To improve the sharpness of the cardholder and visitor pictures, you can increase the maximum file size for pictures that are stored in the Directory database.
The maximum file size applies to cardholder and visitor pictures and to all image data fields in Security Center. This setting also applies to the Import tool, and can be modified while running this tool. When loading image files, Security Center automatically reduces the image size so that their file size is under the limit you set.
The default value is 20 KB. You can set the limit anywhere between 20 and 5000 KB.
To define the maximum file size of pictures: