Adobe photoshop saves files in two formats. Files having 30,000 by 30,000 pixels in size are saved with PSD extension and files larger than PSD upto 300,000 by 300,000 pixels are saved with PSB extension known as “Photoshop Big”.
Learn more about this file format here
GroupDocs.Conversion (in GroupDocs.Conversion.dll) Version: 188.8.131.52 (21.8)
public static readonly ImageFileType Psb
Public Shared ReadOnly Psb As ImageFileType
static initonly ImageFileType^ Psb
static val Psb: ImageFileType