Hello,
I have one observation from the code I wrote from PDF file split up using
iText.
I have two PDFs for size 182 KB and 185 KB.
I merged them using acrobat writer. The merged file size is displayed as
349KB.
Now I am splitting the merged file exactly into two files giving correct
page number.
I get two new files but there size is 184 KB and 186 KB instead of 182 KB
and 185 KB.
In my application these files give errors as my code is unable to find the
required form fields in these files where are the original files work
correctly.
There two files when opened in acrobat reader looks content wise same as
original files.
My code for splitting is as follows:
public byte[] splitPDF(byte[] inputBytes,
int fromPage, int toPage) throws IOException {
Document document = new Document();
boolean isException = false;
byte[] outputBytes = new byte[inputBytes.length];
ByteArrayOutputStream outputStream = new
ByteArrayOutputStream(outputBytes.length);
try {
PdfReader inputPDF = new PdfReader(inputBytes);
int totalPages = inputPDF.getNumberOfPages();
//make fromPage equals to toPage if it is greater
if(fromPage > toPage ) {
fromPage = toPage;
}
if(toPage > totalPages) {
toPage = totalPages;
}
// Create a writer for the outputstream
PdfWriter writer = PdfWriter.getInstance(document,
outputStream);
document.open();
PdfContentByte cb = writer.getDirectContent(); // Holds the PDF
data
PdfImportedPage page;
while(fromPage <= toPage) {
document.newPage();
page = writer.getImportedPage(inputPDF, fromPage);
cb.addTemplate(page, 0, 0);
fromPage++;
}
outputStream.flush();
document.close();
outputBytes = outputStream.toByteArray();
outputStream.close();
} catch (Exception e) {
e.printStackTrace();
isException = true;
} finally {
if (document.isOpen())
document.close();
try {
if (outputStream != null)
outputStream.close();
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
if (isException) {
throw new IOException("unable to split document");
}
return outputBytes ;
}
I guess the byte contents are not getting regenerated correctly as in
original case.
Can anyone please throw some light on this?
Regards
Geeta Bapat | Specialist System Designer | Arrk Group
Tel +91 (0)22 2778 4233 | Fax +91 (0)22 2778 4210 |
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