java.lang.Object
- com.itextpdf.text.pdf.PdfSignatureAppearance

```
public class PdfSignatureAppearance
extends java.lang.Object
```
Class that takes care of the cryptographic options and appearances that form a signature.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`PdfSignatureAppearance.RenderingMode`	Signature rendering modes
`static interface`	`PdfSignatureAppearance.SignatureEvent`	An interface to retrieve the signature dictionary for modification.

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`CERTIFIED_FORM_FILLING`	Author signature, form filling allowed
`static int`	`CERTIFIED_FORM_FILLING_AND_ANNOTATIONS`	Author signature, form filling and annotations allowed
`static int`	`CERTIFIED_NO_CHANGES_ALLOWED`	Author signature, no changes allowed
`static int`	`NOT_CERTIFIED`	Approval signature
`static java.lang.String`	`questionMark`	An appearance that can be used for layer 1 (if acro6Layers is false).

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`void`	`addDeveloperExtension(PdfDeveloperExtension de)`	Adds the appropriate developer extension.
`void`	`close(PdfDictionary update)`	This is the last method to be called when using external signatures.
`PdfTemplate`	`getAppearance()`	Gets the main appearance layer.
`java.security.cert.Certificate`	`getCertificate()`
`int`	`getCertificationLevel()`	Gets the certified status of this document.
`java.lang.String`	`getContact()`	Gets the signing contact.
`PdfDictionary`	`getCryptoDictionary()`	Gets the user made signature dictionary.
`PdfSigLockDictionary`	`getFieldLockDict()`	Getter for the field lock dictionary.
`java.lang.String`	`getFieldName()`	Gets the field name.
`Image`	`getImage()`	Gets the background image for the layer 2.
`float`	`getImageScale()`	Gets the scaling to be applied to the background image.
`PdfTemplate`	`getLayer(int layer)`	Gets a template layer to create a signature appearance.
`Font`	`getLayer2Font()`	Gets the n2 and n4 layer font.
`java.lang.String`	`getLayer2Text()`	Gets the signature text identifying the signer if set by setLayer2Text().
`java.lang.String`	`getLayer4Text()`	Gets the text identifying the signature status if set by setLayer4Text().
`java.lang.String`	`getLocation()`	Gets the signing location.
`java.lang.String`	`getNewSigName()`	Gets a new signature field name that doesn't clash with any existing name.
`int`	`getPage()`	Gets the page number of the field.
`Rectangle`	`getPageRect()`	Gets the rectangle that represent the position and dimension of the signature in the page.
`java.io.InputStream`	`getRangeStream()`	Gets the document bytes that are hashable when using external signatures.
`java.lang.String`	`getReason()`	Gets the signing reason.
`Rectangle`	`getRect()`	Gets the rectangle representing the signature dimensions.
`PdfSignatureAppearance.RenderingMode`	`getRenderingMode()`	Gets the rendering mode for this signature.
`int`	`getRunDirection()`	Gets the run direction.
`java.lang.String`	`getSignatureCreator()`	Gets the signature creator.
`PdfSignatureAppearance.SignatureEvent`	`getSignatureEvent()`	Getter for property signatureEvent.
`Image`	`getSignatureGraphic()`	Gets the Image object to render.
`java.util.Calendar`	`getSignDate()`	Gets the signature date.
`PdfStamper`	`getStamper()`	Gets the `PdfStamper` associated with this instance.
`java.io.File`	`getTempFile()`	Gets the temporary file.
`PdfTemplate`	`getTopLayer()`	Gets the template that aggregates all appearance layers.
`boolean`	`isAcro6Layers()`	Gets the Acrobat 6.0 layer mode.
`boolean`	`isInvisible()`	Gets the visibility status of the signature.
`boolean`	`isPreClosed()`	Checks if the document is in the process of closing.
`void`	`preClose(java.util.HashMap<PdfName,java.lang.Integer> exclusionSizes)`	This is the first method to be called when using external signatures.
`void`	`setAcro6Layers(boolean acro6Layers)`	Deprecated. Adobe no longer supports Adobe Acrobat / Reader versions older than 9
`void`	`setCertificate(java.security.cert.Certificate signCertificate)`	Sets the certificate used to provide the text in the appearance.
`void`	`setCertificationLevel(int certificationLevel)`	Sets the document type to certified instead of simply signed.
`void`	`setContact(java.lang.String contact)`	Sets the signing contact.
`void`	`setCryptoDictionary(PdfDictionary cryptoDictionary)`	Sets a user made signature dictionary.
`void`	`setFieldLockDict(PdfSigLockDictionary fieldLock)`	Setter for the field lock dictionary.
`void`	`setImage(Image image)`	Sets the background image for the layer 2.
`void`	`setImageScale(float imageScale)`	Sets the scaling to be applied to the background image.
`void`	`setLayer2Font(Font layer2Font)`	Sets the n2 and n4 layer font.
`void`	`setLayer2Text(java.lang.String text)`	Sets the signature text identifying the signer.
`void`	`setLayer4Text(java.lang.String text)`	Sets the text identifying the signature status.
`void`	`setLocation(java.lang.String location)`	Sets the signing location.
`void`	`setLocationCaption(java.lang.String locationCaption)`	Sets the caption for the signing location.
`void`	`setReason(java.lang.String reason)`	Sets the signing reason.
`void`	`setReasonCaption(java.lang.String reasonCaption)`	Sets the caption for signing reason.
`void`	`setRenderingMode(PdfSignatureAppearance.RenderingMode renderingMode)`	Sets the rendering mode for this signature.
`void`	`setReuseAppearance(boolean reuseAppearance)`	Indicates that the existing appearances needs to be reused as layer 0.
`void`	`setRunDirection(int runDirection)`	Sets the run direction in the n2 and n4 layer.
`void`	`setSignatureCreator(java.lang.String signatureCreator)`	Sets the name of the application used to create the signature.
`void`	`setSignatureEvent(PdfSignatureAppearance.SignatureEvent signatureEvent)`	Sets the signature event to allow modification of the signature dictionary.
`void`	`setSignatureGraphic(Image signatureGraphic)`	Sets the Image object to render when Render is set to `RenderingMode.GRAPHIC` or `RenderingMode.GRAPHIC_AND_DESCRIPTION`.
`void`	`setSignDate(java.util.Calendar signDate)`	Sets the signature date.
`void`	`setVisibleSignature(Rectangle pageRect, int page, java.lang.String fieldName)`	Sets the signature to be visible.
`void`	`setVisibleSignature(java.lang.String fieldName)`	Sets the signature to be visible.

Class PdfSignatureAppearance

Nested Class Summary

Field Summary

Method Summary