I am using Apache POI XWPF components and java, to extract data from a .xml file into a word document. So far so good, but I am struggling to create a table of contents.
I have to create a table of contents at the start of the method and then I update it at the end to get all the new headers. Currently I use doc.createTOC(), where doc is a variable created from XWPFDocument, to create the table at the start and then I use doc.enforceUpdateFields() to update everything at the end of the document. But when I open the document after I ran the program, the table of contents is empty, but the navigation panel does include some of the headers I specified.
A comment recommended that I include some code. So i started off by create the document from a template:
XWPFDocument doc = new XWPFDocument(new FileInputStream("D://Template.docx"));
I then create a table of contents:
doc.createTOC();
Then throughout the method I add headers to the document:
XWPFParagraph documentControlHeading = doc.createParagraph();
documentControlHeading.setPageBreak(true);
documentControlHeading.setAlignment(ParagraphAlignment.LEFT);
documentControlHeading.setStyle("Tier1Header");
After all the headers are added, I want to update the document so that all the new headers will appear in the table of contents. I do this buy using the following command:
doc.enforceUpdateFields();
Hmmm... I am looking at the createTOC() method code, and it appears that it looks for styles that look like Heading #. So Tier1Header would not be found. Try creating your text first, and use styles like Heading 1 for your headings. Then add the TOC using createTOC(). It should find all the headings when the TOC is created. I do not know if enforceUpdateFields() affects the TOC.
//Your docx template should contain the following or something similar text //which will be searched for and replaced with a WORD TOC.
//${TOC}
public static void main(String[] args) throws IOException, OpenXML4JException {
XWPFDocument docTemplate = null;
try {
File file = new File(PATH_TO_FILE); //"C:\\Reports\\Template.docx";
FileInputStream fis = new FileInputStream(file);
docTemplate = new XWPFDocument(fis);
generateTOC(docTemplate);
saveDocument(docTemplate);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (docTemplate != null) {
docTemplate.close();
}
}
}
private static void saveDocument(XWPFDocument docTemplate) throws FileNotFoundException, IOException {
FileOutputStream outputFile = null;
try {
outputFile = new FileOutputStream(OUTFILENAME);
docTemplate.write(outputFile);
} finally {
if (outputFile != null) {
outputFile.close();
}
}
}
public static void generateTOC(XWPFDocument document) throws InvalidFormatException, FileNotFoundException, IOException {
String findText = "${TOC}";
String replaceText = "";
for (XWPFParagraph p : document.getParagraphs()) {
for (XWPFRun r : p.getRuns()) {
int pos = r.getTextPosition();
String text = r.getText(pos);
if (text != null && text.contains(findText)) {
text = text.replace(findText, replaceText);
r.setText(text, 0);
addField(p, "TOC \\o \"1-3\" \\h \\z \\u");
break;
}
}
}
}
private static void addField(XWPFParagraph paragraph, String fieldName) {
CTSimpleField ctSimpleField = paragraph.getCTP().addNewFldSimple();
// ctSimpleField.setInstr(fieldName + " \\* MERGEFORMAT ");
ctSimpleField.setInstr(fieldName);
ctSimpleField.addNewR().addNewT().setStringValue("<<fieldName>>");
}
This is the code of createTOC(), obtained by inspecting XWPFDocument.class:
public void createTOC() {
CTSdtBlock block = getDocument().getBody().addNewSdt();
TOC toc = new TOC(block);
for (XWPFParagraph par : this.paragraphs) {
String parStyle = par.getStyle();
if ((parStyle != null) && (parStyle.startsWith("Heading"))) try {
int level = Integer.valueOf(parStyle.substring("Heading".length())).intValue();
toc.addRow(level, par.getText(), 1, "112723803");
} catch (NumberFormatException e) {
e.printStackTrace();
}
}
}
As you can see, it adds to the TOC all paragraphs having styles named "HeadingX", with X being a number. But, unfortunately, that's not sufficent. The method, in fact, is bugged/uncomplete in its implementation.
The page number passed to addRow() is always 1, it's not even calculated.
So, at the end, you will have a TOC with all your paragraphs and the trailing dots giving the proper indentation, but the pages will be always equal to "1".
EDIT
...but, there's a solution here.
Related
I have a placeholder image in my docx file and I want to replace it with new image. The problem is - the placeholder image has an attribute "in front of text", but the new image has not. As a result the alignment breaks. Here is my code snippet and the docx with placeholder and the resulting docx.
.......
replaceImage(doc, "Рисунок 1", qr, 50, 50);
ByteArrayOutputStream out = new ByteArrayOutputStream();
doc.write(out);
out.close();
return out.toByteArray();
}
}
public XWPFDocument replaceImage(XWPFDocument document, String imageOldName, byte[] newImage, int newImageWidth, int newImageHeight) throws Exception {
try {
int imageParagraphPos = -1;
XWPFParagraph imageParagraph = null;
List<IBodyElement> documentElements = document.getBodyElements();
for (IBodyElement documentElement : documentElements) {
imageParagraphPos++;
if (documentElement instanceof XWPFParagraph) {
imageParagraph = (XWPFParagraph) documentElement;
if (imageParagraph.getCTP() != null && imageParagraph.getCTP().toString().trim().contains(imageOldName)) {
break;
}
}
}
if (imageParagraph == null) {
throw new Exception("Unable to replace image data due to the exception:\n"
+ "'" + imageOldName + "' not found in in document.");
}
ParagraphAlignment oldImageAlignment = imageParagraph.getAlignment();
// remove old image
boolean isDeleted = document.removeBodyElement(imageParagraphPos);
// now add new image
XWPFParagraph newImageParagraph = document.createParagraph();
XWPFRun newImageRun = newImageParagraph.createRun();
newImageParagraph.setAlignment(oldImageAlignment);
try (InputStream is = new ByteArrayInputStream(newImage)) {
newImageRun.addPicture(is, XWPFDocument.PICTURE_TYPE_JPEG, "qr",
Units.toEMU(newImageWidth), Units.toEMU(newImageHeight));
}
// set new image at the old image position
document.setParagraph(newImageParagraph, imageParagraphPos);
// NOW REMOVE REDUNDANT IMAGE FORM THE END OF DOCUMENT
document.removeBodyElement(document.getBodyElements().size() - 1);
return document;
} catch (Exception e) {
throw new Exception("Unable to replace image '" + imageOldName + "' due to the exception:\n" + e);
}
}
The image with placeholder:
enter image description here
The resulting image:
enter image description here
To replace picture templates in Microsoft Word there is no need to delete them.
The storage is as so:
The embedded media is stored as binary file. This is the picture data (XWPFPictureData). In the document a picture element (XWPFPicture) links to that picture data.
The XWPFPicture has settings for position, size and text flow. These dont need to be changed.
The changing is needed in XWPFPictureData. There one can replace the old binary content with the new.
So the need is to find the XWPFPicture in the document. There is a non visual picture name stored while inserting the picture in the document. So if one knows that name, then this could be a criteriea to find the picture.
If found one can get the XWPFPictureData from found XWPFPicture. There is method XWPFPicture.getPictureDatato do so. Then one can replace the old binary content of XWPFPictureData with the new. XWPFPictureData is a package part. So it has PackagePart.getOutputStream to get an output stream to write to.
Following complete example shows that all.
The source.docx needs to have an embedded picture named "QRTemplate.jpg". This is the name of the source file used while inserting the picture into Word document using Word GUI. And there needs to be a file QR.jpg which contains the new content.
The result.docx then has all pictures named "QRTemplate.jpg" replaced with the content of the given file QR.jpg.
import java.io.FileInputStream;
import java.io.OutputStream;
import java.io.FileOutputStream;
import org.apache.poi.xwpf.usermodel.*;
public class WordReplacePictureData {
static XWPFPicture getPictureByName(XWPFRun run, String pictureName) {
if (pictureName == null) return null;
for (XWPFPicture picture : run.getEmbeddedPictures()) {
String nonVisualPictureName = picture.getCTPicture().getNvPicPr().getCNvPr().getName();
if (pictureName.equals(nonVisualPictureName)) {
return picture;
}
}
return null;
}
static void replacePictureData(XWPFPictureData source, String pictureResultPath) {
try ( FileInputStream in = new FileInputStream(pictureResultPath);
OutputStream out = source.getPackagePart().getOutputStream();
) {
byte[] buffer = new byte[2048];
int length;
while ((length = in.read(buffer)) > 0) {
out.write(buffer, 0, length);
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
static void replacePicture(XWPFRun run, String pictureName, String pictureResultPath) {
XWPFPicture picture = getPictureByName(run, pictureName);
if (picture != null) {
XWPFPictureData source = picture.getPictureData();
replacePictureData(source, pictureResultPath);
}
}
public static void main(String[] args) throws Exception {
String templatePath = "./source.docx";
String resultPath = "./result.docx";
String pictureTemplateName = "QRTemplate.jpg";
String pictureResultPath = "./QR.jpg";
try ( XWPFDocument document = new XWPFDocument(new FileInputStream(templatePath));
FileOutputStream out = new FileOutputStream(resultPath);
) {
for (IBodyElement bodyElement : document.getBodyElements()) {
if (bodyElement instanceof XWPFParagraph) {
XWPFParagraph paragraph = (XWPFParagraph)bodyElement;
for (XWPFRun run : paragraph.getRuns()) {
replacePicture(run, pictureTemplateName, pictureResultPath);
}
}
}
document.write(out);
}
}
}
I have a dirty workaround. Since the text block on the right side of the image is static, I replaced the text with screen-shot on the original docx. And now, when the placeholder image been substituted by the new image, everything is rendered as expected.
I am currently trying to generate a new docx file from an existing template in dotx format. I want to change the firstname, lastname, etc. in the header but I'm not able to access them for some reason...
My approach is the following:
public void generateDocX(Long id) throws IOException, InvalidFormatException {
//Get user per id
EmployeeDTO employeeDTO = employeeService.getEmployee(id);
//Location where the new docx file will be saved
FileOutputStream outputStream = new FileOutputStream(new File("/home/user/Documents/project/src/main/files/" + employeeDTO.getId() + "header.docx"));
//Get the template for generating the new docx file
File template = new File("/home/user/Documents/project/src/main/files/template.dotx");
OPCPackage pkg = OPCPackage.open(template);
XWPFDocument document = new XWPFDocument(pkg);
for (XWPFHeader header : document.getHeaderList()) {
List<XWPFParagraph> paragraphs = header.getParagraphs();
System.out.println("Total paragraphs in header are: " + paragraphs.size());
System.out.println("Total elements in the header are: " + header.getBodyElements().size());
for (XWPFParagraph paragraph : paragraphs) {
System.out.println("Paragraph text is: " + paragraph.getText());
List<XWPFRun> runs = paragraph.getRuns();
for (XWPFRun run : runs) {
String runText = run.getText(run.getTextPosition());
System.out.println("Run text is: " + runText);
}
}
}
//Write the changes to the new docx file and close the document
document.write(outputStream);
document.close();
}
The output in the console is either 1, null or empty string... I've tried several approaches from here, here and here but without any luck...
Here is what's inside the template.dotx
IBody.getParagraphs and IBody.getBodyElements- only get the paragraphs or body elements which are directly in that IBody. But your paragraphs are not directly in there but are in a separate text box or text frame. That's why they cannot be got this way.
Since *.docx is a ZIP archive containijg XML files for document, headers and footers, one could get all text runs of one IBody by creating a XmlCursor which selects all w:r XML elements. For a XWPFHeader this could look like so:
private List<XmlObject> getAllCTRs(XWPFHeader header) {
CTHdrFtr ctHdrFtr = header._getHdrFtr();
XmlCursor cursor = ctHdrFtr.newCursor();
cursor.selectPath("declare namespace w='http://schemas.openxmlformats.org/wordprocessingml/2006/main' .//*/w:r");
List<XmlObject> ctrInHdrFtr = new ArrayList<XmlObject>();
while (cursor.hasNextSelection()) {
cursor.toNextSelection();
XmlObject obj = cursor.getObject();
ctrInHdrFtr.add(obj);
}
return ctrInHdrFtr;
}
Now we have a list of all XML elements in that header which are text-run-elements in Word.
We could have a more general getAllCTRs which gets all CTR elements from any kind of IBody like so:
private List<XmlObject> getAllCTRs(IBody iBody) {
XmlCursor cursor = null;
List<XmlObject> ctrInIBody = new ArrayList<XmlObject>();
if (iBody instanceof XWPFHeaderFooter) {
XWPFHeaderFooter headerFooter = (XWPFHeaderFooter)iBody;
CTHdrFtr ctHdrFtr = headerFooter._getHdrFtr();
cursor = ctHdrFtr.newCursor();
} else if (iBody instanceof XWPFDocument) {
XWPFDocument document = (XWPFDocument)iBody;
CTDocument1 ctDocument1 = document.getDocument();
cursor = ctDocument1.newCursor();
} else if (iBody instanceof XWPFAbstractFootnoteEndnote) {
XWPFAbstractFootnoteEndnote footEndnote = (XWPFAbstractFootnoteEndnote)iBody;
CTFtnEdn ctFtnEdn = footEndnote.getCTFtnEdn();
cursor = ctFtnEdn.newCursor();
}
if (cursor != null) {
cursor.selectPath("declare namespace w='http://schemas.openxmlformats.org/wordprocessingml/2006/main' .//*/w:r");
while (cursor.hasNextSelection()) {
cursor.toNextSelection();
XmlObject obj = cursor.getObject();
ctrInIBody.add(obj);
}
}
return ctrInIBody ;
}
Now we have a list of all XML elements in that IBody which are text-run-elements in Word.
Having that we can get the text out of them like so:
private void printAllTextInTextRunsOfIBody(IBody iBody) throws Exception {
List<XmlObject> ctrInIBody = getAllCTRs(iBody);
for (XmlObject obj : ctrInIBody) {
CTR ctr = CTR.Factory.parse(obj.xmlText());
for (CTText ctText : ctr.getTList()) {
String text = ctText.getStringValue();
System.out.println(text);
}
}
}
This probably shows the next challenge. Because Word is very messy in creating text-run-elements. For example your placeholder <<Firstname>> can be split into text-runs << + Firstname + >>. The reason migt be different formatting or spell checking or something else. Even this is possible: << + Lastname + >>; << + YearOfBirth + >>. Or even this: <<Firstname + >> << + Lastname>>; << + YearOfBirth>>. You see, replacing the placeholders with text is nearly impossible because the placeholders may be split into multiple tex-runs.
To avoid this the template.dotx needs to be created from users who know what they are doing.
At first turn spell check off. Grammar check as well. If not, all found possible spell errors or grammar violations are in separate text-runs to mark them accordingly.
Second make sure the whole placeholder is eaqual formatted. Different formatted text also must be in separate text-runs.
I am really skeptic that this will work properly. But try it yourself.
Complete example:
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileInputStream;
import org.apache.poi.xwpf.usermodel.*;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.*;
import org.apache.xmlbeans.XmlObject;
import org.apache.xmlbeans.XmlCursor;
import java.util.List;
import java.util.ArrayList;
public class WordEditAllIBodys {
private List<XmlObject> getAllCTRs(IBody iBody) {
XmlCursor cursor = null;
List<XmlObject> ctrInIBody = new ArrayList<XmlObject>();
if (iBody instanceof XWPFHeaderFooter) {
XWPFHeaderFooter headerFooter = (XWPFHeaderFooter)iBody;
CTHdrFtr ctHdrFtr = headerFooter._getHdrFtr();
cursor = ctHdrFtr.newCursor();
} else if (iBody instanceof XWPFDocument) {
XWPFDocument document = (XWPFDocument)iBody;
CTDocument1 ctDocument1 = document.getDocument();
cursor = ctDocument1.newCursor();
} else if (iBody instanceof XWPFAbstractFootnoteEndnote) {
XWPFAbstractFootnoteEndnote footEndnote = (XWPFAbstractFootnoteEndnote)iBody;
CTFtnEdn ctFtnEdn = footEndnote.getCTFtnEdn();
cursor = ctFtnEdn.newCursor();
}
if (cursor != null) {
cursor.selectPath("declare namespace w='http://schemas.openxmlformats.org/wordprocessingml/2006/main' .//*/w:r");
while (cursor.hasNextSelection()) {
cursor.toNextSelection();
XmlObject obj = cursor.getObject();
ctrInIBody.add(obj);
}
}
return ctrInIBody ;
}
private void printAllTextInTextRunsOfIBody(IBody iBody) throws Exception {
List<XmlObject> ctrInIBody = getAllCTRs(iBody);
for (XmlObject obj : ctrInIBody) {
CTR ctr = CTR.Factory.parse(obj.xmlText());
for (CTText ctText : ctr.getTList()) {
String text = ctText.getStringValue();
System.out.println(text);
}
}
}
private void replaceTextInTextRunsOfIBody(IBody iBody, String placeHolder, String textValue) throws Exception {
List<XmlObject> ctrInIBody = getAllCTRs(iBody);
for (XmlObject obj : ctrInIBody) {
CTR ctr = CTR.Factory.parse(obj.xmlText());
for (CTText ctText : ctr.getTList()) {
String text = ctText.getStringValue();
if (text != null && text.contains(placeHolder)) {
text = text.replace(placeHolder, textValue);
ctText.setStringValue(text);
obj.set(ctr);
}
}
}
}
public void generateDocX() throws Exception {
FileOutputStream outputStream = new FileOutputStream(new File("./" + 1234 + "header.docx"));
//Get the template for generating the new docx file
File template = new File("./template.dotx");
XWPFDocument document = new XWPFDocument(new FileInputStream(template));
//traverse all headers
for (XWPFHeader header : document.getHeaderList()) {
printAllTextInTextRunsOfIBody(header);
replaceTextInTextRunsOfIBody(header, "<<Firstname>>", "Axel");
replaceTextInTextRunsOfIBody(header, "<<Lastname>>", "Richter");
replaceTextInTextRunsOfIBody(header, "<<ProfessionalTitle>>", "Skeptic");
}
//traverse all footers
for (XWPFFooter footer : document.getFooterList()) {
printAllTextInTextRunsOfIBody(footer);
replaceTextInTextRunsOfIBody(footer, "<<Firstname>>", "Axel");
replaceTextInTextRunsOfIBody(footer, "<<Lastname>>", "Richter");
replaceTextInTextRunsOfIBody(footer, "<<ProfessionalTitle>>", "Skeptic");
}
//traverse document body; note: tables needs not be traversed separately because they are in document body
printAllTextInTextRunsOfIBody(document);
replaceTextInTextRunsOfIBody(document, "<<Firstname>>", "Axel");
replaceTextInTextRunsOfIBody(document, "<<Lastname>>", "Richter");
replaceTextInTextRunsOfIBody(document, "<<ProfessionalTitle>>", "Skeptic");
//traverse all footnotes
for (XWPFFootnote footnote : document.getFootnotes()) {
printAllTextInTextRunsOfIBody(footnote);
replaceTextInTextRunsOfIBody(footnote, "<<Firstname>>", "Axel");
replaceTextInTextRunsOfIBody(footnote, "<<Lastname>>", "Richter");
replaceTextInTextRunsOfIBody(footnote, "<<ProfessionalTitle>>", "Skeptic");
}
//traverse all endnotes
for (XWPFEndnote endnote : document.getEndnotes()) {
printAllTextInTextRunsOfIBody(endnote);
replaceTextInTextRunsOfIBody(endnote, "<<Firstname>>", "Axel");
replaceTextInTextRunsOfIBody(endnote, "<<Lastname>>", "Richter");
replaceTextInTextRunsOfIBody(endnote, "<<ProfessionalTitle>>", "Skeptic");
}
//since document was opened from *.dotx the content type needs to be changed
document.getPackage().replaceContentType(
"application/vnd.openxmlformats-officedocument.wordprocessingml.template.main+xml",
"application/vnd.openxmlformats-officedocument.wordprocessingml.document.main+xml");
//Write the changes to the new docx file and close the document
document.write(outputStream);
outputStream.close();
document.close();
}
public static void main(String[] args) throws Exception {
WordEditAllIBodys app = new WordEditAllIBodys();
app.generateDocX();
}
}
Btw.: Since your document was opened from *.dotx the content type needs to be changed from wordprocessingml.template to wordprocessingml.document. Else Word will not open the resulting *.docx document. See Converting a file with ".dotx" extension (template) to "docx" (Word File).
As I am skeptic about the replacing-placeholder-text-approach, my preferred way is filling forms. See Problem with processing word document java. Of course such form fields cannot be used in header or footer. So headers or footers schould be created form scratch at whole.
Hello I'm creating javafx app with iText. I have html editor to write text and I want to create pdf from it. Everything works but when I have a really long line that is wrapped in html editor, in pdf it isn't wrapped, its out of page, how can I set wrapping page? here is my code:
PdfWriter writer = null;
try {
writer = new PdfWriter("doc.pdf");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
//Initialize PDF document
PdfDocument pdf = new PdfDocument(writer);
// Initialize document
Document document = new Document(pdf, PageSize.A4);
List<IElement> list = null;
try {
list = HtmlConverter.convertToElements(editor.getHtmlText());
} catch (IOException e) {
e.printStackTrace();
}
// add elements to document
for (IElement p : list) {
document.add((IBlockElement) p);
}
// close document
document.close();
I also want to set line spacing for this text
Thank you for help
I don't get any errors for the following code:
public class stack_overflow_0008 extends AbstractSupportTicket{
private static String LONG_PIECE_OF_TEXT =
"Once upon a midnight dreary, while I pondered, weak and weary," +
"Over many a quaint and curious volume of forgotten lore—" +
"While I nodded, nearly napping, suddenly there came a tapping," +
"As of some one gently rapping, rapping at my chamber door." +
"Tis some visitor,” I muttered, “tapping at my chamber door—" +
"Only this and nothing more.";
public static void main(String[] args)
{
PdfWriter writer = null;
try {
writer = new PdfWriter(getOutputFile());
} catch (FileNotFoundException e) {
e.printStackTrace();
}
//Initialize PDF document
PdfDocument pdf = new PdfDocument(writer);
// Initialize document
Document document = new Document(pdf, PageSize.A4);
List<IElement> list = null;
try {
list = HtmlConverter.convertToElements("<p>" + LONG_PIECE_OF_TEXT + "</p>");
} catch (IOException e) {
e.printStackTrace();
}
for (IElement p : list) {
document.add((IBlockElement) p);
}
document.close();
}
}
The document is a single (A4) page PDF with one string neatly wrapped.
I think perhaps the content of your string is to blame?
Could you post the HTML you get from this editor object?
Update:
Using the code from this answer on the HTML shared in a new comment to the question, I get the following result:
As you can see, the content is distributed over two lines. No content "falls off the page."
I am currently modifying the logic for generating a PDF report, using itext package (itext-2.1.7.jar). The report is generated first, then - table of contents (TOC) and then TOC is inserted into the report file, using PdfStamper and it's method - replacePage:
PdfStamper stamper = new PdfStamper(new PdfReader(finalFile.getAbsolutePath()),
new FileOutputStream(reportFile));
stamper.replacePage(new PdfReader(tocFile.getAbsolutePath()), 1, 2);
However, I wanted TOC to also have internal links to point to the right chapter. Using replacePage() method, unfortunately, removes all links and annotations, so I tried another way. I've used a method I've found to merge the report file and the TOC file. It did the trick, meaning that the links were now preserved, but they don't seem to work, the user can click them, but nothing happens. I've placed internal links on other places in the report file, for testing purposes, and they seem to work, but they don't work when placed on the actual TOC. TOC is generated separately, here's how I've created the links (addLeadingDots is a local method, not pertinent to the problem):
Chunk anchor = new Chunk(idx + ". " + chapterName + getLeadingDots(chapterName, pageNumber) + " " + pageNumber, MainReport.FONT12);
String anchorLocation = idx+chapterName.toUpperCase().replaceAll("\\s","");
anchor.setLocalGoto(anchorLocation);
line = new Paragraph();
line.add(anchor);
line.setLeading(6);
table.addCell(line);
And this is how I've created anchor destinations on the chapters in the report file:
Chunk target = new Chunk(title.toUpperCase(), font);
String anchorDestination = title.toUpperCase().replace(".", "").replaceAll("\\s","");
target.setLocalDestination(anchorDestination);
Paragraph p = new Paragraph(target);
p.setAlignment(Paragraph.ALIGN_CENTER);
doc.add(p);
Finally, here's the method that supposed to merge report file and the TOC:
public static void mergePDFs(String originalFilePath, String fileToInsertPath, String outputFile, int location) {
PdfReader originalFileReader = null;
try {
originalFileReader = new PdfReader(originalFilePath);
} catch (IOException ex) {
System.out.println("ITextHelper.addPDFToPDF(): can't read original file: " + ex);
}
PdfReader fileToAddReader = null;
try {
fileToAddReader = new PdfReader(fileToInsertPath);
} catch (IOException ex) {
System.out.println("ITextHelper.addPDFToPDF(): can't read fileToInsert: " + ex);
}
if (originalFileReader != null && fileToAddReader != null) {
int numberOfOriginalPages = originalFileReader.getNumberOfPages();
Document document = new Document();
PdfCopy copy = null;
try {
copy = new PdfCopy(document, new FileOutputStream(outputFile));
document.open();
for (int i = 1; i <= numberOfOriginalPages; i++) {
if (i == location) {
for (int j = 1; j <= fileToAddReader.getNumberOfPages(); j++) {
copy.addPage(copy.getImportedPage(fileToAddReader, j));
}
}
copy.addPage(copy.getImportedPage(originalFileReader, i));
}
document.close();
} catch (DocumentException | FileNotFoundException ex) {
m_logger.error("ITextHelper.addPDFToPDF(): can't read output location: " + ex);
} catch (IOException ex) {
m_logger.error(Level.SEVERE, ex);
}
}
}
So, the main question is, what happens to the links, after both pdf documents are merged and how to make them work? I'm not too experienced with itext, so any help is appreciated.
Thanks for your help
I'm writing a java code that utilizes Apache-poi to read ms-office .doc file and itext jar API's to create and write into pdf file. I have done reading texts and tables printed in the .doc file. Now i'm looking for a solution that reads images written in the document. I have coded as following to read images in the document file. Why this code is not working.
public static void main(String[] args) {
POIFSFileSystem fs = null;
Document document = new Document();
WordExtractor extractor = null ;
try {
fs = new POIFSFileSystem(new FileInputStream("C:\\DATASTORE\\tableandImage.doc"));
HWPFDocument hdocument=new HWPFDocument(fs);
extractor = new WordExtractor(hdocument);
OutputStream fileOutput = new FileOutputStream(new File("C:/DATASTORE/tableandImage.pdf"));
PdfWriter.getInstance(document, fileOutput);
document.open();
Range range=hdocument.getRange();
String readText=null;
PdfPTable createTable;
CharacterRun run;
PicturesTable picture;
for(int i=0;i<range.numParagraphs();i++) {
Paragraph par = range.getParagraph(i);
readText=par.text();
if(!par.isInTable()) {
if(readText.endsWith("\n")) {
readText=readText+"\n";
document.add(new com.itextpdf.text.Paragraph(readText));
} if(readText.endsWith("\r")) {
readText += "\n";
document.add(new com.itextpdf.text.Paragraph(readText));
}
run =range.getCharacterRun(i);
picture=hdocument.getPicturesTable();
if(picture.hasPicture(run)) {
//if(run.isSpecialCharacter()) {
Picture pic=picture.extractPicture(run, true);
byte[] picturearray=pic.getContent();
com.itextpdf.text.Image image=com.itextpdf.text.Image.getInstance(picturearray);
document.add(image);
}
} else if (par.isInTable()) {
Table table = range.getTable(par);
TableRow tRow1= table.getRow(0);
int numColumns=tRow1.numCells();
createTable=new PdfPTable(numColumns);
for (int rowId=0;rowId<table.numRows();rowId++) {
TableRow tRow = table.getRow(rowId);
for (int cellId=0;cellId<tRow.numCells();cellId++) {
TableCell tCell = tRow.getCell(cellId);
PdfPCell c1 = new PdfPCell(new Phrase(tCell.text()));
createTable.addCell(c1);
}
}
document.add(createTable);
}
}
}catch(IOException e) {
System.out.println("IO Exception");
e.printStackTrace();
}
catch(Exception exep) {
exep.printStackTrace();
}finally {
document.close();
}
}
The problems are:
1. Condition if(picture.hasPicture(run)) is not satisfying but document has jpeg image.
I'm getting following exception while reading table.
java.lang.IllegalArgumentException: This paragraph is not the first one in the table
at org.apache.poi.hwpf.usermodel.Range.getTable(Range.java:876)
at pagecode.ReadDocxOrDocFile.main(ReadDocxOrDocFile.java:113)
Can anybody help me to solve the problem.
Thank you.
Regarding your exception:
Your code iterates over all paragraphs and calls isInTable() for each one of them. Since tables are commonly composed of several such paragraphs, your call to getTable() also gets executed several times for a single table.
However, what your code should do instead is to find the first paragraph of a table, then process all paragraphs therein (via getRow(m).getCell(n)) and ultimately continue with the outer loop in the first paragraph after the table. Codewise this may look roughly like the following (assuming no merged cells, no nested tables and no other funny edge cases):
if (par.isInTable()) {
Table table = range.getTable(par);
for (int rn=0; rn<table.numRows(); rn++) {
TableRow row = table.getRow(rn);
for (int cn=0; cn<row.numCells(); cn++) {
TableCell cell = row.getCell(cn);
for (int pn=0; pn<cell.numParagraphs(); pn++) {
Paragraph cellParagraph = cell.getParagraph(pn);
// your PDF conversion code goes here
}
}
}
i += table.numParagraphs()-1; // skip the already processed (table-)paragraphs in the outer loop
}
Regarding the pictures issue:
Am I guessing right that you are trying to obtain the picture which is anchored within a given paragraph? Unfortunately, the predefined methods of POI only work if the picture is not embedded within a field (which is rather rare, actually). For field-based images (i.e. preview images of embedded OLEs) you should do something like the following (untested!):
PictureStore pictureStore = new PictureStore(hdocument);
// bla bla ...
for (int cr=0; cr < par.numCharacterRuns(); cr++) {
CharacterRun characterRun = par.getCharacterRun(cr);
Field field = hdocument.getFields().getFieldByStartOffset(FieldsDocumentPart.MAIN, characterRun.getStartOffset());
if (field != null && field.getType() == 0x3A) { // 0x3A is type "EMBED"
Picture pic = pictureStore.getPicture(field.secondSubrange(characterRun));
}
}
For a list of possible values of Field.getType() see here.