3 0 obj
<< /Type /Catalog
   /Pages 1 0 R
>>
endobj

3 0 obj
<< /Type /Catalog
   /Pages 1 0 R
   /PageLabels << /Nums [ 0 << /P (cover) >>
                          % labels 1st page with the string "cover"
                          1 << /S /r >>
                          % numbers pages 2-6 in small roman numerals
                          6 << /S /D >>
                          % numbers pages 7-x in decimal arabic numerals
                        ]
               >>
>>
endobj

gs
  -o modified-pagelabels-50pages.pdf
  -sDEVICE=pdfwrite
  -c "[ /Page 1 /Label (i)     /PAGELABEL pdfmark"
  -c "[ /Page 2 /Label (ii)    /PAGELABEL pdfmark"
  -c "[ /Page 3 /Label (III)   /PAGELABEL pdfmark"
  -c "[ /Page 4 /Label (four)  /PAGELABEL pdfmark"
  -c "[ /Page 5 /Label (v)     /PAGELABEL pdfmark"
  -c "[ /Page 6 /Label (|||||) /PAGELABEL pdfmark"
  -f 50pages.pdf

%PDF-1.6

29241 0 obj

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