Roman Numeral page numbering in Adobe Acrobat Pro

Press Ctrl + J and enter the following script into the console, then press Ctrl + A, then Ctrl + Enter

// Function to convert integer numbers to Roman Numerals
function convertToRoman(num) {
    if (typeof num !== 'number' || num < 1) return "";
    var digits = String(+num).split(""),
        key = ["","C","CC","CCC","CD","D","DC","DCC","DCCC","CM",
               "","X","XX","XXX","XL","L","LX","LXX","LXXX","XC",
               "","I","II","III","IV","V","VI","VII","VIII","IX"],
        roman = "",
        i = 3;
    while (i--) {
        roman = (key[+digits.pop() + (i * 10)] || "") + roman;
    }
    return Array(+digits.join("") + 1).join("M") + roman;
}

// Main execution loop
try {
    var totalPages = this.numPages; 
    
    for (var i = 0; i < totalPages; i++) {
        // Human page number calculation
        var romanString = convertToRoman(i + 1); 
        
        // Convert to lowercase ("page i"). For uppercase ("Page I"), delete .toLowerCase()
        romanString = romanString.toLowerCase(); 
        
        // Assemble final text string
        var pageNumText = "Page " + romanString; 
        
        // Stamp the text using Acrobat's Watermark feature
        this.addWatermarkFromText({
            cText: pageNumText,
            nTextAlign: app.constants.align.right,
            nHorizAlign: app.constants.align.right,   // Anchor to the right edge
            nVertAlign: app.constants.align.bottom,    // Anchor to the bottom edge
            nHorizValue: -18,                          // Corrected: 0.25" inward from right margin
            nVertValue: 9,                            // Corrected: 0.25" upward from bottom margin
            cFont: "Arial",
            nFontSize: 11,
            bOnTop: true,
            nStart: i,
            nEnd: i
        });
    }
    app.alert("Bottom-right page numbers added successfully!", 3);
} catch(e) {
    app.alert("An error occurred: " + e.message, 1);
}