Reprinted from TidBITS by permission; reuse governed by Creative Commons license BY-NC-ND 3.0. TidBITS has offered years of thoughtful commentary on Apple and Internet topics. For free email subscriptions and access to the entire TidBITS archive, visit http://www.tidbits.com/ PDFpen and PDFpenPro 5.9 Agen G. N. Schmitz Smile has updated both [1]PDFpen and [2]PDFpenPro to version 5.9, which improves overall performance by reducing memory usage as well as adds the OAuth secure authorization method for those using PDFpen's Save to Evernote capability. Additionally, both editions now utilize Apple's sandboxing for improved security and compatibility with the Mac App Store, though neither [3]PDFpen nor [4]PDFpenPro have been updated to version 5.9 in the Mac App Store as of this writing. ($59.95/$99.95 new with a 20-percent discount for [5]TidBITS members, free update, 47.4/48.4 MB) References 1. http://www.smilesoftware.com/PDFpen/ 2. http://www.smilesoftware.com/PDFpenPro/ 3. https://itunes.apple.com/us/app/pdfpen/id403624960?mt=12 4. https://itunes.apple.com/us/app/pdfpenpro/id403758325?mt=12 5. http://tidbits.com/member_benefits.html .