I've never tried using Acrobat Professional or 10.6, but with Adobe Reader and 10.5, I never got smart card support working on OS X before Reader 9.0. Starting with Reader 9.1, you don't need to add a PKCS#11 module as they use the system Keychain. If you're trying to use a DoD CAC/PIV card, you'll also need to load the DoD PKI certificates, as outlined in the post you linked. - David -----Original Message----- From: Ben Dugas Sent: Wednesday, March 24, 2010 3:13 PM To: smartcardservices-users@lists.macosforge.org Subject: [SmartcardServices-Users] Adobe and PKCS11 Module Has anyone gotten digital signing via cac card to work in Adobe Professional 8 using 10.6? I have tried to load both /usr/local/lib/pkcs11/libcoolkeypk11.dylib and /usr/libexec/SmartCardServices/pkcs11/tokendPKCS11.so as a module in Adobe following the instructions from http://lists.apple.com/archives/fed-talk/2008/Jan/msg00071.html It's unable to load either module. Any help would be appreciated. Thanks Ben