Page Labels (page_labels.java): ---------------------------------
Using class 'com.pdflib.pdflib' for running Cookbook example (pCOS Interface 13)
File name: ../input/articles.pdf
Page labels:
Page 1: 'a1'
Page 2: 'a2'
Page 3: 'a3'
Page 4: 'a4'
Page 5: 'a5'
Page 6: 'a6'
Page 7: 'a7'
Page 8: 'a8'
Page 9: 'a9'
Page 10: 'a10'