Adding data to itext to existing pdf
I am working with itext pdf library . I want to add content to the end of an existing pdf.
Let's say for example an existing pdf (say Original.pdf) says 4 pages, so I want to add another page, i.e. page # 5 with Hello World content I added content and saved it in the same pdf format i.e. Original.pdf
So after closing my Original.pdf file there will be 5 pages, i.e. 4 pages (with default content they already have) + 1 page with Hello World content I added content
I am using this code but showing exception
String in="Original.pdf";
String out="Original.pdf";
PdfReader reader = new PdfReader(in);
PdfStamper stamper = new PdfStamper(reader,new FileOutputStream(out));
int totalPages=reader.getNumberOfPages();
stamper.insertPage(totalPages+1, PageSize.A4);
stamper.addAnnotation(
PdfAnnotation.createText(
stamper.getWriter(),
new Rectangle(30f, 750f, 80f, 800f),
"inserted page", "This page is the title page.",
true,
null)
,
reader.getNumberOfPages()
);
stamper.close();
java.io.EOFException
Thanks in advance.
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I think the problem is with what you are using FileOutputStream
and FileInputStream
in the same file.
I would recommend saving to ByteArrayOutputStream pdf, close the template and then saving ByteArrayOutputStream
to your file.
I used IOUtils.write (byte data [], OutputStream output) to save ByteArrayOutputStream
to FileOutputStream
.
I tested this and it works:
String in = "Original.pdf";
String out = "Original.pdf";
PdfReader reader = new PdfReader(in);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PdfStamper stamper = new PdfStamper(reader, baos );
int totalPages = reader.getNumberOfPages();
stamper.insertPage(totalPages + 1, PageSize.A4);
stamper.addAnnotation(PdfAnnotation.createText(stamper.getWriter(), new Rectangle(30f, 750f, 80f, 800f), "inserted page", "This page is the title page.", true, null),
reader.getNumberOfPages());
stamper.close();
FileOutputStream fileOutputStream = new FileOutputStream(out);
IOUtils.write(baos.toByteArray(), fileOutputStream);
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Good. You can do something like this.
String out="Original.pdf";
File oldFile = new File(out);
try {
Document document = new Document();
PdfCopy filePdfCopy = new PdfCopy(document,
new FileOutputStream(oldFile, true));
document.open();
PdfReader reader = new PdfReader(newFile.getAbsolutePath());
PdfReader reader_old = new PdfReader(
oldFile.getAbsolutePath());
filePdfCopy.addDocument(reader);
filePdfCopy.addDocument(reader_old);
filePdfCopy.close();
reader.close();
reader_old.close();
document.close();
stats.addMergedPdf();
} catch (FileNotFoundException e) {
logger.error("FileNotFoundException: ", e);
stats.addError();
} catch (DocumentException e) {
logger.error("DocumentException: ", e);
stats.addError();
} catch (IOException e) {
logger.error("IOException: ", e);
stats.addError();
}
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