Struct Annotation 

pub struct Annotation {

    pub annotation_type: String,
    pub subtype: Option<String>,
    pub subtype_enum: AnnotationSubtype,
    pub contents: Option<String>,
    pub rect: Option<[f64; 4]>,
    pub author: Option<String>,
    pub creation_date: Option<String>,
    pub modification_date: Option<String>,
    pub subject: Option<String>,
    pub destination: Option<LinkDestination>,
    pub action: Option<LinkAction>,
    pub quad_points: Option<Vec<[f64; 8]>>,
    pub color: Option<Vec<f64>>,
    pub opacity: Option<f64>,
    pub flags: AnnotationFlags,
    pub border: Option<[f64; 3]>,
    pub interior_color: Option<Vec<f64>>,
    pub field_type: Option<WidgetFieldType>,
    pub field_name: Option<String>,
    pub field_value: Option<String>,
    pub default_value: Option<String>,
    pub field_flags: Option<u32>,
    pub options: Option<Vec<String>>,
    pub appearance_state: Option<String>,
    pub raw_dict: Option<HashMap<String, Object>>,
}

A PDF annotation.

Represents all PDF annotation types per ISO 32000-1:2008, Section 12.5.

Fields

annotation_type: String

Type of annotation (always “Annot” for annotations)

subtype: Option<String>

Annotation subtype (Text, Highlight, Link, etc.)

subtype_enum: AnnotationSubtype

Parsed annotation subtype enum

contents: Option<String>

Text contents of the annotation

rect: Option<[f64; 4]>

Rectangle bounds [x1, y1, x2, y2]

author: Option<String>

Author/creator of the annotation (T entry)

creation_date: Option<String>

Creation date

modification_date: Option<String>

Modification date (M entry)

subject: Option<String>

Subject of the annotation

destination: Option<LinkDestination>

Link destination (for Link annotations) PDF Spec: ISO 32000-1:2008, Section 12.3.2 - Destinations

action: Option<LinkAction>

Link action (for Link annotations) PDF Spec: ISO 32000-1:2008, Section 12.6 - Actions

quad_points: Option<Vec<[f64; 8]>>

QuadPoints for text markup annotations (Highlight, Underline, StrikeOut, Squiggly) Each quad is 8 values: x1,y1, x2,y2, x3,y3, x4,y4 PDF Spec: ISO 32000-1:2008, Section 12.5.6.10

color: Option<Vec<f64>>

Color array (C entry) - RGB or other color space

opacity: Option<f64>

Opacity (CA entry) - 0.0 to 1.0

flags: AnnotationFlags

Annotation flags (F entry)

border: Option<[f64; 3]>

Border style array (Border entry)

interior_color: Option<Vec<f64>>

Interior color for closed shapes (IC entry)

field_type: Option<WidgetFieldType>

Field type for Widget annotations (FT entry: Btn, Tx, Ch, Sig)

field_name: Option<String>

Field name for Widget annotations (T entry) Note: This is different from author (also T entry) for other annotation types

field_value: Option<String>

Field value for Widget annotations (V entry)

default_value: Option<String>

Default value for Widget annotations (DV entry)

field_flags: Option<u32>

Field flags for Widget annotations (Ff entry)

options: Option<Vec<String>>

Options for choice fields (Opt entry)

appearance_state: Option<String>

Appearance state for checkboxes/radios (AS entry)

raw_dict: Option<HashMap<String, Object>>

Raw annotation dictionary for preserving unknown properties during round-trip.

This contains the complete original PDF dictionary, enabling faithful preservation of properties that aren’t explicitly parsed (appearance streams, popup references, vendor-specific extensions, etc.).

Trait Implementations

impl Clone for Annotation

fn clone(&self) -> Annotation

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Annotation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.