
Bates numbering is useful in legal and other industries that need all pages in a document collection to be labelled, accounted for and easy to locate. Bates nubering allows you to add unique numbering to pages in PDFs. You can apply a six-digit number that increments one number on each page. You can start the numbering at any point — meaning you can continue numbering on from one document to the next — and you can add other identifying information as prefixes or suffixes to the number (For related information see the edit PDF feature overview.) .

Units. Select CM, MM or Inches from the drop down.
Horizontal Position. Select the horizontal point of reference for the stamp. Use the right, left and center options to get the basic placement on the page, and then use the Horizontal field to control the precise placement.
Vertical Position. Select the vertical point of reference for the stamp. Use the right, left and center options to get the basic placement on the page, and then use the Vertical field to control the precise placement.
Rotation. Rotate your stamp by a value between -360° and 360°.
Opacity. Apply opacity to your stamps to create a watermark effect.
Underlay. Places the stamp below all objects on the PDF document.
Font type. Choose from either 'System' or 'Standard' font types. System refers to the fonts present on your computer.
Font Size. Set the size of your font.
Font Color. There are a number of standard colors to choose from. Click the drop down arrow to select a color. Choose 'Custom' to define a custom color. Colors are defined in the RGB color space.