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Posted to commits@pdfbox.apache.org by le...@apache.org on 2012/11/03 18:47:59 UTC
svn commit: r1405386 -
/pdfbox/trunk/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/ExtractTTFFonts.java
Author: lehmi
Date: Sat Nov 3 17:47:59 2012
New Revision: 1405386
URL: http://svn.apache.org/viewvc?rev=1405386&view=rev
Log:
PDFBOX-490: added a tool to extract true type fonts to make it easier to work on the TTFParser
Added:
pdfbox/trunk/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/ExtractTTFFonts.java (with props)
Added: pdfbox/trunk/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/ExtractTTFFonts.java
URL: http://svn.apache.org/viewvc/pdfbox/trunk/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/ExtractTTFFonts.java?rev=1405386&view=auto
==============================================================================
--- pdfbox/trunk/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/ExtractTTFFonts.java (added)
+++ pdfbox/trunk/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/ExtractTTFFonts.java Sat Nov 3 17:47:59 2012
@@ -0,0 +1,240 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.pdfbox.examples.pdmodel;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.pdfbox.io.IOUtils;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDPage;
+import org.apache.pdfbox.pdmodel.PDResources;
+import org.apache.pdfbox.pdmodel.common.PDStream;
+import org.apache.pdfbox.pdmodel.font.PDCIDFontType2Font;
+import org.apache.pdfbox.pdmodel.font.PDFont;
+import org.apache.pdfbox.pdmodel.font.PDFontDescriptorDictionary;
+import org.apache.pdfbox.pdmodel.font.PDTrueTypeFont;
+import org.apache.pdfbox.pdmodel.graphics.xobject.PDXObject;
+import org.apache.pdfbox.pdmodel.graphics.xobject.PDXObjectForm;
+
+/**
+ * This will extract all treu type-fonts of a pdf.
+ *
+ */
+public class ExtractTTFFonts
+{
+ private int fontCounter = 1;
+
+ private static final String PASSWORD = "-password";
+ private static final String PREFIX = "-prefix";
+ private static final String ADDKEY = "-addkey";
+
+ private ExtractTTFFonts()
+ {
+ }
+
+ /**
+ * This is the entry point for the application.
+ *
+ * @param args The command-line arguments.
+ *
+ * @throws Exception If there is an error decrypting the document.
+ */
+ public static void main( String[] args ) throws Exception
+ {
+ ExtractTTFFonts extractor = new ExtractTTFFonts();
+ extractor.extractFonts( args );
+ }
+
+ private void extractFonts( String[] args ) throws Exception
+ {
+ if( args.length < 1 || args.length > 4 )
+ {
+ usage();
+ }
+ else
+ {
+ String pdfFile = null;
+ String password = "";
+ String prefix = null;
+ boolean addKey = false;
+ for( int i=0; i<args.length; i++ )
+ {
+ if( args[i].equals( PASSWORD ) )
+ {
+ i++;
+ if( i >= args.length )
+ {
+ usage();
+ }
+ password = args[i];
+ }
+ else if( args[i].equals( PREFIX ) )
+ {
+ i++;
+ if( i >= args.length )
+ {
+ usage();
+ }
+ prefix = args[i];
+ }
+ else if( args[i].equals( ADDKEY ) )
+ {
+ addKey = true;
+ }
+ else
+ {
+ if( pdfFile == null )
+ {
+ pdfFile = args[i];
+ }
+ }
+ }
+ if(pdfFile == null)
+ {
+ usage();
+ }
+ else
+ {
+ if( prefix == null && pdfFile.length() >4 )
+ {
+ prefix = pdfFile.substring( 0, pdfFile.length() -4 );
+ }
+
+ PDDocument document = null;
+
+ try
+ {
+ document = PDDocument.load( pdfFile );
+
+ if( document.isEncrypted() )
+ {
+ document.decrypt(password);
+ }
+ List pages = document.getDocumentCatalog().getAllPages();
+ Iterator iter = pages.iterator();
+ while( iter.hasNext() )
+ {
+ PDPage page = (PDPage)iter.next();
+ PDResources resources = page.getResources();
+ // extract all fonts which are part of the page resources
+ processResources(resources, prefix, addKey);
+ }
+ }
+ finally
+ {
+ if( document != null )
+ {
+ document.close();
+ }
+ }
+ }
+ }
+ }
+
+ private void processResources(PDResources resources, String prefix, boolean addKey) throws IOException
+ {
+ if (resources == null)
+ {
+ return;
+ }
+ Map<String, PDFont> fonts = resources.getFonts();
+ if( fonts != null )
+ {
+ Iterator<String> fontIter = fonts.keySet().iterator();
+ while( fontIter.hasNext() )
+ {
+ String key = fontIter.next();
+ PDFont font = fonts.get( key );
+ // write the font
+ if (font instanceof PDCIDFontType2Font || font instanceof PDTrueTypeFont)
+ {
+ String name = null;
+ if (addKey)
+ {
+ name = getUniqueFileName( prefix + "_" + key, "ttf" );
+ }
+ else
+ {
+ name = getUniqueFileName( prefix, "ttf" );
+ }
+ PDFontDescriptorDictionary fd = (PDFontDescriptorDictionary)font.getFontDescriptor();
+ if (fd != null)
+ {
+ PDStream ff2Stream = fd.getFontFile2();
+ if (ff2Stream != null)
+ {
+ System.out.println( "Writing font:" + name );
+ FileOutputStream fos = new FileOutputStream(new File(name+".ttf"));
+ IOUtils.copy(ff2Stream.createInputStream(), fos);
+ fos.close();
+ }
+ }
+ }
+ }
+ }
+ Map<String, PDXObject> xobjects = resources.getXObjects();
+ if( xobjects != null )
+ {
+ Iterator<String> xobjectIter = xobjects.keySet().iterator();
+ while( xobjectIter.hasNext() )
+ {
+ String key = xobjectIter.next();
+ PDXObject xobject = xobjects.get( key );
+ if (xobject instanceof PDXObjectForm)
+ {
+ PDXObjectForm xObjectForm = (PDXObjectForm)xobject;
+ PDResources formResources = xObjectForm.getResources();
+ processResources(formResources, prefix, addKey);
+ }
+ }
+ }
+
+ }
+
+ private String getUniqueFileName( String prefix, String suffix )
+ {
+ String uniqueName = null;
+ File f = null;
+ while( f == null || f.exists() )
+ {
+ uniqueName = prefix + "-" + fontCounter;
+ f = new File( uniqueName + "." + suffix );
+ fontCounter++;
+ }
+ return uniqueName;
+ }
+
+ /**
+ * This will print the usage requirements and exit.
+ */
+ private static void usage()
+ {
+ System.err.println( "Usage: java org.apache.pdfbox.ExtractTTFFonts [OPTIONS] <PDF file>\n" +
+ " -password <password> Password to decrypt document\n" +
+ " -prefix <font-prefix> Font prefix(default to pdf name)\n" +
+ " -addkey add the internal font key to the file name\n" +
+ " <PDF file> The PDF document to use\n"
+ );
+ System.exit( 1 );
+ }
+
+}
Propchange: pdfbox/trunk/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/ExtractTTFFonts.java
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