Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* Copyright 2008 by Kevin Day.
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999-2008 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000-2008 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* https://github.com/LibrePDF/OpenPDF
*/
package com.lowagie.text.pdf.parser;
import com.lowagie.text.pdf.PdfDictionary;
import com.lowagie.text.pdf.PdfName;
import com.lowagie.text.pdf.PdfObject;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.RandomAccessFileOrArray;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
/**
* Tool that parses the content of a PDF document.
*
* @since 2.1.4
*/
@SuppressWarnings("WeakerAccess")
public class PdfContentReaderTool {
/**
* Shows the detail of a dictionary. This is similar to the PdfLister
* functionality.
*
* @param dic
* the dictionary of which you want the detail
* @return a String representation of the dictionary
*/
public static String getDictionaryDetail(PdfDictionary dic) {
return getDictionaryDetail(dic, 0);
}
/**
* Shows the detail of a dictionary.
*
* @param dic
* the dictionary of which you want the detail
* @param depth
* the depth of the current dictionary (for nested dictionaries)
* @return a String representation of the dictionary
*/
public static String getDictionaryDetail(PdfDictionary dic, int depth) {
StringBuilder builder = new StringBuilder();
builder.append('(');
List subDictionaries = new ArrayList<>();
for (PdfName key : dic.getKeys()) {
PdfObject val = dic.getDirectObject(key);
if (val.isDictionary()) {
subDictionaries.add(key);
}
builder.append(key);
builder.append('=');
builder.append(val);
builder.append(", ");
}
builder.setLength(builder.length() - 2);
builder.append(')');
PdfName pdfSubDictionaryName;
for (Object subDictionary : subDictionaries) {
pdfSubDictionaryName = (PdfName) subDictionary;
builder.append('\n');
for (int i = 0; i < depth + 1; i++) {
builder.append('\t');
}
builder.append("Subdictionary ");
builder.append(pdfSubDictionaryName);
builder.append(" = ");
builder.append(getDictionaryDetail(
dic.getAsDict(pdfSubDictionaryName), depth + 1));
}
return builder.toString();
}
/**
* Writes information about a specific page from PdfReader to the specified
* output stream.
*
* @since 2.1.5
* @param reader
* the PdfReader to read the page content from
* @param pageNum
* the page number to read
* @param out
* the output stream to send the content to
* @throws IOException thrown when an I/O operation goes wrong
*/
public static void listContentStreamForPage(PdfReader reader, int pageNum, PrintWriter out)
throws IOException {
out.println("==============Page " + pageNum + "====================");
out.println("- - - - - Dictionary - - - - - -");
PdfDictionary pageDictionary = reader.getPageN(pageNum);
out.println(getDictionaryDetail(pageDictionary));
out.println("- - - - - Content Stream - - - - - -");
RandomAccessFileOrArray f = reader.getSafeFile();
byte[] contentBytes = reader.getPageContent(pageNum, f);
f.close();
InputStream is = new ByteArrayInputStream(contentBytes);
int ch;
while ((ch = is.read()) != -1) {
out.print((char) ch);
}
out.println("\n- - - - - Text Extraction - - - - - -");
PdfTextExtractor extractor = new PdfTextExtractor(reader,
new MarkedUpTextAssembler(reader));
String extractedText = extractor.getTextFromPage(pageNum);
if (extractedText.length() != 0) {
out.println(extractedText);
} else {
out.println("No text found on page " + pageNum);
}
out.println();
}
/**
* Writes information about each page in a PDF file to the specified output
* stream.
*
* @since 2.1.5
* @param pdfFile
* a File instance referring to a PDF file
* @param out
* the output stream to send the content to
* @throws IOException thrown when an I/O operation goes wrong
*/
public static void listContentStream(File pdfFile, PrintWriter out)
throws IOException {
PdfReader reader = new PdfReader(pdfFile.getCanonicalPath());
int maxPageNum = reader.getNumberOfPages();
for (int pageNum = 1; pageNum <= maxPageNum; pageNum++) {
listContentStreamForPage(reader, pageNum, out);
}
}
/**
* Writes information about the specified page in a PDF file to the
* specified output stream.
*
* @since 2.1.5
* @param pdfFile
* a File instance referring to a PDF file
* @param pageNum
* the page number to read
* @param out
* the output stream to send the content to
* @throws IOException thrown when an I/O operation goes wrong
*/
public static void listContentStream(File pdfFile, int pageNum,
PrintWriter out) throws IOException {
PdfReader reader = new PdfReader(pdfFile.getCanonicalPath());
listContentStreamForPage(reader, pageNum, out);
}
/**
* Writes information about each page in a PDF file to the specified file,
* or System.out.
*
* @param args the arguments passed to the command line
*/
public static void main(String[] args) {
try {
if (args.length < 1 || args.length > 3) {
System.out.println("Usage: PdfContentReaderTool [
