I'm trying to change reorder pages of my PDF document, but i can't and I don't know why.
I read several articals about changing order, it's java(iText) and i have got few problems with it.(exampl1, exampl2, example3). This example on c#, but there is using other method(exampl4)
I want take my TOC on 12 page and put to 2 page. After 12 page I have other content. This is my template for change order of pages:
String.Format("1,%s, 2-%s, %s-%s", toc, toc-1, toc+1, n)
This is my method for changing order of pages:
public void ChangePageOrder(string path)
{
MemoryStream baos = new MemoryStream();
PdfReader sourcePDFReader = new PdfReader(path);
int toc = 12;
int n = sourcePDFReader.NumberOfPages;
sourcePDFReader.SelectPages(String.Format("1,%s, 2-%s, %s-%s", toc, toc-1, toc+1, n));
using (var fs = new FileStream(path, FileMode.Open, FileAccess.ReadWrite))
{
PdfStamper stamper = new PdfStamper(sourcePDFReader, fs);
stamper.Close();
}
}
Here is call to method:
...
doc.Close();
ChangePageOrder(filePath);
What am I doing not right?
Thank you.
Your code can't work because you are using path to create the PdfReader as well as to create the FileStream. You probably get an error such as "The file is in use" or "The file can't be accessed".
This is explained here:
StackOverflow: How to update a PDF without creating a new PDF?
Official web site:
How to update a PDF without creating a new PDF?
You create a MemoryStream() named baos, but you aren't using that object anywhere. One way to solve your problem, is to replace the FileStream when you first create your PDF by that MemoryStream, and then use the bytes stored in that memory stream to create a PdfReader instance. In that case, PdfStamper won't be writing to a file that is in use.
Another option would be to use a different path. For instance: first you write the document to a file named my_story_unordered.pdf (created by PdfWriter), then you write the document to a file named my_story_reordered.pdf (created by PdfStamper).
It's also possible to create the final document in one go. In that case, you need to switch to linear mode. There's an example in my book "iText in Action - Second Edition" that shows how to do this: MovieHistory1
In the C# port of this example, you have:
writer.SetLinearPageMode();
In normal circumstances, iText will create a page tree with branches and leaves. As soon a a branch has more than 10 leaves, a new branch is created. With setLinearPageMode(), you tell iText not to do this. The complete page tree will consist of one branch with nothing but leaves (no extra branches). This is bad from the point of view of performance when viewing the document, but it's acceptable if the number of pages in your document is limited.
Once you've switched to page mode, you can reorder the pages like this:
document.NewPage();
// get the total number of pages that needs to be reordered
int total = writer.ReorderPages(null);
// change the order
int[] order = new int[total];
for (int i = 0; i < total; i++) {
order[i] = i + toc;
if (order[i] > total) {
order[i] -= total;
}
}
// apply the new order
writer.ReorderPages(order);
Summarized: if your document doesn't have many pages, use the ReorderPages method. If your document has many pages, use the method you've been experimenting with, but do it correctly. Don't try to write to the file that you are still trying to read.
Without going into details about what you should do you can loop through all pages from a pdf, put them into a new pdf doc with all the pages. You can put your logic inside the for loop.
reader = new PdfReader(sourcePDFpath);
sourceDocument = new Document(reader.GetPageSizeWithRotation(startpage));
pdfCopyProvider = new PdfCopy(sourceDocument, new System.IO.FileStream(outputPDFpath, System.IO.FileMode.Create));
sourceDocument.Open();
for (int i = startpage; i <= endpage; i++)
{
importedPage = pdfCopyProvider.GetImportedPage(reader, i);
pdfCopyProvider.AddPage(importedPage);
}
sourceDocument.Close();
reader.Close();
Related
In an application I am trying to append multiple PDF files to a single already existing file. Using iText I found this
Using iText I found this tutorial, which, in my case doesn't seem to work.
Here are some ways I've tried to make it work.
String path = "path/to/destination.pdf";
PdfCopy mergedFile = new PdfCopy(pdf, new FileOutputStream(path));
PdfReader reader;
for(String toMergePath : toMergePaths){
reader = new PdfReader(toMergePath);
mergedFile.addDocument(reader);
mergedFile.freeReader(reader);
reader.close();
}
mergedFile.close();
When I try to add the document logcat tells me that the document is not open.
But, pdf (the original document) is already open by other methods, and closed only after this one. And, mergedFile is exactly like in the tutorial, which, I believe, must be right.
Did anyone experience the same problem? Otherwise, do anyone know a better method to do what I want to do?
I've seen other solutions copying the bite from one page and append them to a new file but I'm affraid this will "compile" the annotations which I need.
Thank you for your help,
Cordially,
Matthieu Meunier
I hope this code will help you.
public static void mergePdfs(){
try {
String[] files = { "D:\\1.pdf" ,"D:\\2.pdf" ,"D:\\3.pdf" ,"D:\\4.pdf"};
Document pDFCombineUsingJava = new Document();
PdfCopy copy = new PdfCopy(pDFCombineUsingJava , new FileOutputStream("D:\\CombinedFile.pdf"));
pDFCombineUsingJava.open();
PdfReader ReadInputPDF;
int number_of_pages;
for (int i = 0; i < files.length; i++) {
ReadInputPDF = new PdfReader(files[i]);
copy.addDocument(ReadInputPDF);
copy.freeReader(ReadInputPDF);
}
pDFCombineUsingJava.close();
}
catch (Exception i)
{
System.out.println(i);
}
}
I am trying to populate repeated forms with PDFbox. I am using a TreeMap and populating the forms with individual records. The format of the pdf form is such that there are six records listed on page one and a static page inserted on page two. (For a TreeMap larger than six records, the process repeats). The error Im getting is specific to the size of the TreeMap. Therein lies my problem. I can't figure out why when I populate the TreeMap with more than 35 entries I get this warning:
Apr 23, 2018 2:36:25 AM org.apache.pdfbox.cos.COSDocument finalize
WARNING: Warning: You did not close a PDF Document
public class test {
public static void main(String[] args) throws IOException, IOException {
// TODO Auto-generated method stub
File dataFile = new File("dataFile.csv");
File fi = new File("form.pdf");
Scanner fileScanner = new Scanner(dataFile);
fileScanner.nextLine();
TreeMap<String, String[]> assetTable = new TreeMap<String, String[]>();
int x = 0;
while (x <= 36) {
String lineIn = fileScanner.nextLine();
String[] elements = lineIn.split(",");
elements[0] = elements[0].toUpperCase().replaceAll(" ", "");
String key = elements[0];
key = key.replaceAll(" ", "");
assetTable.put(key, elements);
x++;
}
PDDocument newDoc = new PDDocument();
int control = 1;
PDDocument doc = PDDocument.load(fi);
PDDocumentCatalog cat = doc.getDocumentCatalog();
PDAcroForm form = cat.getAcroForm();
for (String s : assetTable.keySet()) {
if (control <= 6) {
PDField IDno1 = (form.getField("IDno" + control));
PDField Locno1 = (form.getField("locNo" + control));
PDField serno1 = (form.getField("serNo" + control));
PDField typeno1 = (form.getField("typeNo" + control));
PDField maintno1 = (form.getField("maintNo" + control));
String IDnoOne = assetTable.get(s)[1];
//System.out.println(IDnoOne);
IDno1.setValue(assetTable.get(s)[0]);
IDno1.setReadOnly(true);
Locno1.setValue(assetTable.get(s)[1]);
Locno1.setReadOnly(true);
serno1.setValue(assetTable.get(s)[2]);
serno1.setReadOnly(true);
typeno1.setValue(assetTable.get(s)[3]);
typeno1.setReadOnly(true);
String type = "";
if (assetTable.get(s)[5].equals("1"))
type += "Hydrotest";
if (assetTable.get(s)[5].equals("6"))
type += "6 Year Maintenance";
String maint = assetTable.get(s)[4] + " - " + type;
maintno1.setValue(maint);
maintno1.setReadOnly(true);
control++;
} else {
PDField dateIn = form.getField("dateIn");
dateIn.setValue("1/2019 Yearlies");
dateIn.setReadOnly(true);
PDField tagDate = form.getField("tagDate");
tagDate.setValue("2019 / 2020");
tagDate.setReadOnly(true);
newDoc.addPage(doc.getPage(0));
newDoc.addPage(doc.getPage(1));
control = 1;
doc = PDDocument.load(fi);
cat = doc.getDocumentCatalog();
form = cat.getAcroForm();
}
}
PDField dateIn = form.getField("dateIn");
dateIn.setValue("1/2019 Yearlies");
dateIn.setReadOnly(true);
PDField tagDate = form.getField("tagDate");
tagDate.setValue("2019 / 2020");
tagDate.setReadOnly(true);
newDoc.addPage(doc.getPage(0));
newDoc.addPage(doc.getPage(1));
newDoc.save("PDFtest.pdf");
Desktop.getDesktop().open(new File("PDFtest.pdf"));
}
I cant figure out for the life of me what I'm doing wrong. This is the first week I've been working with PDFbox so I'm hoping its something simple.
Updated Error Message
WARNING: Warning: You did not close a PDF Document
Exception in thread "main" java.io.IOException: COSStream has been closed and cannot be read. Perhaps its enclosing PDDocument has been closed?
at org.apache.pdfbox.cos.COSStream.checkClosed(COSStream.java:77)
at org.apache.pdfbox.cos.COSStream.createRawInputStream(COSStream.java:125)
at org.apache.pdfbox.pdfwriter.COSWriter.visitFromStream(COSWriter.java:1200)
at org.apache.pdfbox.cos.COSStream.accept(COSStream.java:383)
at org.apache.pdfbox.cos.COSObject.accept(COSObject.java:158)
at org.apache.pdfbox.pdfwriter.COSWriter.doWriteObject(COSWriter.java:522)
at org.apache.pdfbox.pdfwriter.COSWriter.doWriteObjects(COSWriter.java:460)
at org.apache.pdfbox.pdfwriter.COSWriter.doWriteBody(COSWriter.java:444)
at org.apache.pdfbox.pdfwriter.COSWriter.visitFromDocument(COSWriter.java:1096)
at org.apache.pdfbox.cos.COSDocument.accept(COSDocument.java:419)
at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1367)
at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1254)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1232)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1204)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1192)
at test.test.main(test.java:87)
The warning by itself
You appear to get the warning wrong. It says:
Warning: You did not close a PDF Document
So in contrast to what you think, "PDFbox saying PDDocument closed when its not", PDFBox says that you did not close a document!
After your edit one sees that it actually says that a COSStream has been closed and that a possible cause is that the enclosing PDDocument already has been closed. This is a mere possibility!
The warning in your case
That been said, by adding pages from one document to another you probably end up having references to those pages from both documents. In that case in the course of closing both documents (e.g. automatically via garbage collection), the second one closing may indeed stumble across some already closed COSStream instances.
So my first advice to simply do close the documents at the end by
doc.close();
newDoc.close();
probably won't remove the warnings, merely change their timing.
Actually you don't merely create two documents doc and newDoc, you even create new PDDocument instances and assign them to doc again and again, in the process setting the former document objects in that variable free for garbage collection. So you eventually have a big bunch of documents to be closed as soon as not referenced anymore.
I don't think it would be a good idea to close all those documents in doc early, in particular not before saving newDoc.
But if your code will eventually be run as part of a larger application instead of as a small, one-shot test application, you should collect all those PDDocument instances in some Collection and explicitly close them right after saving newDoc and then clear the collection.
Actually your exception looks like one of those lost PDDocument instances has already been closed by garbage collection, so you should collect the documents even in case of a simple one-shot utility to keep them from being GC disposed.
(#Tilman, please correct me if I'm wrong...)
Importing pages
To prevent problems with different documents sharing pages, you can try and import the pages to the target document and thereafter add the imported page to the target document page tree. I.e. replace
newDoc.addPage(doc.getPage(0));
newDoc.addPage(doc.getPage(1));
by
newDoc.addPage(newDoc.importPage(doc.getPage(0)));
newDoc.addPage(newDoc.importPage(doc.getPage(1)));
This should allow you to close each PDDocument instance in doc before losing it.
There are certain drawbacks to this, though, cf. the method JavaDoc and this answer here.
An actual issue in your code
In your combined document you will have many fields with the same name (at least in case of a sufficiently high number of entries in your CSV file) which you initially set to different values. And you access the fields from the PDAcroForm of the respective original document but don't add them to the PDAcroForm of the combined result document.
This is asking for trouble! The PDF format does consider forms to be document-wide with all fields referenced (directly or indirectly) from the AcroForm dictionary of the document, and it expects fields with the same name to effectively be different visualizations of the same field and therefore to all have the same value.
Thus, PDF processors might handle your document fields in unexpected ways, e.g.
by showing the same value in all fields with the same name (as they are expected to have the same value) or
by ignoring your fields (as they are not in the document AcroForm structure).
In particular programmatic reading of your PDF field values will fail because in that context the form is definitively considered document-wide and based in AcroForm. PDF viewers on the other hand might first show your set values and make look things ok.
To prevent this you should rename the fields before merging. You might consider using the PDFMergerUtility which does such a renaming under the hood. For an example usage of that utility class have a look at the PDFMergerExample.
Even though the above answer was marked as the solution to the problem, since the solution is buried in the comments, I wanted to add this answer at this level. I spent several hours searching for the solution.
My code snippets and comments.
// Collection solely for purpose of preventing premature garbage collection
List<PDDocument> sourceDocuments = new ArrayList<>( );
...
// Source document (actually inside a loop)
PDDocument docIn = PDDocument.load( artifactBytes );
// Add document to collection before using it to prevent the problem
sourceDocuments.add( docIn );
// Extract from source document
PDPage extractedPage = docIn.getPage( 0 );
// Add page to destination document
docOut.addPage( extractedPage );
...
// This was failing with "COSStream has been closed and cannot be read."
// Now it works.
docOut.save( bundleStream );
I am trying to read a PDF file trough IText,
Program successfully read pdf file but unable to include spaces.
program:
public void parse(String filename) throws IOException {
PdfReader reader = new PdfReader(filename);
PdfReaderContentParser pdfReaderContentParser = new PdfReaderContentParser(reader);
TextExtractionStrategy strategy = null;
for (int i=1; i<= reader.getNumberOfPages(); i++) {
String text = PdfTextExtractor.getTextFromPage(reader, i, new LocationTextExtractionStrategy());
System.out.println(text);
}
}
here is data need to get from pdf
When program is reading the pdf then output is:
DATE MODE PARTICULARS DEPOSITS WITHDRAWALS BALANCE
01-04-2017 B/F 54,396.82
if you see in image Date is 01-04-2017 , MODE have empty PARTICULARS value is B/F, DEPOSITS and WITHDRAWALS is also empty value and BALANCE is 54,396.82
same data i need in text form
e.g.-->
DATE MODE PARTICULARS DEPOSITS WITHDRAWALS BALANCE
01-04-2017 B/F 54,396.82
Need help, thanks in advance.
You are extracting text from the PDF, the result is correct, it is not missing spaces, as there are no spaces in the raw text.
However (I missed that earlier, so I'm editing), you are using a LocationTextExtractionStrategy, which is "table-aware". This is good, but at the end getTextFromPage discards that table-aware information.
So instead you could create your own strategy implementation that would extend LocationTextExtractionStrategy, add a getTabulatedText() method to spit out the text with spaces inserted where you want them. Take inspiration from getResultantText(), see how it inserts a single space between each cell... In your code you would insert as many spaces (or tabs) as needed. See this answer for an example.
MyTextExtractionStrategy strategy = new MyTextExtractionStrategy();
for (int i=1; i<= reader.getNumberOfPages(); i++) {
String rawText = PdfTextExtractor.getTextFromPage(reader, i, strategy);
String tabulatedText = strategy.getTabulatedText();
System.out.println(text);
}
(maybe there is a "strategy" implementation that already does that, but I don't know it)
Im saving (generated) Word documents as file via jacob by printing them into a file (i have to do it like this because the file is required from legacy programms)
The problem is if i do this for multiple files, every second file is not written correctly.
The first file is ok.
2nd is only written about 80% of the file.
3rd is ok
4th is the same as the 2nd (exactly the same filesize as the 2nd)
... and so on
This is my code.
public static void main(String args[]) {
Variant background = new Variant(false);
Variant append = new Variant(false);
Variant range = new Variant(0);//wdPrintAllDocument
ActiveXComponent oleComponent = new ActiveXComponent("Word.Application");
Variant var = Dispatch.get(oleComponent, "Documents");
Dispatch document = var.getDispatch();
Dispatch doc = Dispatch.call(document, "Open", "c:/temp/Test.rtf").toDispatch();
for (int i = 0; i < 10; i++) {
Dispatch.call(doc, "PrintOut", background, append, range, new Variant("c:/temp/test" + i));
}
Dispatch.call(doc, "Close", 0);
Dispatch.call(oleComponent, "Quit");
}
The problem appears on different printers (the pdf printer for example works)
why every 2nd file? word problem? printer (driver) problem?
help is very much appreciated
I'm trying to count pages from a word document with java.
This is my actual code, i'm using the Apache POI libraries
String path1 = "E:/iugkh";
File f = new File(path1);
File[] files = f.listFiles();
int pagesCount = 0;
for (int i = 0; i < files.length; i++) {
POIFSFileSystem fis = new POIFSFileSystem(new FileInputStream(files[i]));
HWPFDocument wdDoc = new HWPFDocument(fis);
int pagesNo = wdDoc.getSummaryInformation().getPageCount();
pagesCount += pagesNo;
System.out.println(files[i].getName()+":\t"+pagesNo);
}
The output is:
ten.doc: 1
twelve.doc: 1
nine.doc: 1
one.doc: 1
eight.doc: 1
4teen.doc: 1
5teen.doc: 1
six.doc: 1
seven.doc: 1
And this is not what i expected, as the first three documents' page length is 4 and the other are from 1 to 5 pages long.
What am i missing?
Do i have to use another library to count the pages correctly?
Thanks in advance
This may help you. It counts the number of form feeds (sometimes used to separate pages), but I'm not sure if it's gonna work for all documents (I guess it does not).
WordExtractor extractor = new WordExtractor(document);
String[] paragraphs = extractor.getParagraphText();
int pageCount = 1;
for (int i = 0; i < paragraphs.length; ++i) {
if (paragraphs[i].indexOf("\f") >= 0) {
++pageCount;
}
}
System.out.println(pageCount);
This alas is a bug some versions of Word (pre-2010 versions apparently, possibly just in Word 9.0 aka 2000) or at least in some versions of the COM previewer that's used to count the pages. The apache devs refused to implement a workaround for it: https://issues.apache.org/jira/browse/TIKA-1523
In fact when you open the file in Word, it of course shows the real pages and it also recalculates the count, but initially it also shows "1". But here, the metadata as saved in the file is simply "1" or maybe nothing (see below). POI does not "reflow" the layout to calculate that information.
This is why the metadata is only updated by the word processing program on opening and editing the file. If you instruct Word 2010 to open the file "read only" (which it does because its downloaded from internet), it shows "" in the page column. See 2nd screenshot. So clearly a bug in this file, not TIKA's or POI's issue.
I also found in there that the bug (for Word 9.0/2000) was confirmed by MS: http://support.microsoft.com/kb/212653/en-us
If opening and re-closing with a new version of Word is not possible/available, another workaround would be to covert the documents to pdf (or even xps) and count the pages of that.