PDFTron WebViewer

Class: XFDFUtils

Core.Annotations. XFDFUtils

new XFDFUtils()

The namespace for utility functions for XFDF serialization and deserialization.

Methods

<static> deserializeFringeRect(rectString, pageMatrix, separator)

Deserializes a fringe rect string into a rect object.
Parameters:
Name Type Description
rectString string Rect in string format.
pageMatrix Core.Math.Matrix Object representing the transformation matrix for the page.
separator string Separator used for coordinates. Defaults to ',' if not defined.
Returns:
New Rect with the x and y coordinates.
Type
Core.Math.Rect

<static> deserializeMeasure(measureDictionary)

Deserializes the measure XML element into a measure object.
Parameters:
Name Type Description
measureDictionary Element Measure element.
Returns:
Object with measure information.
Type
object

<static> deserializePoint(pointString, pageMatrix, coordinateSeparator)

Deserializes a point string into a point object.
Parameters:
Name Type Description
pointString string Point in string format.
pageMatrix Core.Math.Matrix Object representing the transformation matrix for the page.
coordinateSeparator string Separator used for coordinates. Defaults to ',' if not defined.
Returns:
New Point with with an x and y coordinate.
Type
Core.Math.Point

<static> deserializePointArray(pointArrayText, pageMatrix, coordinateSeparator, pointSeparator)

Deserializes a list of points in string format into a point array.
Parameters:
Name Type Description
pointArrayText string Array of points in string (delimited by pointSeparator).
pageMatrix Core.Math.Matrix Object representing the transformation matrix for the page.
coordinateSeparator string Separator used for coordinates. Defaults to ',' if not defined.
pointSeparator string Separator used for points. Defaults to ';' if not defined.
Returns:
Array of Points.
Type
Array.<Core.Math.Point>

<static> deserializeRect(rectString, pageMatrix, separator)

Deserializes a rect string into a rect object.
Parameters:
Name Type Description
rectString string Rect in string format. Default value '0,0,0,0'.
pageMatrix Core.Math.Matrix Object representing the transformation matrix for the page.
separator string Separator used for coordinates. Defaults to ',' if not defined.
Returns:
New Rect with the x and y coordinates.
Type
Core.Math.Rect

<static> parseDefaultAppearance(da)

Parses a default appearance string from an XFDF file and returns an object representing the appearance.
Parameters:
Name Type Description
da string Appearance information in string format.
Returns:
Appearance information in object format.
Type
object
Example
const data = "0 0 0 rg /Helvetica 40 Tf";
const response = Annotations.XFDFUtils.parseDefaultAppearance(data);

Output:
{
   color: "#000000",
   font: {
      name: "Arial",
      rawName: "Helvetica",
      size: "40pt",
   },
   str: "0 0 0 rg /Helvetica 40 Tf",
}

<static> serializeFringeRect(rect, pageMatrix, separator)

Serializes a fringe rect object into a string suitable for an XFDF file.
Parameters:
Name Type Description
rect Core.Math.Rect Rect with the x and y coordinates.
pageMatrix Core.Math.Matrix Object representing the transformation matrix for the page.
separator string Separator used for coordinates. Defaults to ',' if not defined.
Returns:
Rect in string format.
Type
string

<static> serializeMeasure(measureDictionary)

Serializes the measure object into a measure XML element.
Parameters:
Name Type Description
measureDictionary object Object with measure information.
Properties
Name Type Description
area array Area
axis array Axis
distance array Distance
scale string Scale
Returns:
Return element.
Type
Element

<static> serializePoint(point, pageMatrix, coordinateSeparator)

Serializes the point into a string suitable for an XFDF file.
Parameters:
Name Type Description
point Core.Math.Point Point with an x and y coordinate.
pageMatrix Core.Math.Matrix Object representing the transformation matrix for the page.
coordinateSeparator string Separator used for coordinates. Defaults to ',' if not defined.
Returns:
Point in string format.
Type
string

<static> serializePointArray(pointArray, pageMatrix, coordinateSeparator, pointSeparator)

Seriarlize the array of points into a string suitable for an XFDF file.
Parameters:
Name Type Description
pointArray Array.<Core.Math.Point> Array of points.
pageMatrix Core.Math.Matrix Object representing the transformation matrix for the page.
coordinateSeparator string Separator used for coordinates. Defaults to ',' if not defined.
pointSeparator string Separator used for points. Defaults to ';' if not defined.
Returns:
Stringified array of points.
Type
string

<static> serializeRect(rect, pageMatrix, separator)

Serializes a rect object into a string suitable for an XFDF file.
Parameters:
Name Type Description
rect Core.Math.Rect Rect with the x and y coordinates.
pageMatrix Core.Math.Matrix Object representing the transformation matrix for the page.
separator string Separator used for coordinates. Defaults to ',' if not defined.
Returns:
Rect in string format.
Type
string

<static> toXMLDate(date)

Convert a JavaScript date object into a string date that can be used in XFDF
Parameters:
Name Type Description
date Date Date object.
Returns:
Date in string format.
Type
string