1. First, write the name of the electronic signature on paper, take photos with the camera and send the photos to the computer. 2.PS will open the photo taken. 3. Click Select on PS, and then click the color range in the pop-up tab. 4. The interface of color range will pop up, drag it to the right, then select the sampling color, click the signature of the picture with the mouse, and click the darker place. 5. You can see that the fonts in the color range turn white, and other positions are black. Click on the black word of the photo text to make the font within the color range clear, and then click OK. 6. press Ctrl+J to copy a layer. 7. After hiding the background layer, you can see the electronic signature. 8. Click the file and save it in the format used by the website.

Electronic signature is an electronic code. In 2005, the Electronic Signature Law was promulgated and implemented. Electronic signature refers to any electronic technical means that can prove the identity of the parties and approve the contents of documents in electronic communication, which can be called electronic signature. The purpose of electronic signature is to sign the electronic version of Mid-Autumn Festival greeting cards, invitations and construction contracts. An electronic signature is not a digital image of a written signature. It is actually an electronic code, through which the recipient can easily verify the identity and signature of the sender on the Internet. It can also verify whether the original text of the file has changed during transmission. If someone wants to send an important document to people in other places through the Internet, both the recipient and the sender need to apply for an electronic license from the licensing authority CA(GlobalSign). This encryption certificate includes the applicant's public key on the Internet, that is, the "public computer password", which is used for file verification. Electronic signature is the general name of modern authentication technology. According to the Uniform Electronic Transactions Act of the United States, "electronic signature" refers to "an electronic sound, symbol or program associated with or logically associated with an electronic record, which is signed or adopted by someone for signing an electronic record".