SysInfo PDF Bates Numberer Tool is a Windows-compatible utility for adding sequential identification numbers to PDF pages in bulk. It allows users to define numbering sequences, prefixes, suffixes, digit lengths, and stamp positions according to document requirements. The software also supports custom fonts, confidential labels, date and time stamps, and background text. Users can adjust page margins, orientation, and size, manage PDF encryption, and preview the Bates numbering before saving. Password-protected PDFs can be processed when the correct password is available, without requiring Adobe Acrobat installation.