Print Pdf problem

[Souvik Das]

Hi,
I am facing problem to print pdfs through java code. I needs the functionality of silent printing so i am using pdfbox. But the problem is the pdfs are not getting printed and my code throws an error java.awt.print.PrinterIOException which is caused by
Caused by: java.util.zip.ZipException: unknown compression method
But i just want to print only one pdf at a time. Later, i have found out that my pdfs are restricted with 40bit Rc4 type security where only printing is allowed. Now i have also got the password with which the pdfs are encrypted. But now i am getting null pointer exception when i want to print the pdf after decryption.
My code is attached below.

  
try{
PDDocument pds = PDDocument.load("C://39577721.pdf");
pds.decrypt(password); 
// password is the password with which the pdf is encrypted
pds.print(); // in this line the error occurs
pds.close();
}catch(){ // All the catch blocks
}
 

  

Please help.
Souvik Das

[Ulf Dittmer]

In which line of code are you getting a NullPointerException?

[Souvik Das]

Hi Mr. Ulf Dittmer,
I am getting the following error log.

java.lang.NullPointerException
at org.pdfbox.pdmodel.PDDocument.print(PDDocument.java:825)
at com.ITGI.Java.PDFBOXCode.createPDF(PDFBOXCode.java:66)// Method
at com.ITGI.Java.PDFBOXCode.main(PDFBOXCode.java:17)
Exception in thread "main"

Thanks & Regards,
Souvik Das