SmileOnMyMac has updated PDFPen (http://www.smileonmymac.com/PDFpen/download.html), its PDF editing and form-filling tool for Mac OS X, to version 5.3. The update adds adds new security features, including 128-bit and 256-bit AES (Advanced Encryption Standard) encryption.
The changes in PDFpen 5.3 have also been made in PDFpenPro 5.3, 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 5.3 and PDFpen Pro 5.3 require Mac OS X 10.6 or later. Demo versions are available for download.