International Journal of Advances in Scientific Research and Engineering (ijasre) ISSN: 2454-8006 [Vol. 03, Issue 4, May -2017] www.ijasre.net 26 Journal Impact Factor (JIF): 2.712 Downloaded @ www.ijasre.net DIGITAL FORGERY M. N. O. Sadiku 1 , Sarhan M. Musa 1 , and S. R. Nelatury 2 1 College of Engineering Prairie View A&M University Prairie View, TX 77446 2 School of Engineering and Engineering Technology Pennsylvania State University Erie, PA 16563-1701 U.S.A ABSTRACT Forgery is the criminal act that provides misleading information about a product or service. It is the process of making, adapting, or imitating documents or objects with the intent to deceive. Digital forgery (or digital tampering) is the process of manipulating documents or images for the intent of financial, social or political gain. This paper provides a brief introduction to the digital forgery. Key words: Digital forgery, Digital tampering, Electronic forgery, Online forgery 1. INTRODUCTION Forgery has been defined as the crime of falsely altering or manipulating a document with the intension of misleading others. It may include the production of falsified documents or counterfeited items. Today, we live in the digital era, where digital technology has become predominant technology for creating, processing, transmitting, and storing information [1]. Digital forgery is falsely altering digital contents such as pictures, images, documents, and music perhaps for economic gain. It may involve electronic forgery and identity theft. The majority of digital forgery occurs because digitally altered pictures often appeal to the viewers' eyes. And with the availability of powerful, affordable picture-processing software (such as Adobe Photoshop, Adobe Premiere, Corel Draw, or GIMP), one can alter almost anything in a photo. For example, images of children (child pornography) involved in sexually explicit conduct can be created from innocent images, or even without the involvement of an actual child [2]. Digital techniques are notoriously more precise than conventional means of retouching because any area of the photo can be changed pixel by pixel. It is hard for humans to spot images that have been doctored in some way. Thus the common saying “seeing is believing” is no longer true in this digital age.