I needed an easy way to add Bates numbers to multiple PDF files for office work, and PDF Champ PDF Bates Numbering Tool worked really well for me. I simply selected all the files, used the batch mode option, and the numbering continued properly across every page. It also allowed me to set a custom starting number and choose the position for the numbers. What made it easier was the preview option, because I could check everything before final processing. The original layout, text, and images stayed exactly the same. Personally, I found it a quick and reliable way to add Bates numbers to PDF files. Visit here: https://www.pdfchamp.com/pdf-bates-numbering/