: Improved navigation within and between documents.
: Split, merge, and organize pages within documents. : Improved navigation within and between documents
: Add virtual sticky notes, highlight, underline, and strike out text without changing the underlying document. and manage interactive PDF forms
: Encrypt and protect files with 128-bit encryption. Version 5.9 Updates : Improved navigation within and between documents
: Create, fill out, and manage interactive PDF forms, including support for JavaScript and dynamic XFA forms.
Version 5.9 and its sub-updates (like 5.9.89) introduced specific improvements: