Supported Annotation Types

PSPDFKit Document Engine supports all common annotation types:

• Link

• Highlight, Underline, Strikeout, Squiggle

• Text

• Callout

• Ink

• Ellipse, Rectangle, Line, Polyline, Polygon

• Note

• Widget (requires the Form Filling component)

• Image

• Stamp

• Redaction (requires the Redaction component)

• Media

These are standard annotations (as defined in the PDF Reference) that can be read and written by many apps, such as Adobe Acrobat and Apple Preview.