Earnie Dyke wrote:
You can use the java.util.jar classes to unzip and zip files.
That was not the question I think.
UNCOMPRESS (DANGEROUS!)
PdfReader reader = new PdfReader("HelloWorld.pdf");
PdfStamper stamper =
new PdfStamper(reader, new
FileOutputStream("HelloWorldUncompressed.pdf"), '1');
Document.compress = false;
int total = reader.getNumberOfPages() + 1;
for (int i = 1; i < total; i++) {
reader.setPageContent(i, reader.getPageContent(i));
}
stamper.close();
This is dangerous because of the line Document.compress = false;
this is a static value, so as soon as you set it to false, all the
documents you are generating in the same JVM will not be compressed.
Notice that I have also set the PDF version to 1.1 (not necessary).
COMPRESSION:
PdfReader reader = new PdfReader("HelloWorldUncompressed.pdf");
PdfStamper stamper =
new PdfStamper(reader, new FileOutputStream("HelloWorldCompressed.pdf"));
stamper.close();
FULL COMPRESSION
PdfReader reader = new PdfReader("HelloWorldCompressed.pdf");
PdfStamper stamper =
new PdfStamper(reader, new
FileOutputStream("HelloWorldFullCompression.pdf"),
PdfWriter.VERSION_1_5);
stamper.setFullCompression();
stamper.close();
Notice that I have set the version number to 1.5, because
full compression didn't exist in previous versions.
br,
Bruno
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