	Language
	English
	English
	English
	French
	German
	German
	German
	Italian
	Korean
	Spanish
	Catalan
	Dutch
	Portuguese
	Portuguese
	Arabic
	Arabic
	Bulgarian
	Bangla
	Bosnian
	Czech
	Greek
	Estonian
	Persian
	Finnish
	Danish
	Hindi
	Indonesian
	Icelandic
	Croatian
	Japanese
	Hungarian
	Hebrew
	Georgian
	Central Kurdish
	Khmer
	Kyrgyz
	Kazakh
	Lithuanian
	Latvian
	Malay
	Norwegian
	Polish
	Romanian
	Russian
	Slovak
	Slovenian
	Serbian
	Serbian
	Swedish
	Thai
	Turkish
	Ukrainian
	Uzbek
	Vietnamese
	Chinese
	Chinese

Signature

Signature is used to draw a signature as an input. Various options such as background color, foreground color, thickness are available for customization. Signature also supports touch enabled devices as well as typeable text.

Signature Tag Documentation

Signature is used to draw a signature as an input.

Name	Type	Required	Default	Description
id	String	false	generated	Unique identifier of the component in a namingContainer.
rendered	boolean	false	true	Boolean value to specify the rendering of the component, when set to false component will not be rendered.
binding	UIComponent	false	generated	An EL expression referring to a server side UIComponent instance in a backing bean.
widgetVar	String	false	generated ('widget_' + componentClientId)	Name of the client side widget.
accesskey	String	false		Access key to transfer focus to the input element.
alt	String	false		Alternate textual description of the input field.
ariaDescribedBy	String	false		Identifies the element(s) that describe the object, enhancing accessibility.
ariaLabel	String	false		ARIA label for accessibility.
ariaLabelledBy	String	false
autocomplete	String	false		Controls browser autocomplete behavior. Possible values are 'on', 'off', and 'new-password'.
backgroundColor	String	false		Background color of the signature canvas.
base64Value	String	false		Base64 encoded value of the signature.
color	String	false		Color of the signature stroke.
converter	Converter	false		EL expression resolves to a converter instance or literal converter ID defining a component converter.
converterMessage	String	false		Custom message to display when conversion fails.
dir	String	false	ltr	Direction indication for text that does not inherit directionality.
disabled	boolean	false	false	Specifies that an element should be disabled.
fontFamily	String	false		Font family for text-based signatures.
fontSize	int	false	40	Font size for text-based signatures.
guideline	boolean	false	false	When enabled, displays guideline for signature.
guidelineColor	String	false		Color of the guideline.
guidelineIndent	int	false	10	Indent of the guideline.
guidelineOffset	int	false	25	Offset of the guideline from the top.
immediate	boolean	false	false	When set true, process validations logic is executed at apply request values phase for this component.
inputmode	String	false		Specifies the type of data expected in the input, aiding virtual keyboards.
label	String	false		A localized user presentable name.
lang	String	false		Specifies the language of the element's content.
localValueSet	boolean	false	false	Indicates whether the local value of the component has been set.
maxlength	int	false	Integer.MIN_VALUE	Defines the maximum number of characters allowed in the input.
onblur	String	false		Fires when an element loses focus.
onchange	String	false		Fires when the value of an element has been changed.
onclick	String	false		Fires when a mouse click on the element.
oncontextmenu	String	false		Script to execute when the context menu is triggered.
oncopy	String	false		Script to execute when content is copied from the element.
oncut	String	false		Script to execute when content is cut from the element.
ondblclick	String	false		Fires when a mouse double-click on the element.
ondrag	String	false		Script to execute when an element is dragged.
ondragend	String	false		Script to execute at the end of a drag operation.
ondragenter	String	false		Script to execute when a dragged element enters a valid drop target.
ondragleave	String	false		Script to execute when a dragged element leaves a valid drop target.
ondragover	String	false		Script to execute when a dragged element is over a valid drop target.
ondragstart	String	false		Script to execute at the start of a drag operation.
ondrop	String	false		Script to execute when a dragged element is dropped.
onfocus	String	false		Fires when an element gets focus.
oninput	String	false		Script to execute when the element receives user input.
oninvalid	String	false		Script to execute when the element's value is invalid.
onkeydown	String	false		Fires when a user is pressing a key.
onkeypress	String	false		Fires when a user presses a key.
onkeyup	String	false		Fires when a user releases a key.
onmousedown	String	false		Fires when a mouse button is pressed down on an element.
onmousemove	String	false		Fires when the mouse pointer is moving while it is over an element.
onmouseout	String	false		Fires when the mouse pointer moves out of an element.
onmouseover	String	false		Fires when the mouse pointer moves onto an element.
onmouseup	String	false		Fires when a mouse button is released over an element.
onpaste	String	false		Script to execute when content is pasted into the element.
onreset	String	false		Script to execute when the form is reset.
onscroll	String	false		Script to execute when the element is scrolled.
onsearch	String	false		Script to execute when a search is performed.
onselect	String	false		Script to execute when text is selected.
onwheel	String	false		Script to execute when the mouse wheel is used.
placeholder	String	false		Specifies a short hint describing the expected value of the input.
readonly	boolean	false	false	Specifies that an input field is read-only.
required	boolean	false	false	Marks component as required.
requiredMessage	String	false		Custom message to display when the required validation fails.
role	String	false		Defines the role of the element for accessibility purposes.
size	int	false	Integer.MIN_VALUE	Number of characters used to determine the width of the input element.
style	String	false		Specifies an inline CSS style for an element.
styleClass	String	false		Specifies one or more CSS class names for an element.
submittedValue	Object	false
tabindex	String	false		Specifies the tab order of an element.
textValue	String	false		Text value for text-based signatures.
thickness	int	false	2	Thickness of the signature stroke.
title	String	false		Specifies extra information about an element (displayed as a tooltip).
type	String	false	text	Input field type.
valid	boolean	false	true	Indicates whether the input's value is valid.
validator	Validator	false		A method expression referring to a method validating the input.
validatorMessage	String	false		Custom message to display when validation fails.
value	Object	false		Value of the component.
valueChangeListener	ValueChangeListener	false		A method binding expression referring to a method for handling a valuchangeevent.

Name	Description
No records found.

Name	Type	Default	Description
blur	AjaxBehaviorEvent	false	Fires when the element loses focus.
change	AjaxBehaviorEvent	false	Fires when the element's value changes.
click	AjaxBehaviorEvent	false	Fires when the element is clicked.
contextmenu	AjaxBehaviorEvent	false	Fires when the context menu is triggered on the element.
copy	AjaxBehaviorEvent	false	Fires when a copy operation occurs on the element.
cut	AjaxBehaviorEvent	false	Fires when a cut operation occurs on the element.
dblclick	AjaxBehaviorEvent	false	Fires when the element is double-clicked.
drag	AjaxBehaviorEvent	false	Fires when an element or text selection is being dragged.
dragend	AjaxBehaviorEvent	false	Fires when a drag operation is being ended.
dragenter	AjaxBehaviorEvent	false	Fires when a dragged element enters a valid drop target.
dragleave	AjaxBehaviorEvent	false	Fires when a dragged element leaves a valid drop target.
dragover	AjaxBehaviorEvent	false	Fires when a dragged element is over a valid drop target.
dragstart	AjaxBehaviorEvent	false	Fires when the user starts dragging an element.
drop	AjaxBehaviorEvent	false	Fires when an element is dropped on a valid drop target.
focus	AjaxBehaviorEvent	false	Fires when the element gains focus.
input	AjaxBehaviorEvent	false	Fires when the value of an input element is changed.
invalid	AjaxBehaviorEvent	false	Fires when the element is invalid.
keydown	AjaxBehaviorEvent	false	Fires when a key is pressed down on the element.
keypress	AjaxBehaviorEvent	false	Fires when a key is pressed and released on the element.
keyup	AjaxBehaviorEvent	false	Fires when a key is released on the element.
mousedown	AjaxBehaviorEvent	false	Fires when a mouse button is pressed down on the element.
mousemove	AjaxBehaviorEvent	false	Fires when the mouse is moved over the element.
mouseout	AjaxBehaviorEvent	false	Fires when the mouse leaves the element.
mouseover	AjaxBehaviorEvent	false	Fires when the mouse enters the element.
mouseup	AjaxBehaviorEvent	false	Fires when a mouse button is released over the element.
paste	AjaxBehaviorEvent	false	Fires when a paste operation occurs on the element.
reset	AjaxBehaviorEvent	false	Fires when the form is reset.
scroll	AjaxBehaviorEvent	false	Fires when the element is scrolled.
search	AjaxBehaviorEvent	false	Fires when a search is initiated on the element.
select	AjaxBehaviorEvent	false	Fires when some text is selected in the element.
valueChange	AjaxBehaviorEvent	true	Fires when the element's value is changed.
wheel	AjaxBehaviorEvent	false	Fires when the wheel event is triggered on the element.

Name	Library	Target
components.css	primefaces
signature/signature.css	primefaces
jquery/jquery.js	primefaces
jquery/jquery-plugins.js	primefaces
core.js	primefaces
components.js	primefaces
signature/signature.js	primefaces

Family org.primefaces.component

Type org.primefaces.component.Signature

Class org.primefaces.component.signature.Signature

Renderer Type org.primefaces.component.SignatureRenderer

Renderer Class org.primefaces.component.signature.SignatureRenderer

RESOURCES

Tag DocumentationNew DocumentationNew Documentation JSDoc


<div class="card">
    <h:form>
        <p:growl>
            <p:autoUpdate />
        </p:growl>

        <p:outputPanel id="input">
            <p:outputLabel for="@next" value="Signature:" style="font-size:1.5rem" styleClass="block mb-2" />
            <p:signature id="signature" widgetVar="sig" style="width:400px;height:200px" value="#{signatureView.value}" required="true" guideline="true"
                 textValue="#{signatureView.text}" base64Value="#{signatureView.base64}" />
        </p:outputPanel>

        <div style="margin:20px 0">
            <p:commandButton value="Submit" icon="pi pi-check" update="output signature" />
            <p:commandButton value="Clear" icon="pi pi-times" type="button" onclick="PF('sig').clear()" styleClass="ui-button-flat ml-2" />
        </div>

        <p:outputPanel id="output">
            <h:outputText rendered="#{not empty signatureView.value}" style="font-size:1.5rem" styleClass="block mb-2" value="Your Signature" />
            <p:signature id="signed" widgetVar="signed" style="width:400px;height:200px;" value="#{signatureView.value}"
                textValue="#{signatureView.text}" readonly="true" rendered="#{not empty signatureView.value}" backgroundColor="#eaeaea"
                color="#1769aa" />
        </p:outputPanel>
    </h:form>
</div>


package org.primefaces.showcase.view.input;

import jakarta.enterprise.context.RequestScoped;
import jakarta.inject.Named;

@Named
@RequestScoped
public class SignatureView {

    private String value;
    private String text;
    private String base64;

    public String getValue() {
        return value;
    }

    public void setValue(String value) {
        this.value = value;
    }

    public String getBase64() {
        return base64;
    }

    public void setBase64(String base64) {
        this.base64 = base64;
    }

    public String getText() {
        return text;
    }

    public void setText(String text) {
        this.text = text;
    }
}

Signature

Signature Tag Documentation

Usage

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