PreparedDocument (Pdftools SDK)

java.lang.Object
- com.pdftools.internal.NativeBase
- - com.pdftools.internal.NativeObject
  - - com.pdftools.pdf.Document
    - - com.pdftools.sign.PreparedDocument

All Implemented Interfaces:

java.lang.AutoCloseable
```
public class PreparedDocument
extends Document
```
A document that has been prepared for signing

- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  byte[] getHash(HashAlgorithm algorithm)
  Calculate the hash value
  - Methods inherited from class com.pdftools.pdf.Document
    close, getConformance, getIsLinearized, getIsSigned, getMetadata, getPageCount, getPermissions, getSignatureFields, getXfa, open, open
  - Methods inherited from class com.pdftools.internal.NativeObject
    equals, hashCode
  - Methods inherited from class java.lang.Object
    getClass, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getHash
```
public byte[] getHash(HashAlgorithm algorithm)
```
    Calculate the hash value
    Calculate the hash value to create the signature from.
    
    Parameters:
    
    algorithm - The hash algorithm
    
    Returns:
    
    Throws:
    
    java.lang.IllegalArgumentException - if algorithm is null