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https://issues.apache.org/jira/browse/PDFBOX-5096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17279425#comment-17279425
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Tilman Hausherr edited comment on PDFBOX-5096 at 2/5/21, 7:31 AM:
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I need the password.
{noformat}
org.apache.pdfbox.pdmodel.encryption.InvalidPasswordException: Cannot decrypt
PDF, the password is incorrect
org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.prepareForDecryption(StandardSecurityHandler.java:240)
org.apache.pdfbox.pdfparser.COSParser.prepareDecryption(COSParser.java:2919)
org.apache.pdfbox.pdfparser.COSParser.retrieveTrailer(COSParser.java:286)
org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:173)
org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:226)
org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1099)
org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1082)
org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1023)
{noformat}
was (Author: tilman):
I need the password.
> 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
> Priority: Major
> Attachments: function.txt, test_e_file.pdf
>
>
> 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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