de.intarsys.pdf.pd

Class AcroFormSigFlags

java.lang.Object

de.intarsys.pdf.pd.AbstractBitFlags

de.intarsys.pdf.pd.AcroFormSigFlags

public class AcroFormSigFlags
extends AbstractBitFlags

The flags of a signature field.

The flags are bits of an integer.
The following bits are defined (more may exist).

• 0: default
• 1: SignatureExists
• 2: AppendOnly

Field Summary

Fields

Modifier and Type	Field and Description
static int	Bit_AppendOnly
static int	Bit_SignatureExists

Constructor Summary

Constructors

Constructor and Description
AcroFormSigFlags(int value)
AcroFormSigFlags(PDAcroForm form)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isAppendOnly()
boolean	isSignatureExists()
void	setAppendOnly(boolean appendOnly) excerpt from PDF 1.7 spec (p. 674): If set, the document contains signatures that may be invalidated if the file is saved (written) in a way that alters its previous contents, as opposed to an incremental update.
void	setSignatureExists(boolean signatureExists) excerpt from PDF 1.7 spec (p. 674): If set, the document contains at least one signature field.

Methods inherited from class de.intarsys.pdf.pd.AbstractBitFlags

getValue, isSetAnd, isSetOr, set, setValue

Methods inherited from class java.lang.Object

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

Field Detail

Bit_SignatureExists

public static int Bit_SignatureExists

Bit_AppendOnly

public static int Bit_AppendOnly

Constructor Detail

AcroFormSigFlags

public AcroFormSigFlags(int value)

AcroFormSigFlags

public AcroFormSigFlags(PDAcroForm form)

Method Detail

isAppendOnly

public boolean isAppendOnly()

Returns:

appendOnly flag

See Also:

setAppendOnly(boolean)

isSignatureExists

public boolean isSignatureExists()

Returns:

signatureExists flag

See Also:

setSignatureExists(boolean)

setAppendOnly

public void setAppendOnly(boolean appendOnly)

excerpt from PDF 1.7 spec (p. 674):

If set, the document contains signatures that may be invalidated if the file is saved (written) in a way that alters its previous contents, as opposed to an incremental update. Merely updating the file by appending new information to the end of the previous version is safe (see Section G.6, “Updating Example”). Viewer applications can use this flag to present a user requesting a full save with an additional alert box warning that signatures will be invalidated and requiring explicit confirmation before continuing with the operation.

Parameters:

appendOnly -

setSignatureExists

public void setSignatureExists(boolean signatureExists)

excerpt from PDF 1.7 spec (p. 674):

If set, the document contains at least one signature field. This flag allows a viewer application to enable user interface items (such as menu items or pushbuttons) related to signature processing without having to scan the entire document for the presence of signature fields.

Parameters:

signatureExists -