You can do this in a few steps by selecting the Scan icon (it’s a camera icon) at the bottom of the OneDrive app, then selecting Document to scan the item. Click the white circle button to finish the scan, and then you can select the pen icon, and choose a color to sign or draw on the image. Once done, you can tap Done and enter a file name and save it. This file can then be shared later.
Learn more “OneDrive” tips by visiting onMSFT.com and reading Top 6 tips and tricks that’ll make you a Microsoft OneDrive professional