Package org.jpedal.tools

Class PdfSigner

java.lang.Object

org.jpedal.tools.PdfSigner

public final class PdfSigner
extends Object

Digitally signs PDF documents

Example usage:

 PdfSigner.signPdf(
      "/input.pdf",
      "/output.pdf",
      "1234",
      "/keystore.p12",
      "John Doe",
      "London",
      "Accepting Agreement"
 );
 

Note: Your keystore must meet the following conditions to be suitable for signing:

• The keystore must be a PKCS#12 file containing your private key and X.509 certificate
• The certificate must be valid
• The certificate signature algorithm must be SHA256 RSA
• The private key usage must be digitalSignature

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	PdfSigner.ACCESS_PERMISSION	Document Access Permissions (As specified in PDF 12.8.2.2.2 - Table 257)

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_SIGNATURE_SIZE	The default signature size if none is specified.

Method Summary

Modifier and Type	Method	Description
static void	signPdf(String input, String output, String password, String keystore, String name, String location, String reason)	Signs the PDF file and writes the result to disk
static void	signPdf(String input, String output, String password, String keystore, String name, String location, String reason, int signatureSize)	Signs the PDF file and writes the result to disk
static void	signPdf(String input, String output, String password, String keystore, String name, String location, String reason, PdfSigner.ACCESS_PERMISSION permissions)	Signs the PDF file and writes the result to disk
static void	signPdf(String input, String output, String password, String keystore, String name, String location, String reason, PdfSigner.ACCESS_PERMISSION permissions, int signatureSize)	Signs the PDF file and writes the result to disk

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

DEFAULT_SIGNATURE_SIZE

public static final int DEFAULT_SIGNATURE_SIZE

The default signature size if none is specified.

See Also:

• Constant Field Values

Method Details

signPdf

public static void signPdf(String input,
 String output,
 String password,
 String keystore,
 String name,
 String location,
 String reason)
                    throws IOException

Signs the PDF file and writes the result to disk

Parameters:

input - The file location of the document to be signed

output - The file location of the document which is to be produced

password - The password for your key store

keystore - The file location of your key store

name - The name of the person/business signing the document

location - The real-world location of where the document is said to be signed

reason - The reason for signing the document

Throws:

IOException - IOException

signPdf

public static void signPdf(String input,
 String output,
 String password,
 String keystore,
 String name,
 String location,
 String reason,
 PdfSigner.ACCESS_PERMISSION permissions)
                    throws IOException

Signs the PDF file and writes the result to disk

Parameters:

input - The file location of the document to be signed

output - The file location of the document which is to be produced

password - The password for your key store

keystore - The file location of your key store

name - The name of the person/business signing the document

location - The real-world location of where the document is said to be signed

reason - The reason for signing the document

permissions - The Document Access Permissions level (see PdfSigner.ACCESS_PERMISSION

Throws:

IOException - IOException

signPdf

public static void signPdf(String input,
 String output,
 String password,
 String keystore,
 String name,
 String location,
 String reason,
 int signatureSize)
                    throws IOException

Signs the PDF file and writes the result to disk

Parameters:

input - The file location of the document to be signed

output - The file location of the document which is to be produced

password - The password for your key store

keystore - The file location of your key store

name - The name of the person/business signing the document

location - The real-world location of where the document is said to be signed

reason - The reason for signing the document

signatureSize - The size of the /Contents value in the signature dictionary

Throws:

IOException - IOException

signPdf

public static void signPdf(String input,
 String output,
 String password,
 String keystore,
 String name,
 String location,
 String reason,
 PdfSigner.ACCESS_PERMISSION permissions,
 int signatureSize)
                    throws IOException

Signs the PDF file and writes the result to disk

Parameters:

input - The file location of the document to be signed

output - The file location of the document which is to be produced

password - The password for your key store

keystore - The file location of your key store

name - The name of the person/business signing the document

location - The real-world location of where the document is said to be signed

reason - The reason for signing the document

permissions - The Document Access Permissions level (see PdfSigner.ACCESS_PERMISSION

signatureSize - The size of the /Contents value in the signature dictionary

Throws:

IOException - IOException