A photo processing service is used for two main reasons. The first is to verify age and identity. The first is that visa applications can be time-consuming and difficult to follow. Even if you've organized everything correctly - gone through the proper channels, filled out the paperwork properly, etc. You may still need to submit a visa application, which can take several days or even weeks. In these cases, an automated system can quickly and efficiently process a large number of visa photos so that you can rest assured that your application is not only accurate but on schedule.