Yes, the feasibility of signature has nothing to do with the direction of signature, only with whether you signed it yourself or not, and whether it is your own name. You don't have to worry about this.

TouchPad (touchpad or TrackPad) is a widely used input device in notebook computers. Which controls the action of the pointer by sensing the movement of the user's finger. The touchpad can be regarded as a substitute for the mouse. Touchpads can also be found on other portable devices, such as personal digital assistants and some portable audio-visual devices. Due to design constraints, the touchpad is usually not larger than 20 square centimeters. Among them, Apple MacBookPro is equipped with the best multi-touch pad, which can be used for gesture operations such as zooming in and out of the display screen and handwriting input. It takes advantage of Apple's multi-touch technology. This technology was first developed and patented by FingerWorks (a small company in San Francisco and later acquired by Apple) and was first applied to iPhone.