Surface running Windows 10 TH2 or higher operating system.
Edit with natural gestures
Choose Draw > Ink Editor, and select a pen.
(If you don't have a digital pen enabled device and have a touch device instead, choose Draw with Touch > Ink Editor.)
Do any of the following to edit your document using natural gestures:
Circle to select text
Draw a circle around the text you want to select. You can select words, sentences or paragraphs. Now you can apply formatting like font color, bold, or italic.
Cross out to delete text
Draw a line thorough the text to delete it. Delete large chunks of text by drawing a diagonal line or up-and-down squiggles.
Choose a highlighter pen from the Pens group and draw across text to highlight the text. To remove the highlight draw across the text again.
Draw a curve to join two words. Be sure both ends of the curve touch the words you want to join.
Draw a vertical line within a word to split it in two.
Insert a word
Draw a caret between two words to insert text. After you draw the caret, write the words you want to add. When you're done writing, the text is inserted where you drew the caret.
Make a new line
Draw a backwards L shape. Text after the shape moves to a new line.
Note: If you wish to keep a record of your ink edits, you should turn on Track Changes in Simple Markup mode on the Review tab before you start reviewing your document using Ink Editor.
Tell us what you think about Ink Editor and suggest improvements
Submit suggestions for new actions or gestures you’d like to see in Ink Editor at https://word.uservoice.com/forums/304924-word-for-windows-desktop-application