To replicate, simply try this project here: https://github.com/rajeejones/PDFSignature.git and change the Podfile to use 2.1.2 v.s. 2.1.1. In 2.1.2, the bottom 90% of the image is clipped, but if you scale up the touchDrawView to dimensions similar to the iPhone screen, then it will show the whole image on "Add Signature"
To replicate, simply try this project here: https://github.com/rajeejones/PDFSignature.git and change the Podfile to use 2.1.2 v.s. 2.1.1. In 2.1.2, the bottom 90% of the image is clipped, but if you scale up the touchDrawView to dimensions similar to the iPhone screen, then it will show the whole image on "Add Signature"