2. Drag the handwritten signature picture into the PS.
3. Perform image adjustment color removal (SHIFT+CTRL+U) to make the signature image black on a white background.
4. Change the blending mode of the layer to positive overlay.
5. Perform image-adjustment-color scale (CTRL+L).
6. Select the white straw and click on the signature background.
7. Perform transformation (CTRL+T) to adjust the size and position of the signature.
accomplish
PS:
The file needs to be converted into a picture or PDF format.
To sign a chart, first remove the color (SHIFT+CTRL+U) to ensure that the signature is black on a white background.