If you're looking to Download GraphoSign on your Chromebook laptop Then read the following guideline.

App GraphoSign is Namirial’s solution for mobile devices to avoid having to print a paper copy of a document just to capture a signature. It allows you to sign PDF documents directly on a tablet; moreover, it does not need any internet connection to open or sign the PDF: the application works completely offline. Once signed, the document can be shared via E-mail, AirDrop, DropBox, Messages or any other of the most common or custom methods of sharing. With App GraphoSign you can also: - add images (from camera or gallery) to the PDF document - modify annotations - add freehand text - fill form fields (if present) - sign the document (existing signature fields or on any free area of the PDF) - handle multiple signatures on the same document App GraphoSign requires a stylus to capture pressure while signing. The supported styluses are: - Bamboo™ Stylus Fineline (Wacom) - Bamboo™ Fineline 2 (Wacom) - Bamboo™ Fineline (Wacom) - Bamboo™ Sketch (Wacom) - Apple Pencil with iPad Pro e iPad 6th Gen For the complete list of supported device and stylus refer to support page https://support.namirial.com/en/docs/docs-tsp-biometric-signature/capturing-devices/#devices-ios