If you want a tool to add Bates numbers to any number of PDF files with the combination of pages of PDF files, then use the Sysinfo PDF Bates Numbering tool. The tool provides multiple formatting options to sequentially number pages with a reference number. Some of the tool's other features are: 

• You get multiple formatting options to sequence Bates numbers.
• Add Confidential text and current timestamp to the PDF pages.
• Customize Bates Number to encrypted/password-protected PDFs.
• Allows to preview Bates on Output PDF file before final results.
• Compatible and effective tool with all versions of Windows OS.