All Implemented Interfaces:
```
public class DigitalSignatureInfo

                    
```
A digital signature stored inside a PDF document. This can be retrieved by calling getSignatureInfo. As a convenience to check the signing status of a document, you can retrieve the DocumentSignatureInfo by calling getDocumentSignatureInfoAsync.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`public enum`	`DigitalSignatureInfo.ReferenceTransformMethod`	List of possible transformation methods of a Reference. A transformation method defines the scope of the document digest computation and revision comparison.
`public class`	`DigitalSignatureInfo.BuildData`	Build data dictionary of a software that created the digital signature.
`public class`	`DigitalSignatureInfo.Reference`	Signature reference dictionary. This dictionary contains the object digest result, including information about how it was computed.

Field Summary

Fields
Modifier and Type	Field	Description
`public final static String`	`BUILD_DATA_FILTER_KEY`
`public final static String`	`BUILD_DATA_PUB_SEC_KEY`
`public final static String`	`BUILD_DATA_APP_KEY`
`public final static String`	`BUILD_DATA_SIGQ_KEY`
`public final String`	`name`
`public final Array<byte>`	`contents`
`public final List<Long>`	`byteRange`
`public final Calendar`	`creationDate`
`public final String`	`reason`
`public final String`	`location`
`public final String`	`filter`
`public final String`	`subFilter`
`public final List<DigitalSignatureInfo.Reference>`	`references`
`public final Map<String, DigitalSignatureInfo.BuildData>`	`buildProperties`

Constructor Summary

Constructors
Constructor	Description
`DigitalSignatureInfo(InternalPdfDocument document, int documentSourceIndex, NativeFormField signedFormField)`	Intended for internal usage only.
`DigitalSignatureInfo(DigitalSignatureInfo digitalSignatureInfo)`	Intended for internal usage only.

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`String`	`getName()`	Returns name of the signer of this signature.
`Array<byte>`	`getContents()`	Returns actual byte content of this signature in PDF file.
`List<Long>`	`getByteRange()`	Returns range of bytes this signature covers.
`Calendar`	`getCreationDate()`	Returns date of creation of this signature in UTC timezone.
`String`	`getReason()`	Returns reason for signing if the signer attached it.
`String`	`getLocation()`	Returns location for signing if the signer attached it.
`String`	`getFilter()`	Returns name of the filter used for signing.
`String`	`getSubFilter()`	Returns name of the subfilter used for signing.
`List<DigitalSignatureInfo.Reference>`	`getReferences()`
`Map<String, DigitalSignatureInfo.BuildData>`	`getBuildProperties()`	Returns map of build properties.
`boolean`	`isSigned()`	Returns if form field is actually signed.
`DigitalSignatureValidationResult`	`validate()`	Checks the actual validity of the signature and returns .
`PdfDocument`	`getDocument()`	Returns the document with which the signature info is associated.
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DigitalSignatureInfo
```
DigitalSignatureInfo(InternalPdfDocument document, int documentSourceIndex, NativeFormField signedFormField)
```
    Intended for internal usage only.
  - DigitalSignatureInfo
```
DigitalSignatureInfo(DigitalSignatureInfo digitalSignatureInfo)
```
    Intended for internal usage only.
- Method Detail
  - getName
```
@Nullable() String getName()
```
    Returns name of the signer of this signature. May be null no name is stored in the signature.
    
    Returns:
    
    Name of the signer, or null.
  - getContents
```
@Nullable() Array<byte> getContents()
```
    Returns actual byte content of this signature in PDF file.
    
    Returns:
    
    content of the signature or null if there's actually no signature attached to signature field.
  - getByteRange
```
@Nullable() List<Long> getByteRange()
```
    Returns range of bytes this signature covers. Signatures cover two parts of a document: The part before the signature and the part after the signature. This method will return four elements because of that: [offset_of_part_before_signature, length_of_part_before_signature, offset_of_part_after_signature, length_of_part_after_signature].
    To fully verify the integrity of the document, the both parts and contents of this signature should span full size of the document.
    
    Returns:
    
    a list representing the byte range.
  - getCreationDate
```
@Nullable() Calendar getCreationDate()
```
    Returns date of creation of this signature in UTC timezone. May be null if no creation date is stored in the signature.
    
    Returns:
    
    Creation date in UTC timezone, or null.
  - getReason
```
@Nullable() String getReason()
```
    Returns reason for signing if the signer attached it.
    
    Returns:
    
    reason for signing, can be null.
  - getLocation
```
@Nullable() String getLocation()
```
    Returns location for signing if the signer attached it.
    
    Returns:
    
    location for signing, can be null.
  - getFilter
```
@Nullable() String getFilter()
```
    Returns name of the filter used for signing.
    
    Returns:
    
    signing filter, can be null.
  - getSubFilter
```
@Nullable() String getSubFilter()
```
    Returns name of the subfilter used for signing.
    
    Returns:
    
    signing subfilter, can be null.
  - getReferences
```
@NonNull() List<DigitalSignatureInfo.Reference> getReferences()
```
  - getBuildProperties
```
@NonNull() Map<String, DigitalSignatureInfo.BuildData> getBuildProperties()
```
    Returns map of build properties. Keys will be one of BUILD_DATA_APP_KEY, BUILD_DATA_FILTER_KEY, BUILD_DATA_PUB_SEC_KEY, BUILD_DATA_SIGQ_KEY.
    
    Returns:
    
    map of build properties of this signature.
  - isSigned
```
 boolean isSigned()
```
    Returns if form field is actually signed. Note that this DOES NOT check if the signature is actually valid. Signature validity must be checked with validate call.
    
    Returns:
    
    true if this digital signature actually has contents.
  - validate
```
@NonNull()@WorkerThread() DigitalSignatureValidationResult validate()
```
    Checks the actual validity of the signature and returns . This check will use certificates from for validating certificate of this signature and will also check for integrity issues. Note that validation may take a bit of time and shouldn't be run on the main thread.
    
    Returns:
    
    DigitalSignatureValidationResult describing the validity of this signature.
  - getDocument
```
@NonNull() PdfDocument getDocument()
```
    Returns the document with which the signature info is associated.
    
    Returns:
    
    PdfDocument for this signature info.
  - toString
```
 String toString()
```

Class DigitalSignatureInfo

Nested Class Summary

Field Summary

Constructor Summary

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

DigitalSignatureInfo

DigitalSignatureInfo

Method Detail

getName

getContents

getByteRange

getCreationDate

getReason

getLocation

getFilter

getSubFilter

getReferences

getBuildProperties

isSigned

validate

getDocument

toString