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You can
use the Output service to transform an interactive PDF document
to a non-interactive PDF. An interactive PDF document lets users
enter or modify data that is in the PDF document fields. The process
of transforming an interactive PDF document to a non-interactive
PDF document is called flattening. When a PDF document is flattened,
a user cannot modify the data in the document fields. One reason
to flatten a PDF document is to ensure that data cannot be modified.
You can flatten the following types of PDF documents:
Attempting to flatten a PDF that is a non-interactive PDF document
causes an exception.
Summary of stepsTo flatten an interactive PDF document
to a non-interactive PDF document, perform the following steps:
Include project files.
Create an Output Client object.
Retrieve an interactive PDF document.
Transform the PDF document.
Save the non-interactive PDF document as a PDF file.
Include project filesInclude the necessary files in your development
project. If you are creating a client application by using Java,
include the necessary JAR files. If you are by using web services,
make sure that you include the proxy files.
The following
JAR files must be added to your project’s class path:
adobe-livecycle-client.jar
adobe-usermanager-client.jar
adobe-output-client.jar
adobe-utilities.jar (required if LiveCycle is deployed
on JBoss)
jbossall-client.jar (required if LiveCycle is deployed
on JBoss)
if LiveCycle is deployed on a
supported J2EE application server that is not JBoss, you will need
to replace the adobe-utilities.jar and jbossall-client.jar files
with JAR files that are specific to the J2EE application server
on which LiveCycle is deployed. For information about the
location of all LiveCycle JAR files, see Including LiveCycle Java library files.
Create an Output Client objectBefore you can programmatically
perform an Output service operation, you must create an Output service
client object. If you are using the Java API, create an OutputClient object.
If you are using the Output web service API, create an OutputServiceService object.
Retrieve an interactive PDF documentRetrieve an interactive PDF
document that you want to transform to a non-interactive PDF document.
Attempting to transform a non-interactive PDF document, causes an
exception.
Transform the PDF documentAfter you retrieve an interactive PDF
document, you can transform it to a non-interactive PDF document.
The Output service returns a non-interactive PDF document.
Save the non-interactive PDF document as a PDF fileYou can
save the non-interactive PDF document as a PDF file.
Flatten a PDF document using the Java APIFlatten an interactive PDF document to a non-interactive
PDF document by using the Output API (Java):
Include project files.
Include client JAR files,
such as adobe-output-client.jar, in your Java project’s class path.
Create an Output Client object.
Retrieve an interactive PDF document.
Create
a java.io.FileInputStream object that represents
the interactive PDF document to transform by using its constructor and
passing a string value that specifies the location of the interactive
PDF file.
Create a com.adobe.idp.Document object by
using its constructor and passing the java.io.FileInputStream object.
Transform the PDF document.
Transform the interactive
PDF document to a non-interactive PDF document by invoking the OutputServiceService object’s transformPDF method
and passing the following values:
The com.adobe.idp.Document object
that contains the interactive PDF document.
A TransformationFormat enum value. To generate
a non-interactive PDF document, specify TransformationFormat.PDF.
A PDFARevisionNumber enum value that specifies
the revision number. Because this parameter is meant for a PDF/A
document, you can specify null.
A string value that represents the amendment number and year, separated
by a colon. Because this parameter is meant for a PDF/A document,
you can specify null.
A PDFAConformance enum value that represents
the PDF/A conformance level. Because this parameter is meant for
a PDF/A document, you can specify null.
The transformPDF method
returns a com.adobe.idp.Document object that contains
a non-interactive PDF document.
Save the non-interactive PDF document as a PDF file.
Create a java.io.File object and ensure
that the file name extension is .pdf.
Invoke the Document object’s copyToFile method
to copy the contents of the Document object to
the file (ensure that you use the Document object
that was returned by the transformPDF method).
Flatten a PDF document using the web service APIFlatten an interactive PDF document to a non-interactive
PDF document by using the Output API (web service):
Include project files.
Create a Microsoft .NET
project that uses MTOM. Ensure that you use the following WSDL definition: http://localhost:8080/soap/services/OutputService?WSDL&lc_version=9.0.1.
注意： Replace localhost with the IP
address of the server hosting LiveCycle.
Create an Output Client object.
Create an OutputServiceClient object
by using its default constructor.
Create an OutputServiceClient.Endpoint.Address object
by using the System.ServiceModel.EndpointAddress constructor.
Pass a string value that specifies the WSDL to the LiveCycle service (for example, http://localhost:8080/soap/services/OutputService?blob=mtom.)
You do not need to use the lc_version attribute.
This attribute is used when you create a service reference. However,
specify ?blob=mtom to use MTOM.
Create a System.ServiceModel.BasicHttpBinding object
by getting the value of the OutputServiceClient.Endpoint.Binding field.
Cast the return value to BasicHttpBinding.
Set the System.ServiceModel.BasicHttpBinding object’s MessageEncoding field
to WSMessageEncoding.Mtom. This value ensures that
MTOM is used.
Enable basic HTTP authentication by performing the following tasks:
Assign the LiveCycle user name to the field OutputServiceClient.ClientCredentials.UserName.UserName.
Assign the corresponding password value to the field OutputServiceClient.ClientCredentials.UserName.Password.
Assign the constant value HttpClientCredentialType.Basic to
the field BasicHttpBindingSecurity.Transport.ClientCredentialType.
Assign the constant value BasicHttpSecurityMode.TransportCredentialOnly to
the field BasicHttpBindingSecurity.Security.Mode.
Retrieve an interactive PDF document.
Create
a BLOB object by using its constructor. The BLOB object
is used to store the interactive PDF document.
Create a System.IO.FileStream object by
invoking its constructor and passing a string value that represents the
file location of the interactive PDF document.
Create a byte array that stores the content of the System.IO.FileStream object.
You can determine the size of the byte array by getting the System.IO.FileStream object’s Length property.
Populate the byte array with stream data by invoking the System.IO.FileStream object’s Read method
and passing the byte array, the starting position, and the stream
length to read.
Populate the BLOB object by assigning its MTOM property
with the contents of the byte array.
Transform the PDF document.
Transform the interactive
PDF document to a non-interactive PDF document by invoking the OutputClient object’s transformPDF method
and passing the following values:
A BLOB object
that contains the interactive PDF document.
A TransformationFormat enumeration value.
To generate a non-interactive PDF document, specify TransformationFormat.PDF.
A PDFARevisionNumber enum value that specifies
the revision number.
A Boolean value that specifies whether the PDFARevisionNumber enum
value is used. Because this parameter is meant for a PDF/A document,
you can specify false.
A string value that represents the amendment number and year, separated
by a colon. Because this parameter is meant for a PDF/A document,
you can specify null.
A PDFAConformance enum value that represents
the PDF/A conformance level.
Boolean value that specifies whether the PDFAConformance enum
value is used. Because this parameter is meant for a PDF/A document,
you can specify false.
The transformPDF method
returns a BLOB object that contains a non-interactive
PDF document.
Save the non-interactive PDF document as a PDF file.
Create a System.IO.FileStream object by
invoking its constructor and passing a string value that represents the
file location of the non-interactive PDF document.
Create a byte array that stores the data content of the BLOB object
that was returned by the transformPDF method. Populate
the byte array by getting the value of the BLOB object’s MTOM data
member.
Create a System.IO.BinaryWriter object by
invoking its constructor and passing the System.IO.FileStream object.
Write the contents of the byte array to a PDF file by invoking
the System.IO.BinaryWriter object’s Write method
and passing the byte array.
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