should be use the File version 13.0.8.1216
CrystalDecisions.CrystalReports.Engine.dll
CrystalDecisions.Shared.dll
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and the report should be 'set Default Export Options'
click 'File',
select 'Export',
select 'Default Export Options',
select 'PDF',
in Export option,
check 'Create bookmarks from group tree'
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In C#:
CrystalDecisions.Shared.PdfFormatOptions pdfOptions = new CrystalDecisions.Shared.PdfFormatOptions();
pdfOptions.CreateBookmarksFromGroupTree = true;