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Posted to dev@pdfbox.apache.org by "Ling Hock Hin, Daniel (Jira)" <ji...@apache.org> on 2021/02/04 09:10:00 UTC

[jira] [Created] (PDFBOX-5096) Is there a way for PDFBox to decrypt encrypted pdf files without providing the password?

Ling Hock Hin, Daniel created PDFBOX-5096:
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             Summary: Is there a way for PDFBox to decrypt encrypted pdf files without providing the password?
                 Key: PDFBOX-5096
                 URL: https://issues.apache.org/jira/browse/PDFBOX-5096
             Project: PDFBox
          Issue Type: Wish
            Reporter: Ling Hock Hin, Daniel


My application needs to remove metadata of pdf files when uploaded. When attempting to  load and remove metadata of encrypted pdf files, I get the logs below.

 

 at java.lang.Thread.run(Thread.java:748) [?:1.8.0_275] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_275]Caused by: java.lang.IllegalStateException: PDF contains an encryption dictionary, please remove it with setAllSecurityToBeRemoved() or set a protection policy with protect() at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1367) ~[pdfbox-2.0.22.jar:2.0.22] at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1319) ~[pdfbox-2.0.22.jar:2.0.22] at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1357) ~[pdfbox-2.0.22.jar:2.0.22]

 

Tried to use the code below but it does not seem to work.

PDDocument document = PDDocument.load(documentBytes);
 if (document.isEncrypted()) {
 document.setAllSecurityToBeRemoved(true);
 }

 

Appreciate your advice.

 



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