com.datalogics.PDFL

Enum CompressQuality

java.lang.Object

java.lang.Enum<CompressQuality>

com.datalogics.PDFL.CompressQuality

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<CompressQuality>

public enum CompressQuality
extends java.lang.Enum<CompressQuality>

Establish the compression quality to be used in compression schemas that allow variable quality. (JPEG, JPEG2000, JBIG2). Unset should be selected for compression schemes that are inherently lossless (Flate, CCITTG3, or CCITTG4). JBIG2 may select any value. JPEG and JPEG2000 can select any value between Minimum and Maximum, but should not select Unset or Lossless.

Enum Constant Summary

Enum Constants

Enum Constant and Description
HIGH For JPEG, this will equate to a QFactor of 0.25.
LOSSLESS This may ONLY be selected for Flate, CCITTG3, CCITTG4, and JBIG2
LOW For JPEG, this will equate to a QFactor of 0.75.
MAXIMUM For JPEG, this will equate to a QFactor of 0.15.
MEDIUM For JPEG, this will equate to a QFactor of 0.5.
MINIMUM For JPEG, this will equate to a QFactor of 1.3.
UNSET No Quality is selected.

Method Summary

Modifier and Type	Method and Description
static CompressQuality	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static CompressQuality[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

UNSET

public static final CompressQuality UNSET

No Quality is selected. This is appropriate for Flate, JBIG2, CCITTG3, or CCITTG4 compression.

MINIMUM

public static final CompressQuality MINIMUM

For JPEG, this will equate to a QFactor of 1.3. For JPEG2000, this will equate to Quality of 0. For JBIG2, this will equate to a JB2Quality of 4.

LOW

public static final CompressQuality LOW

For JPEG, this will equate to a QFactor of 0.75. For JPEG2000, this will equate to Quality of 25. For JBIG2, this will equate to a JB2Quality of 5.

MEDIUM

public static final CompressQuality MEDIUM

For JPEG, this will equate to a QFactor of 0.5. For JPEG2000, this will equate to Quality of 50. For JBIG2, this will equate to a JB2Quality of 7.

HIGH

public static final CompressQuality HIGH

For JPEG, this will equate to a QFactor of 0.25. For JPEG2000, this will equate to Quality of 75. For JBIG2, this will equate to a JB2Quality of 9.

MAXIMUM

public static final CompressQuality MAXIMUM

For JPEG, this will equate to a QFactor of 0.15. For JPEG2000, this will equate to Quality of 100. For JBIG2, this will equate to a JB2Quality of 10.

LOSSLESS

public static final CompressQuality LOSSLESS

This may ONLY be selected for Flate, CCITTG3, CCITTG4, and JBIG2

Method Detail

values

public static CompressQuality[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (CompressQuality c : CompressQuality.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static CompressQuality valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null