First, observe the display effect of stamps. The real seal is engraved on the surface of the object, and it can't be absolutely smooth. In the process of printing with inkpad, cover printing looks like many irregular white dots because of uneven ink, inconsistent strength and problems of white paper and desktop. Computer-made fake seals are generally very uniform red, and the whole seal has no color difference, impurities and blanks.
Secondly, the official seal represents the power image of the company, which is used most frequently and will not use too inferior materials. When using seals, it is clearly stipulated that a company can only have one official seal and one special financial seal.
However, to completely determine the authenticity of the seal, it is necessary to combine other identification methods, such as referring to the physical entity and specifications of the official seal. Therefore, the authenticity of the seal may not be judged entirely by pictures.