Create, edit, remove
Programmatic access via the API
Key capabilities
Import and export
Manage annotations in XFDF or JSON files
Cloudy annotations
Cloudy border effect
Extendable
Add editing, form fill, redaction, and more
What are annotations?
Content displayed as a PDF page isn’t suitable for easy editing, but the PDF specification defines a comprehensive set of objects that can be added to PDF pages without changing the page content. These objects are called annotations, and their purpose ranges from marking up page content to implementing interactive features such as forms.
Learn more
Essential guides
Import and export
Create annotations
Edit annotations
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