PDFTron WebViewer

Class: Annotation

Core.Annotations. Annotation

Represents an annotation.

new Annotation( [initializer])

The base class for all annotations
Parameters:
Name Type Argument Description
initializer object <optional>
 A map of values to auto-initialize certain properties of the annotation. You can only initialize properties defined on the annotation under the Members section (unless specified otherwise).

Members

<static> MeasurementDisplayFormats

An object containing the different display formats for measurement annotations.
Type:
  • string
Properties:
Name Type Description
DECIMAL string Decimal format eg. 12.75
FRACTION string Decimal format eg. 12 3/4
ROUND string Decimal format eg. 12.8
TRUNCATE string Decimal format eg. 12.7
Example
const fractionMeasurementDisplayFormat = Annotations.Annotation.MeasurementDisplayFormats.FRACTION

<static> MeasurementSystems

An object containing the different measurement systems for measurement annotations.
Type:
  • string
Properties:
Name Type Description
METRIC string The Metric measurement system
IMPERIAL string The Imperial measurement system
TYPOGRAPHIC string The Typographic measurement system
Example
const metricMeasurementSystem = Annotations.Annotation.MeasurementSystems.METRIC

<static> MeasurementUnits

An object containing the different display measurement units for measurement annotations.
Type:
  • string
Properties:
Name Type Description
MM string Millimeter measurement unit
CM string Centimeter measurement unit
M string Meter measurement unit
KM string Kilometer measurement unit
IN string Inch measurement unit
FT string Foot measurement unit
YD string Yard measurement unit
MI string Mile measurement unit
PT string Point measurement unit
DOUBLE_PRIME_IN string Inch" measurement unit
PRIME_FT string Foot' measurement unit
FT_IN string Foot and Inch measurement unit
Example
const centimeterMeasurementUnit = Annotations.Annotation.MeasurementUnits.CM

Author

The author of the annotation.
Type:
  • string

Color

Gets or sets the annotation's stroke color.
Type:

DateModified

Gets or sets the date that the annotation was last modified.
Type:
  • Date

elementName

Gets or sets the name of the annotation element in XFDF.

This property cannot be initialized through the initializer.

Type:
  • string

Height

Gets or sets the height of the annotation.
Type:
  • number

Hidden

Gets or sets whether the annotation is hidden.
Type:
  • boolean

Id

A unique identifier for the annotation. Corresponds to the name attribute in XFDF.
Type:
  • string

InReplyTo

The Id of the annotation that this annotation is replying to or the parent annotation it is grouped with.
Type:
  • string

Invisible

Gets or sets whether the annotation is invisible, only if it is an unknown annotation type. Generally for hiding annotations you should use "Hidden".
Type:
  • boolean

IsAdded

Gets or sets whether the annotation has been added since the last time the AnnotCommand was retrieved.
Type:
  • boolean

IsClickableOutsideRect

Gets or sets whether any parts of the annotation drawn outside of the rect are clickable.
Type:
  • boolean

IsDeleted

Gets or sets whether the annotation has been deleted since the last time the AnnotCommand was retrieved.
Type:
  • boolean

IsModified

Gets or sets whether the annotation has been modified since the last time the AnnotCommand was retrieved.
Type:
  • boolean

Listable

Gets or sets whether the annotation should be listed in annotation lists. If set to false the annotation also will not be selectable.
Type:
  • boolean

Locked

Gets or sets whether the annotation is locked or not. If it's locked it can't be edited or deleted, but the note can be edited.
Type:
  • boolean

LockedContents

Gets or sets whether the annotation contents are locked or not. If the contents are locked then note can't be edited but the annotation can be edited or deleted.
Type:
  • boolean

MaintainAspectRatio

Gets or sets if the annotation maintains aspect ratio when being resized.
Type:
  • boolean

NoDelete

Gets or sets if this annotation can be deleted.
Type:
  • boolean

NoMove

Gets or sets whether or not the annotation can be moved.
Type:
  • boolean

NoResize

Gets or sets if this annotation can be resized by the user.
Type:
  • boolean

NoRotate

Gets or sets if this annotation rotates with the page.
Type:
  • boolean

NoView

Gets or sets whether the annotation is visible on the screen. Differs from Hidden in that it can still be printed if the print flag is set.
Type:
  • boolean

NoZoom

Gets or sets if this annotation scales with the page.
Type:
  • boolean

PageNumber

Gets or sets the page number of a document that the annotation appears on.
Type:
  • number

Printable

Gets or sets whether the annotation should be displayed when printing the page.
Type:
  • boolean

ReadOnly

Gets or sets whether the annotation is readonly or not. If it's readonly it can't be edited or deleted.
Type:
  • boolean

ReplyType

The type of reply.
Type:
  • string

Rotation

Gets or sets the annotation's clockwise rotation in degrees. Valid values are 0, 90, 180 and 270. Only applies to Stamp, FreeText and Caret annotations.
Type:
  • number

RotationControlEnabled

Enables or disables the annotation's rotation control.
Type:
  • boolean

selectionModel

Gets or sets a selection model constructor for how an annotation gets selected.
Type:

Subject

Represents the subject of the annotation. Default is the annotation's type.
Type:
  • string

ToggleNoView

Gets or sets whether the ToggleNoView flag is set on the annotation.
Type:
  • boolean

ToolName

The name of the tool that is used to create this annotation.
Type:
  • string

Width

Gets or sets the width of the annotation.
Type:
  • number

X

Gets or sets the annotation's x-axis position.
Type:
  • number

Y

Gets or sets the annotation's y-axis position.
Type:
  • number

Methods

addCustomAppearance(doc [, options])

Adds a custom appearance to the annotation so that the annotation appears like the specified PDF page or object in the PDF page. This appearance will be used instead of the default WebViewer drawing of the annotation.
Parameters:
Name Type Argument Description
doc Core.Document the PDF document object.
options object <optional>
 An object that can contain the following optional parameters.
Properties
Name Type Argument Default Description
pageNumber string <optional>
 1 Page number of source document to use for custom appearance.
objnum string <optional>
 The object number from the appearance document.
gennum string <optional>
 The generation number from the appearance document.
transparentBackground string <optional>
 Transparent background, default is true.

adjustRect()

Adjusts the annotation's bounding rectangle to take into account changes to the annotation e.g. stroke thickness, start/end points, etc

deleteCustomData(key)

Deletes custom data associated with the given key.
Parameters:
Name Type Description
key string The key for which to delete the associated data.

deserialize(element, pageMatrix)

Deserializes the xml element into the annotation
Parameters:
Name Type Description
element Element an xml element representing the annotation
pageMatrix object the page matrix used to convert PDF coordinates to XOD coordinates.

disableRotationControl()

Disables the rotation control for the annotation

draw(ctx, pageMatrix)

Draws the annotation on the provide canvas context, relative to the page. The point (0,0) coresponds to the top left corner of the page.
Parameters:
Name Type Description
ctx CanvasRenderingContext2D The canvas context prepared to be drawn on.
pageMatrix object The page matrix for the page that the annotation is on. You can get this object by calling getPageMatrix on the document object.

enableRotationControl()

Enables the rotation control for the annotation

getAssociatedNumber()

Gets the number associated with this annotation, if any.
See:
Returns:
The number associated with this annotation. If no number is associated then undefined is returned.
Type
number | undefined

getAttachments()

Gets the attachments of the annotation.
Returns:
Type
Array.<Core.Annotations.Annotation.AnnotationAttachment>

getContentEditAnnotationId()

Returns the Content Annotation Id associated with a FreeText annotation that is used for inline editing, if there is one.
Returns:
Type
string

getContentEditingFormat()

Returns the content editing format for the content editing placeholder. These are used to determine properties for inline editing styles.
Returns:
The content editing format
Type
Core.Annotations.Annotation.ContentEditingFormat

getContentEditType()

Returns the content edit type, if there is one. Only applicable to content edit placeholder annotations.
Returns:
Type
string

getContents()

Gets the text content for the annotation. Contents may be displayed in an annotation's popup or directly on the page (in the case of FreeTextAnnotation).
Returns:
the text content for the annotation.
Type
string

getContentStyleProperties()

Returns the content style properties for the content editing placeholder
Returns:
The content style properties
Type
Core.Annotations.Annotation.ContentStyleProperties

getCustomData(key)

Returns custom data associated with the given key.
Parameters:
Name Type Description
key string The key for which to retrieve the associated data.
Returns:
value The custom data. If no data is available an empty string is returned.
Type
string

getFormFieldPlaceHolderType()

Returns what type of form field place holder it is, if it is a form field place holder
Returns:
Form field place holder type as described by the Form Field Annotations enum
Type
string

getGroupedChildren()

Gets the list of group children to this annotation.
Returns:
The list of group children
Type
Array.<Core.Annotations.Annotation>

getHeight()

Gets the height of the annotation.
Returns:
the height of the annotation.
Type
number

getInternal()

Returns true if annotation is part of the original document, false otherwise.
Deprecated:
  • Since version 8.3. Use isInternal instead.
Returns:
Whether the annotation is internal to the document or not
Type
boolean

getPageNumber()

Gets the page number of the annotation. Note: page number starts from 1.
Returns:
The annotation's page number
Type
number

getRect()

Get annotation bounding rectangle
Returns:
Type
Core.Math.Rect

getRectPadding()

Gets the padding that will be applied by default on the annotation's rectangle.
Returns:
The amount of padding
Type
number

getReplies()

Gets the list of replies to this annotation.
Returns:
The list of replies
Type
Array.<Core.Annotations.Annotation>

getRichTextStyle()

Gets the rich text style of the annotation.
Returns:
the current rich text style
Type
Core.Annotations.Annotation.RichTextStyle

getStatus()

Gets the status of the annotation, and returns an empty string if no status set.
Returns:
The last status update.
Type
string

getWidth()

Gets the width of the annotation.
Returns:
the width of the annotation.
Type
number

getX()

Gets the x position measured in page coordinates of an annotation.
Returns:
the x position
Type
number

getY()

Gets the y position measured in page coordinates.
Returns:
Type
number

hasRotationControlEnabled()

Returns true if the rotation control is enabled for the annotation and false otherwise.
Returns:
Type
boolean

isContentEditPlaceholder()

Returns whether the annotation is a content editing placeholder, which are annotations used as placeholders for content edit boxes when the content editing tool is active
Returns:
Whether the annotation is a content edit placeholder or not
Type
boolean

isFormFieldPlaceholder()

Returns whether the annotation is a form field place holder annotation, which are annotations used as place holders for fields in the Form Field Creation mode
Returns:
Type
boolean

isGrouped()

Gets whether the annotation is a child of a group
Returns:
Returns true if the annotation is a child of a group, false otherwise.
Type
boolean

isInternal()

Returns true if annotation is part of the original document, false otherwise.
Returns:
Whether the annotation is internal to the document or not
Type
boolean

isPrintVisible()

Whether the annotation is visible on the document or not **when printed**. If Hidden or if the annotation is a reply to another annotation then it won't be visible.
Returns:
Whether the annotation is visible on the document or not when printed
Type
boolean

isReply()

Gets whether the annotation is a reply to another annotation.
Returns:
Returns true if it does reply to another annotation, false otherwise.
Type
boolean

isUncommittedContentEditPlaceholder()

Returns whether the annotation is an uncommitted content editing placeholder, which are annotations that will become document content but were not committed yet.
Returns:
Whether the annotation is an uncommitted content edit placeholder or not
Type
boolean

isVisible()

Whether the annotation is visible on the document or not **when viewing**. If the Hidden or NoView flags are set, or if the annotation is a reply to another annotation then it won't be visible.
Returns:
Whether the annotation is visible on the document or not when viewing
Type
boolean

move(rect)

Move the annotation based on a new given Core.Math.Rect. Use this method instead of setRect when internal properties (other than x, y, width and height) need to be modified on move.
Parameters:
Name Type Description
rect Core.Math.Rect the new bounding rectangle

removeCustomAppearance()

Removes the custom appearance of the annotation.

resize(rect)

Resize the annotation based on a new given Core.Math.Rect. Use this method instead of setRect when internal properties (other than x, y, width and height) need to be modified on resize.
Parameters:
Name Type Description
rect Core.Math.Rect the new bounding rectangle

resourcesLoaded()

Resolves when all required resources have finished loading. Currently only applicable to stamp annotations that use images.
Returns:
A promise that resolves when the resources have finished loading
Type
Promise.<void>

serialize(element, pageMatrix)

Serialize the annotation to an xml element
Parameters:
Name Type Description
element Element an xml element representing the annotation
pageMatrix object the page matrix used to convert XOD coordinates to PDF coordinates.
Returns:
the resulting xml element representing the annotation
Type
Element

setAssociatedNumber(number)

Sets the number to be associated with this annotation.
Parameters:
Name Type Description
number number The number to be associated with this annotation.
See:

setAttachments(files)

Sets the attachments of the annotation.
Parameters:
Name Type Description
files Array.<(File|Core.Annotations.Annotation.AnnotationAttachment)> Array of attachments data.

setContents(value)

Set the text content for the annotation. Note that this will not refresh the text in the UI.
Parameters:
Name Type Description
value string the text content to be set

setCustomData(key, value)

Sets the custom data associated with the specified key.
Parameters:
Name Type Description
key string The key under which to store this custom data. Data will automatically be saved in the exported XFDF and merged into the PDF when downloading.
value string The custom data to store

setHeight(value)

Sets the height of the annotation.
Parameters:
Name Type Description
value number the height of the annotation.

setModified( [shouldKeepAppearance])

Flags the annotation as modified if it has been before the last call to exportAnnotationCommand Removes the annotation's appearance if no parameter is passed Should be called if changing a custom property on the annotation that is used for serialization Otherwise the annotation will serialize the original deserialized value
Parameters:
Name Type Argument Description
shouldKeepAppearance boolean <optional>
 If true then the annotation's appearance will be maintained

setPageNumber(value)

Sets the page number of the annotation. Note: page numbers start from 1.
Parameters:
Name Type Description
value number the page number to be set

setRect(rect)

Sets the size and location of the annotation's bounding rectangle. Use this method instead of resize when only the x, y, width and height needs to be modified. Beware: this method ignores coordinates if they are the wrong way around. (It hasn't been fixed for reasons of maintaining backward compatibility. use setRectWithNormalization instead if you want it to reverse the wrong-way-round coordinates instead of ignoring them.)
Parameters:
Name Type Description
rect Core.Math.Rect the new bounding rectangle

setRectWithNormalization(rect)

Sets the size and location of the annotation's bounding rectangle. Use this method instead of resize when only the x, y, width and height needs to be modified. Use setRectWithNormalization instead of setRect if you want to reverse any wrong-way-round coordinates instead of ignoring them.
Parameters:
Name Type Description
rect Core.Math.Rect the new bounding rectangle

setRichTextStyle(richTextStyle)

Sets the rich text style of the annotation. New style will replace the old one
Parameters:
Name Type Description
richTextStyle Core.Annotations.Annotation.RichTextStyle The new rich text style of the annotation

setRotationControlEnabled(rotationControlEnabled)

Enables or disables the rotation control for the annotation
Parameters:
Name Type Description
rotationControlEnabled boolean true if the rotation control should be enabled
Deprecated:
  • since version 8.0 Please use enableRotationControl or disableRotationControl instead

setWidth(value)

Sets the width of the annotation.
Parameters:
Name Type Description
value number the width of the annotation.

setX(value)

Sets the x position measured in page coordinates of an annotation.
Parameters:
Name Type Description
value number the x position

setY(value)

Sets the y position measured in page coordinates.
Parameters:
Name Type Description
value number the y position

updateRichTextStyle(object [, startIndex] [, endIndex])

Update the rich text style of the annotation. Can provide a range to set the which characters the style should apply to
Parameters:
Name Type Argument Description
object Core.Annotations.Annotation.StyleObject The new rich text style of the annotation
Properties
Name Type Description
'underline' boolean boolean value for whether string should be underlined
'line-through' boolean boolean value for whether string should be strike through
'font-weight' string String for the font weight of the rich text (can be 'bold')
'font-style' string String for font style of the rich text (can be 'italic')
'color' string string for what color to set text to
startIndex number <optional>
 Starting character to apply style, if null apply to every character
endIndex number <optional>
 Last character to apply style. If null, apply till end

Type Definitions

AnnotationAttachment

An object that represents an annotation attchment.
Type:
  • Object
Properties:
Name Type Argument Description
name string Name of the attachment
size number Size of the attachment
type string MIME type of the attachment
content string <optional>
 Compressed data of the attachment
url string <optional>
 URL pointing to the attachment saved on cloud
Example
{
  name: 'test_image.png',
  size: 1024
  type: 'image/png',
  content: '789CAD79075453DBD62E2DF',
}

ContentEditingFormat

an object that contains content editing properties which apply to selections of text while inline editing.
Type:
  • Object
Properties:
Name Type Description
bold boolean Whether or not the selection of text is bold
color Core.Annotations.Color The color of the selection of text
italic boolean Whether or not the selection of text is italic
underline boolean Whether or not the selection of text is underlined
Example
{
 bold: false,
 color: new instance.Core.Annotations.Color('#424242'),
 italic: false,
 underline: false,
}

ContentStyleProperties

an object that contains content style properties from a content editing annotation.
Type:
  • Object
Properties:
Name Type Description
fontFamily string the font family of the text content
fontSize string the font size of the text content
textAlign string the alignment of the text content
Example
{
 fontFamily: 'SourceSansProSemiBold',
 fontSize: '30pt',
 textAlign: 'left'
}

RichTextCSSStyle

Type:
  • Object
Properties:
Name Type Argument Description
'font-style' 'normal' | 'italic' <optional>
'font-weight' 'normal' | 'bold' <optional>
'text-decoration' 'word' | 'line-through' | 'underline' | string <optional>
 text-decoration: 'word' is equivalent to text-decoration: 'underline'. Values of text-decorations can also be joined by a space. For example, text-decoration: 'word line-through'
color string <optional>
 color in RGB hex format

RichTextStyle

an object that maps between a text style location(character index) to css styles.
Type:
Example
{
  0: {
    'font-weight': 'bold',
    'color': '#ff0000',
  },
  10: {
    'font-style': 'italic'
    'font-weight': 'bold',
    'color': '#0000ff',
  },
  12: {
    'text-decoration': 'underline',
  }
}

this object means that the first 9 characters are bold and red, the following 2 characters are italic, bold, and blue, and the rest of characters have underline.