org.apache.pdfbox.preflight.utils

Class FilterHelper

java.lang.Object

org.apache.pdfbox.preflight.utils.FilterHelper

public final class FilterHelper
extends Object

Method Summary

Methods

Modifier and Type	Method and Description
static void	isAuthorizedFilter(PreflightContext context, String filter) This method checks if the filter is authorized for the PDF file according to the preflight document specification attribute.
static void	isAuthorizedFilterInPDFA(PreflightContext context, String filter) This method checks if the filter is authorized for a PDF/A file.

Methods inherited from class java.lang.Object

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

Method Detail

isAuthorizedFilter

public static void isAuthorizedFilter(PreflightContext context,
                      String filter)

This method checks if the filter is authorized for the PDF file according to the preflight document specification attribute. For example according to the PDF/A-1 specification, only the LZW filter is forbidden due to Copyright compatibility. Because of the PDF/A is based on the PDF1.4 specification, all filters that aren't declared in the PDF Reference Third Edition are rejected.

Parameters:

context - the preflight context

filter - the filter to check

isAuthorizedFilterInPDFA

public static void isAuthorizedFilterInPDFA(PreflightContext context,
                            String filter)

This method checks if the filter is authorized for a PDF/A file. According to the PDF/A-1 specification, only the LZW filter is forbidden due to Copyright compatibility. Because of the PDF/A is based on the PDF1.4 specification, all filters that aren't declared in the PDF Reference Third Edition are rejected.

Parameters:

context -

filter -