Apple's iOS and Google's Android both include tools for adding your signature onto a document.

Learn how to create a fillable form in Google Docs. You can insert checkbox, signature box, etc. in Google Docs using this guide.

Google Docs' drawing tool can be used to add a signature to your document, but it's more secure to use an add-on, like DocuSign or HelloSign.

Do you want to insert hand-drawn signature in a document? Learn how to add handwritten signature in Google Docs using three methods.