Drawboard PDF: How to insert signatures January 07, 2021 00:38 Updated Follow Select the Signature tool from Insert section on the Advanced Tool Drawer. Add or choose an existing signature and save it once you fill in the details. Finally, tap or drag on the area of the document you want to apply. Related articles Drawboard PDF: How to select annotations Drawboard PDF: Pen and ink settings Drawboard PDF: How to insert and edit text Drawboard PDF: How to flatten form fields and annotations Drawboard PDF: Re-arrange document tabs and pages