Shooting a signature on a phone so it doesn't come out grey

Upload forms that want a scanned signature usually mean "dark ink on a white background", within a pixel size and a KB range. A phone photo of a signature on white paper rarely looks like that. The paper comes out grey, often darker in one corner, and the file is bigger than it should be. Here's what I worked out about why, and how to fix it at... Weiterlesen: Shooting a signature on a phone so it doesn't come out grey