Shubhangi Gojir Nipane created PDFBOX-3565:
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Summary: PDF Compress using PDStream is not working.
Key: PDFBOX-3565
URL: https://issues.apache.org/jira/browse/PDFBOX-3565
Project: PDFBox
Issue Type: Bug
Environment: PDFBox 2.0.2 version
Reporter: Shubhangi Gojir Nipane
Priority: Blocker
We are trying compress PDF using PDFBox 2.0.2 version.
As mentioned in PDFBox 2.0.2 migration guide we are using PDSream object with
COSName.FLATE_DECODE which should compress the pdf.
1)
File toCompress = new File("toCompress.pdf");
File compressedOutputFile = new File("compressedFile.pdf");
try {
PDDocument doc = new PDDocument();
InputStream in = new FileInputStream(toCompress);
OutputStream out = new FileOutputStream(compressedOutputFile);
PDPage page = new PDPage();
doc.addPage(page);
PDStream stream = new PDStream(doc, in, COSName.FLATE_DECODE);
doc.save(out);
doc.close();
} catch (Exception e) {
}
above code snippet gives us blank compressed file with size 0.
2) We try to load pdf stream data on document and then compress it .
File toCompress = new File("toCompress.pdf");
File compressedOutputFile = new File("compressedFile.pdf");
try {
PDDocument doc = new PDDocument();
doc.load(toCompress)
InputStream in = new FileInputStream(toCompress);
OutputStream out = new FileOutputStream(compressedOutputFile);
PDPage page = new PDPage();
doc.addPage(page);
PDStream stream = new PDStream(doc, in, COSName.FLATE_DECODE);
doc.save(out);
doc.close();
} catch (Exception e) {
}
here we get new compressed file which is having bigger size than original one.
So in short for compression using PdfBox 2.0.,2 version is not working.
Please guide us how to do compress PdfBox 2.0.,2 version.
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