After entering the Yuandao Jingwei camera, click the watermark on the right to enter the watermark interface, click the close icon, and then remove the watermark.

Usually paper money, certificates, securities, food stamps, etc. All have watermarks to prevent counterfeiting. For example, in the left margin of the 20 15 version of 100 RMB, you can see the head image through the light, which is the watermark. The earliest watermark was created by paper makers in the Tang Dynasty in China at the end of the 8th century or the beginning of the 9th century. At that time, silk thread was woven on the bamboo curtain. The pattern is more prominent than the curtain surface, so the fiber interweaving in the corresponding parts is finer and the light transmittance is higher when making paper. The watermark effect is obtained. /kloc-In the 3rd century, Italian craftsmen also woven letters, numbers or patterns on the paper-making network, leaving watermarks as trademarks in the paper-making industry. On the paper machine, the wet paper is pressed with decoration _ (watermark _) to form a watermark. Decoration _ Various patterns or patterns can be carved as required.