286 lines
9.6 KiB
Java
286 lines
9.6 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package pdfbox;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Collections;
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import java.util.GregorianCalendar;
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import javax.xml.transform.TransformerException;
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import org.apache.jempbox.xmp.XMPMetadata;
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import org.apache.jempbox.xmp.XMPSchemaBasic;
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import org.apache.jempbox.xmp.XMPSchemaDublinCore;
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import org.apache.jempbox.xmp.XMPSchemaPDF;
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import org.apache.jempbox.xmp.pdfa.XMPSchemaPDFAId;
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import org.apache.pdfbox.cos.COSArray;
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import org.apache.pdfbox.cos.COSDictionary;
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import org.apache.pdfbox.pdmodel.PDDocument;
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import org.apache.pdfbox.pdmodel.PDDocumentCatalog;
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import org.apache.pdfbox.pdmodel.PDDocumentInformation;
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import org.apache.pdfbox.pdmodel.PDDocumentNameDictionary;
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import org.apache.pdfbox.pdmodel.PDEmbeddedFilesNameTreeNode;
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import org.apache.pdfbox.pdmodel.PDPage;
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import org.apache.pdfbox.pdmodel.common.PDMetadata;
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import org.apache.pdfbox.pdmodel.common.filespecification.PDComplexFileSpecification;
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import org.apache.pdfbox.pdmodel.common.filespecification.PDEmbeddedFile;
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import org.apache.pdfbox.pdmodel.documentinterchange.logicalstructure.PDMarkInfo;
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import org.apache.pdfbox.pdmodel.edit.PDPageContentStream;
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import org.apache.pdfbox.pdmodel.font.PDFont;
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import org.apache.pdfbox.pdmodel.font.PDTrueTypeFont;
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import org.apache.pdfbox.pdmodel.graphics.color.PDOutputIntent;
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/**
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* This is an example that creates a simple PDF/A document.
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*/
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public class PDFA3FileAttachment
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{
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/**
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* Constructor.
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*/
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public PDFA3FileAttachment()
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{
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super();
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}
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private void attachSampleFile(PDDocument doc) throws IOException
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{
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PDEmbeddedFilesNameTreeNode efTree = new PDEmbeddedFilesNameTreeNode();
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// first create the file specification, which holds the embedded file
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PDComplexFileSpecification fs = new PDComplexFileSpecification();
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fs.setFile("Test.txt");
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COSDictionary dict = fs.getCOSDictionary();
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// Relation "Source" for linking with eg. catalog
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dict.setName("AFRelationship", "Alternative");
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// dict.setName("AFRelationship", "Source");
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dict.setString("UF", "Test.txt");
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// fs.put(new PdfName("AFRelationship"), new PdfName("Source"));
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String payload = "This is a test";
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InputStream is = new ByteArrayInputStream(payload.getBytes());
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PDEmbeddedFile ef = new PDEmbeddedFile(doc, is);
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// set some of the attributes of the embedded file
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ef.setSubtype("text/plain");
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// ef.setFile(fs);
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// ef.getStream().setItem(COSName.UF, fs);
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ef.setModDate(GregorianCalendar.getInstance());
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// PdfFileSpecification fs = PdfFileSpecification.fileEmbedded(writer,
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// src.getAbsolutePath(), src.getName(), null, false, "image/jpeg",
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// fileParameter);
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// fs.put(new PdfName("AFRelationship"), new PdfName("Source"));
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ef.setSize(payload.length());
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ef.setCreationDate(new GregorianCalendar());
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fs.setEmbeddedFile(ef);
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// now add the entry to the embedded file tree and set in the document.
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efTree.setNames(Collections.singletonMap("My first attachment", fs));
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/**
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* Validating file "RE-20131206_22.pdf" for conformance level pdfa-3a The
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* key UF is required but missing. The key AFRelationship is required but
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* missing. File specification 'Test.txt' not associated with an object.
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*/
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// attachments are stored as part of the "names" dictionary in the document
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// catalog
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PDDocumentCatalog catalog = doc.getDocumentCatalog();
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PDDocumentNameDictionary names = new PDDocumentNameDictionary(doc.getDocumentCatalog());
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names.setEmbeddedFiles(efTree);
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catalog.setNames(names);
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// // AF entry (Array) in catalog with the FileSpec
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// PDAcroForm pdAcroForm = new PDAcroForm(doc);
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// COSArray cosArray = new COSArray();
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// cosArray.add(fs);
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// catalog.setItem("AF", cosArray);
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COSDictionary dict2 = catalog.getCOSDictionary();
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COSArray array = new COSArray();
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array.add(fs.getCOSDictionary()); // see below
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dict2.setItem("AF",array);
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}
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/**
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* Create a simple PDF/A-3 document.
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* This example is based on HelloWorld example.
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* As it is a simple case, to conform the PDF/A norm, are added : - the font
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* used in the document - the sRGB color profile - a light xmp block with only
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* PDF identification schema (the only mandatory) - an output intent To
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* conform to A/3 - the mandatory MarkInfo dictionary displays tagged PDF
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* support - and optional producer and - optional creator info is added
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*
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* @param file
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* The file to write the PDF to.
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* @param message
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* The message to write in the file.
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* @throws Exception
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* If something bad occurs
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*/
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public void doIt(String file, String message) throws Exception
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{
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// the document
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PDDocument doc = null;
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try
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{
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doc = new PDDocument();
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// now create the page and add content
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PDPage page = new PDPage();
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doc.addPage(page);
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InputStream fontStream = PDFA3FileAttachment.class.getResourceAsStream("/Ubuntu-R.ttf");
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PDFont font = PDTrueTypeFont.loadTTF(doc, fontStream);
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// create a page with the message where needed
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PDPageContentStream contentStream = new PDPageContentStream(doc, page);
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contentStream.beginText();
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contentStream.setFont(font, 12);
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contentStream.moveTextPositionByAmount(100, 700);
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contentStream.drawString(message);
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contentStream.endText();
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contentStream.saveGraphicsState();
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contentStream.close();
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PDDocumentCatalog cat = makeA3compliant(doc);
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attachSampleFile(doc);
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InputStream colorProfile = PDFA3FileAttachment.class.getResourceAsStream("/sRGB Color Space Profile.icm");
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// create output intent
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PDOutputIntent oi = new PDOutputIntent(doc, colorProfile);
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oi.setInfo("sRGB IEC61966-2.1");
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oi.setOutputCondition("sRGB IEC61966-2.1");
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oi.setOutputConditionIdentifier("sRGB IEC61966-2.1");
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oi.setRegistryName("http://www.color.org");
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cat.addOutputIntent(oi);
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doc.save(file);
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}
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finally
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{
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if (doc != null)
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{
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doc.close();
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}
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}
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}
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/**
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* Makes A PDF/A3a-compliant document from a PDF-A1 compliant document (on the
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* metadata level, this will not e.g. convert graphics to JPG-2000)
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*/
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private PDDocumentCatalog makeA3compliant(PDDocument doc) throws IOException, TransformerException
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{
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PDDocumentCatalog cat = doc.getDocumentCatalog();
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PDMetadata metadata = new PDMetadata(doc);
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cat.setMetadata(metadata);
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// jempbox version
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XMPMetadata xmp = new XMPMetadata();
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XMPSchemaPDFAId pdfaid = new XMPSchemaPDFAId(xmp);
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xmp.addSchema(pdfaid);
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XMPSchemaDublinCore dc = xmp.addDublinCoreSchema();
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String creator = System.getProperty("user.name");
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String producer = "PDFBOX";
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dc.addCreator(creator);
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dc.setAbout("");
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XMPSchemaBasic xsb = xmp.addBasicSchema();
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xsb.setAbout("");
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xsb.setCreatorTool(creator);
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xsb.setCreateDate(GregorianCalendar.getInstance());
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// PDDocumentInformation pdi=doc.getDocumentInformation();
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PDDocumentInformation pdi = new PDDocumentInformation();
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pdi.setProducer(producer);
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pdi.setAuthor(creator);
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doc.setDocumentInformation(pdi);
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XMPSchemaPDF pdf = xmp.addPDFSchema();
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pdf.setProducer(producer);
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pdf.setAbout("");
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// Mandatory: PDF-A3 is tagged PDF which has to be expressed using a
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// MarkInfo dictionary (PDF A/3 Standard sec. 6.7.2.2)
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PDMarkInfo markinfo = new PDMarkInfo();
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markinfo.setMarked(true);
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doc.getDocumentCatalog().setMarkInfo(markinfo);
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pdfaid.setPart(3);
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pdfaid.setConformance("A");/*
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* All files are PDF/A-3, setConformance refers
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* to the level conformance, e.g. PDF/A-3-B where
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* B means only visually preservable, U means
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* visually and unicode preservable and A -like
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* in this case- means full compliance, i.e.
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* visually, unicode and structurally preservable
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*/
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pdfaid.setAbout("");
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metadata.importXMPMetadata(xmp);
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return cat;
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}
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/**
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* This will create a hello world PDF/A document. <br />
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* see usage() for commandline
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*
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* @param args
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* Command line arguments.
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*/
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public static void main(String[] args)
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{
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PDFA3FileAttachment app = new PDFA3FileAttachment();
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try
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{
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if (args.length != 2)
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{
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app.usage();
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}
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else
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{
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app.doIt(args[0], args[1]);
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}
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}
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catch (Exception e)
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{
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e.printStackTrace();
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}
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}
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/**
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* This will print out a message telling how to use this example.
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*/
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private void usage()
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{
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System.err.println("usage: " + this.getClass().getName() + " <output-file> <Message>");
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}
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}
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