Annotation Types
ComPDFKit PDF SDK supports all common annotation types:
- Note
- Link
- Free Text
- Shapes: Square, Circle, Line
- Markup: Highlight, Underline, Strikeout, Squiggly
- Stamp
- Ink
- Sound
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.