Fix work with Unicode strings for DocumentInfo and Outline titles

IEA-36

Author: Snipx

kernel/src/main/java/com/itextpdf/kernel/pdf/PdfDocumentInfo.java

@@ -68,28 +68,29 @@ public PdfDocumentInfo(PdfDocument pdfDocument) {
         this(new PdfDictionary(), pdfDocument);
     }
 
+
     public PdfDocumentInfo setTitle(String title) {
-        getPdfObject().put(PdfName.Title, new PdfString(title));
+        getPdfObject().put(PdfName.Title, new PdfString(title, PdfEncodings.UNICODE_BIG));
         return this;
     }
 
     public PdfDocumentInfo setAuthor(String author) {
-        getPdfObject().put(PdfName.Author, new PdfString(author));
+        getPdfObject().put(PdfName.Author, new PdfString(author, PdfEncodings.UNICODE_BIG));
         return this;
     }
 
     public PdfDocumentInfo setSubject(String subject) {
-        getPdfObject().put(PdfName.Subject, new PdfString(subject));
+        getPdfObject().put(PdfName.Subject, new PdfString(subject, PdfEncodings.UNICODE_BIG));
         return this;
     }
 
     public PdfDocumentInfo setKeywords(String keywords) {
-        getPdfObject().put(PdfName.Keywords, new PdfString(keywords));
+        getPdfObject().put(PdfName.Keywords, new PdfString(keywords, PdfEncodings.UNICODE_BIG));
         return this;
     }
 
     public PdfDocumentInfo setCreator(String creator) {
-        getPdfObject().put(PdfName.Creator, new PdfString(creator));
+        getPdfObject().put(PdfName.Creator, new PdfString(creator, PdfEncodings.UNICODE_BIG));
         return this;
     }
 
@@ -158,6 +159,6 @@ protected boolean isWrappedObjectMustBeIndirect() {
 
     private String getStringValue(PdfName name) {
         PdfString pdfString = getPdfObject().getAsString(name);
-        return pdfString != null ? pdfString.getValue() : null;
+        return pdfString != null ? pdfString.toUnicodeString() : null;
     }
 }

kernel/src/main/java/com/itextpdf/kernel/pdf/PdfOutline.java

@@ -44,6 +44,7 @@ This file is part of the iText (R) project.
  */
 package com.itextpdf.kernel.pdf;
 
+import com.itextpdf.io.font.PdfEncodings;
 import com.itextpdf.kernel.PdfException;
 import com.itextpdf.kernel.color.Color;
 import com.itextpdf.kernel.pdf.action.PdfAction;
@@ -97,7 +98,7 @@ public String getTitle() {
 
     public void setTitle(String title){
         this.title = title;
-        this.content.put(PdfName.Title, new PdfString(title));
+        this.content.put(PdfName.Title, new PdfString(title, PdfEncodings.UNICODE_BIG));
     }
 
     public void setColor(Color color) {
@@ -160,7 +161,7 @@ public PdfOutline addOutline(String title, int position) {
             position = children.size();
         PdfDictionary dictionary = new PdfDictionary();
         PdfOutline outline = new PdfOutline(title, dictionary, this);
-        dictionary.put(PdfName.Title, new PdfString(title));
+        dictionary.put(PdfName.Title, new PdfString(title, PdfEncodings.UNICODE_BIG));
         dictionary.put(PdfName.Parent, content);
         if (!children.isEmpty()){
             if (position != 0){

kernel/src/test/java/com/itextpdf/kernel/pdf/PdfStringTest.java

@@ -0,0 +1,57 @@
+package com.itextpdf.kernel.pdf;
+
+import com.itextpdf.kernel.utils.CompareTool;
+import com.itextpdf.test.ExtendedITextTest;
+import com.itextpdf.test.annotations.type.IntegrationTest;
+
+import java.io.File;
+import java.io.IOException;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+@Category(IntegrationTest.class)
+public class PdfStringTest extends ExtendedITextTest {
+
+    public static final String sourceFolder = "./src/test/resources/com/itextpdf/kernel/pdf/PdfStringTest/";
+    public static final String destinationFolder = "./target/test/com/itextpdf/kernel/pdf/PdfStringTest/";
+
+    @Before
+    public void before() {
+        new File(destinationFolder).mkdirs();
+    }
+
+    @Test
+    public void testPdfDocumentInfoStringEncoding01() throws IOException, InterruptedException {
+        String fileName = "testPdfDocumentInfoStringEncoding01.pdf";
+
+        PdfDocument pdfDocument = new PdfDocument(new PdfWriter(destinationFolder + fileName, new WriterProperties().setCompressionLevel(CompressionConstants.NO_COMPRESSION)));
+        pdfDocument.addNewPage();
+
+        String author = "Алексей";
+        String title = "Заголовок";
+        String subject = "Тема";
+        String keywords = "Ключевые слова";
+        String creator = "English text";
+
+        pdfDocument.getDocumentInfo().setAuthor(author);
+        pdfDocument.getDocumentInfo().setTitle(title);
+        pdfDocument.getDocumentInfo().setSubject(subject);
+        pdfDocument.getDocumentInfo().setKeywords(keywords);
+        pdfDocument.getDocumentInfo().setCreator(creator);
+
+        pdfDocument.close();
+
+        PdfDocument readDoc = new PdfDocument(new PdfReader(destinationFolder + fileName));
+        Assert.assertEquals(author, readDoc.getDocumentInfo().getAuthor());
+        Assert.assertEquals(title, readDoc.getDocumentInfo().getTitle());
+        Assert.assertEquals(subject, readDoc.getDocumentInfo().getSubject());
+        Assert.assertEquals(keywords, readDoc.getDocumentInfo().getKeywords());
+        Assert.assertEquals(creator, readDoc.getDocumentInfo().getCreator());
+
+        Assert.assertNull(new CompareTool().compareByContent(destinationFolder + fileName, sourceFolder + "cmp_" + fileName, destinationFolder, "diff_"));
+    }
+
+}