com.technia.tvc.core.util.pdf

Class PDFUtils

java.lang.Object

com.technia.tvc.core.util.pdf.PDFUtils

public abstract class PDFUtils
extends java.lang.Object

Since:

6.4.0 (In Report Generator), 2012.3.0 (In Core)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PDFUtils.Permission Represents permissions that can be set on a PDF document.

Method Summary

Modifier and Type	Method and Description
static void	encryptPDF(java.io.InputStream pdf, java.io.OutputStream target, java.lang.String userPassword, java.lang.String ownerPassword) This utility method encrypts a PDF file with the given user and owner passwords and preserves the same permissions from the original file.
static void	encryptPDF(java.io.InputStream pdf, java.io.OutputStream target, java.lang.String userPassword, java.lang.String ownerPassword, PDFUtils.Permission... permissions) This utility method encrypts a PDF file with the given user and owner passwords and applies the specified permissions to the file.
static java.io.InputStream	getStreamIfPDF(java.io.InputStream in) Checks if the inputstream contains PDF data.
static boolean	isPDF(java.io.File file)
static boolean	isPDF(java.io.PushbackInputStream in)

Methods inherited from class java.lang.Object

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

Method Detail

encryptPDF

public static void encryptPDF(java.io.InputStream pdf,
                              java.io.OutputStream target,
                              java.lang.String userPassword,
                              java.lang.String ownerPassword)
                       throws java.io.IOException

This utility method encrypts a PDF file with the given user and owner passwords and preserves the same permissions from the original file.

Parameters:

pdf - The input stream containing PDF data

target - The output stream to write the encrypted PDF file into.

userPassword - The user password

ownerPassword - The owner password

Throws:

java.io.IOException - Upon IO errors.

Since:

2012.2.0

See Also:

encryptPDF(InputStream, OutputStream, String, String, Permission...)

encryptPDF

public static void encryptPDF(java.io.InputStream pdf,
                              java.io.OutputStream target,
                              java.lang.String userPassword,
                              java.lang.String ownerPassword,
                              PDFUtils.Permission... permissions)
                       throws java.io.IOException

This utility method encrypts a PDF file with the given user and owner passwords and applies the specified permissions to the file.

Note that the given target output stream is NOT closed, that has to be done explicitly.

Parameters:

pdf - The input stream containing PDF data

target - The output stream to write the encrypted PDF file into.

userPassword - The user password

ownerPassword - The owner password

permissions - The permissions to be applied to the encrypted file.

Throws:

java.io.IOException - Upon IO errors.

Since:

2012.2.0

isPDF

public static boolean isPDF(java.io.File file)

getStreamIfPDF

public static java.io.InputStream getStreamIfPDF(java.io.InputStream in)
                                          throws java.io.IOException

Checks if the inputstream contains PDF data. If that is the case, a new input stream is returned from which you may read the PDF content (dont use the original input stream as we have already read some data from it).

Note that if the stream doesn't contain PDF data, null is returned from this method.

Parameters:

in - The original input stream

Returns:

A new input stream if the content contained PDF data, null otherwise.

Throws:

java.io.IOException - Upon read errors.

isPDF

public static boolean isPDF(java.io.PushbackInputStream in)
                     throws java.io.IOException

Throws:

java.io.IOException