Version 6.7.3

Release Date: 2016.11.30

##Bug fixes:

• Fixes a problem with double tap to zoom in some cases. This requires an update to the framework and the tools.
• Fixes a problem with moving annotations when in a continuous view mode on pages > 1 works correctly.
• Fixes a problem in the thumbnail control that would result in some thumbnails not showing up when run on iOS 10+.
• Fixes problem in the floating signature tool where the signature wasn't visible when being drawn.
• Fixes a problem where find text wouldn't reposition the view to show found text.
• Updates the Swift sample to properly resize during device rotation.