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Diffstat (limited to 'pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox2/PDFAsTemplateCreator.java')
| -rw-r--r-- | pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox2/PDFAsTemplateCreator.java | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox2/PDFAsTemplateCreator.java b/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox2/PDFAsTemplateCreator.java new file mode 100644 index 00000000..b8c15119 --- /dev/null +++ b/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox2/PDFAsTemplateCreator.java @@ -0,0 +1,166 @@ +/******************************************************************************* + * <copyright> Copyright 2014 by E-Government Innovation Center EGIZ, Graz, Austria </copyright> + * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a + * joint initiative of the Federal Chancellery Austria and Graz University of + * Technology. + * + * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by + * the European Commission - subsequent versions of the EUPL (the "Licence"); + * You may not use this work except in compliance with the Licence. + * You may obtain a copy of the Licence at: + * http://www.osor.eu/eupl/ + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the Licence is distributed on an "AS IS" basis, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the Licence for the specific language governing permissions and + * limitations under the Licence. + * + * This product combines work with different licenses. See the "NOTICE" text + * file for details on the various modules and licenses. + * The "NOTICE" text file is part of the distribution. Any derivative works + * that you distribute must include a readable copy of the "NOTICE" text file. + ******************************************************************************/ +package at.gv.egiz.pdfas.lib.impl.stamping.pdfbox2; + +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.IOException; +import java.io.InputStream; + +import org.apache.pdfbox.cos.COSName; +import org.apache.pdfbox.pdmodel.PDDocument; +import org.apache.pdfbox.pdmodel.PDPage; +import org.apache.pdfbox.pdmodel.PDResources; +import org.apache.pdfbox.pdmodel.common.PDRectangle; +import org.apache.pdfbox.pdmodel.common.PDStream; +import org.apache.pdfbox.pdmodel.graphics.form.PDFormXObject; +import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDFTemplateCreator; +import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDFTemplateStructure; +import org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm; +import org.apache.pdfbox.pdmodel.interactive.form.PDSignatureField; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import at.gv.egiz.pdfas.common.exceptions.PdfAsException; + +public class PDFAsTemplateCreator extends PDFTemplateCreator { + + PDFAsVisualSignatureBuilder pdfBuilder; + private static final Logger logger = LoggerFactory.getLogger(PDFAsTemplateCreator.class); + + public PDFAsTemplateCreator(PDFAsVisualSignatureBuilder bookBuilder) { + super(bookBuilder); + this.pdfBuilder = bookBuilder; + } + + + public InputStream buildPDF(PDFAsVisualSignatureDesigner properties, PDDocument originalDocument) + throws IOException, PdfAsException { + logger.debug("pdf building has been started"); + PDFTemplateStructure pdfStructure = pdfBuilder.getStructure(); + + // we create array of [Text, ImageB, ImageC, ImageI] + this.pdfBuilder.createProcSetArray(); + + //create page + this.pdfBuilder.createPage(properties); + PDPage page = pdfStructure.getPage(); + + //create template + this.pdfBuilder.createTemplate(page); + PDDocument template = pdfStructure.getTemplate(); + + //create /AcroForm + this.pdfBuilder.createAcroForm(template); + PDAcroForm acroForm = pdfStructure.getAcroForm(); + + // AcroForm contains singature fields + this.pdfBuilder.createSignatureField(acroForm); + PDSignatureField pdSignatureField = pdfStructure.getSignatureField(); + + // create signature + this.pdfBuilder.createSignature(pdSignatureField, page, properties.getSignatureFieldName()); + + // that is /AcroForm/DR entry + this.pdfBuilder.createAcroFormDictionary(acroForm, pdSignatureField); + + // create AffineTransform + this.pdfBuilder.createAffineTransform(properties.getAffineTransformParams()); + //AffineTransform transform = pdfStructure.getAffineTransform(); + + // rectangle, formatter, image. /AcroForm/DR/XObject contains that form + this.pdfBuilder.createSignatureRectangle(pdSignatureField, properties, properties.getRotation() + properties.getPageRotation()); + this.pdfBuilder.createFormaterRectangle(properties.getFormaterRectangleParams()); + PDRectangle formater = pdfStructure.getFormatterRectangle(); + + //this.pdfBuilder.createSignatureImage(template, properties.getImageStream()); + + // create form stream, form and resource. + this.pdfBuilder.createHolderFormStream(template); + PDStream holderFormStream = pdfStructure.getHolderFormStream(); + this.pdfBuilder.createHolderFormResources(); + PDResources holderFormResources = pdfStructure.getHolderFormResources(); + this.pdfBuilder.createHolderForm(holderFormResources, holderFormStream, formater); + + // that is /AP entry the appearance dictionary. + this.pdfBuilder.createAppearanceDictionary(pdfStructure.getHolderForm(), pdSignatureField, + properties.getRotation() + properties.getPageRotation()); + + // inner formstream, form and resource (hlder form containts inner form) + this.pdfBuilder.createInnerFormStreamPdfAs(template, originalDocument); + this.pdfBuilder.createInnerFormResource(); + PDResources innerFormResource = pdfStructure.getInnerFormResources(); + this.pdfBuilder.createInnerForm(innerFormResource, pdfStructure.getInnerFormStream(), formater); + PDFormXObject innerForm = pdfStructure.getInnerForm(); + + // inner form must be in the holder form as we wrote + this.pdfBuilder.insertInnerFormToHolerResources(innerForm, holderFormResources); + + // Image form is in this structure: /AcroForm/DR/FRM0/Resources/XObject/n0 + //this.pdfBuilder.createImageFormStream(template); + //PDStream imageFormStream = pdfStructure.getImageFormStream(); + //this.pdfBuilder.createImageFormResources(); + //PDResources imageFormResources = pdfStructure.getImageFormResources(); + //this.pdfBuilder.createImageForm(imageFormResources, innerFormResource, imageFormStream, formater, transform, + // pdfStructure.getJpedImage()); + + // now inject procSetArray + /*this.pdfBuilder.injectProcSetArray(innerForm, page, innerFormResource, imageFormResources, holderFormResources, + pdfStructure.getProcSet());*/ + this.pdfBuilder.injectProcSetArray(innerForm, page, innerFormResource, null, holderFormResources, + pdfStructure.getProcSet()); + + + /*String imgFormName = pdfStructure.getImageFormName(); + String imgName = pdfStructure.getImageName();*/ + String innerFormName = pdfStructure.getInnerFormName().getName(); + + // now create Streams of AP + /*this.pdfBuilder.injectAppearanceStreams(holderFormStream, imageFormStream, imageFormStream, imgFormName, + imgName, innerFormName, properties);*/ + this.pdfBuilder.injectAppearanceStreams(holderFormStream, null, null, null, + null, innerFormName, properties); + this.pdfBuilder.createVisualSignature(template); + this.pdfBuilder.createWidgetDictionary(pdSignatureField, holderFormResources); + + ByteArrayInputStream in = null; + + //COSDocument doc = pdfStructure.getVisualSignature(); + //doc. + //in = pdfStructure.getTemplateAppearanceStream(); + ByteArrayOutputStream baos = new ByteArrayOutputStream(); + template.save(baos); + baos.close(); + in = new ByteArrayInputStream(baos.toByteArray()); + + + logger.debug("stream returning started, size= " + in.available()); + + // we must close the document + this.pdfBuilder.closeTemplate(template); + + // return result of the stream + return in; + } +} |