[iText-questions] Conversion from TIFF to PDF

thulasi ram

2009-11-19 18:47:51 UTC

Will Rayer,

Can you try following code its work.
Inside the For loop u can get all the time new RandomAccessFileOrArray its
works.

// Loop through all the pages in the TIFF file, convert each to
PDF.
for (int c = 0; c < comps; ++c) {
try {
* ** RandomAccessFileOrArray raNew = null;*
* raNew = new RandomAccessFileOrArray(fis);*
Image img = TiffImage.getTiffImage(raNew , c
+ 1);
if (img != null) {
if (img.getScaledWidth() > 500 ||
img.getScaledHeight() > 700) {
img.scaleToFit(500,
700);
}
img.setAbsolutePosition(20, 20);
//document.add(new Paragraph(tiff_file +
" - page " + (c + 1)));
cb.addImage(img);
document.newPage();
++pages;
}
}
catch (Throwable e) {
throw new PRRuntimeException("Exception " +
tiff_file + " page " + (c + 1) + " " + e.getMessage());
}
}

// Close the TIFF file and the PDF file.
ra.close();
document.close();
}

On Thu, Nov 19, 2009 at 1:32 PM, Rayer, William (RBS Coutts, Jersey) <

Post by Rayer, William (RBS Coutts, Jersey)
Dear iText
We have been using your conversion library as part of the deployment of
a Java web-based system (Pega BPM). During the conversion of some TIFF
files to PDF, we have found that if a TIFF file contains the same page
repeated twice or more, the conversion process fails. Is it possible
that TIFF files containing repeated pages use some kind of compression
that isn't handled by iText? The error message we get is not very
specific, eg "page NN NULL". By examining the input TIFF we can tell
that Page NN is identical as page NN-1. We are using the following
String sError = "";
String tiff_file = InputTiffFile;
String pdf_file = tiff_file.substring(0, tiff_file.lastIndexOf('.') + 1)
+ "pdf";
Document document = new Document();
try {
// Create PDF file writer.
FileOutputStream fos = new FileOutputStream(pdf_file);
PdfWriter writer = PdfWriter.getInstance(document, fos);
document.open();
int pages = 0;
PdfContentByte cb = writer.getDirectContent();
// Open the TIFF file and find the number of pages.
RandomAccessFileOrArray ra = null;
int comps = 0;
FileInputStream fis = null;
try {
File tiffFile = new File(tiff_file);
fis = new FileInputStream(tiffFile);
}
catch (Throwable e) {
throw new PRRuntimeException("Tiff file " + tiff_file +
" could not be opened, it does not exist or
lacks permissions. "
+ e.getMessage());
}
try {
ra = new RandomAccessFileOrArray(fis);
comps = TiffImage.getNumberOfPages(ra);
}
catch (Throwable e) {
throw new PRRuntimeException("Tiff file " + tiff_file
+ " could not be opened as a Random Access File. "
+ e.getMessage());
}
// Loop through all the pages in the TIFF file, convert each to
PDF.
for (int c = 0; c < comps; ++c) {
try {
Image img = TiffImage.getTiffImage(ra, c
+ 1);
if (img != null) {
if (img.getScaledWidth() > 500 ||
img.getScaledHeight() > 700) {
img.scaleToFit(500,
700);
}
img.setAbsolutePosition(20, 20);
//document.add(new Paragraph(tiff_file +
" - page " + (c + 1)));
cb.addImage(img);
document.newPage();
++pages;
}
}
catch (Throwable e) {
throw new PRRuntimeException("Exception " +
tiff_file + " page " + (c + 1) + " " + e.getMessage());
}
}
// Close the TIFF file and the PDF file.
ra.close();
document.close();
}
catch (Throwable e) {
// throw new PRRuntimeException("Error converting Tiff file
"+tiff_file+" to PDF "+ e.getMessage());
sError = "Error converting Tiff file " + tiff_file + " to PDF "
+ e.getMessage() + ".";
}
// If anything went wrong, return "*" + the error description.
// If we converted OK, return the pdf_file name.
return ((sError.length() > 0) ? "*" + sError : pdf_file);
We are using version "itext-2.0.8.jar" of iText, size 1,213,150 bytes.
Is this a known issue and is there a work-around?
Will Rayer
Senior Systems Analyst
RBS Coutts TFS,
PO Box 6, 23-25 Broad Street,
St Helier, Jersey JE4 8ND
Direct line: + 44 1534 282563
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