For electronic signature, it is necessary to use image processing tools to modify the signature into a transparent format. First, you should add the electronic signature in wmf format to the software editor and electronic signature, and then add it to your software.

Construction engineering software is the abbreviation of Beijing Construction Engineering Zhiyuan Software Development Co., Ltd., which is a high-tech enterprise in China specializing in R&D, sales and promotion of construction engineering software. Its headquarters is located in the capital Beijing, adjacent to the hinterland of Zhongguancun High-tech Park. Electronic signature refers to the data contained in the data message in electronic form and accompanied by data used to identify the identity of the signer and show that the signer approves its content. Generally speaking, electronic signature is an electronic signature of electronic documents through cryptographic technology, which is not a digital visualization of written signature, but similar to handwritten signature or seal, and can also be said to be an electronic seal. The purpose of electronic signature is to sign the electronic version of Mid-Autumn Festival greeting cards, invitations and construction contracts.