SmileOnMyMac has updated PDFPen (http://www.smileonmymac.com/PDFpen/download.html), its PDF editing and form-filling tool for Mac OS X, to version 5.5. The update adds several page numbering options.

Users can now specify header or footer positioning and alignment. Numbering options now include Roman numerals and letters. Bates Numbering for legal documents has been improved with with options for prefix, digit count and starting number. PDFpen 5.5 also adds initial support for full screen mode in Mac OS X 10.7 (“Lion”).

The changes in PDFpen 5.5 have also been made in PDFpenPro 5.5, the pro version that can also convert websites into PDFs, create fillable PDF forms, and construct document table of contents.

PDFpen costs US$59.95, and PDFpenPro is $99.95. Family pack licenses, which cover up to five computers in one household, are $74.95 for PDFpen and $129.95 for PDFpenPro. Upgrades from earlier versions of either application are $25, and free to users who purchased after Feb. 14, 2010. Upgrades from any version of PDFpen to PDFpenPro 5.0 are $40.

PDFpen 5.5 and PDFpen Pro 5.5 require Mac OS X 10.6 or later. Demo versions are available for download.