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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (Jira)" <ji...@apache.org> on 2020/04/08 15:33:00 UTC
[jira] [Comment Edited] (PDFBOX-4808) Issue while merging documents
[ https://issues.apache.org/jira/browse/PDFBOX-4808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17078388#comment-17078388 ]
Tilman Hausherr edited comment on PDFBOX-4808 at 4/8/20, 3:32 PM:
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This means you're not having strong encryption on your JVM
https://stackoverflow.com/questions/6481627/java-security-illegal-key-size-or-default-parameters
Install it, or install a newer java (where strong encryption is there by default). Also update your PDFBox version, 2.0.9 is several years old. You're not profiting from the improvements made since then.
was (Author: tilman):
This means you're not having strong encryption on your JVM
https://stackoverflow.com/questions/6481627/java-security-illegal-key-size-or-default-parameters
Install it, or install a newer java. Also update your PDFBox version, 2.0.9 is several years old. You're not profiting from the improvements made since then.
> Issue while merging documents
> -----------------------------
>
> Key: PDFBOX-4808
> URL: https://issues.apache.org/jira/browse/PDFBOX-4808
> Project: PDFBox
> Issue Type: Bug
> Components: Crypto
> Affects Versions: 2.0.9
> Reporter: Sunil
> Priority: Major
>
>
> I am trying PDFBox for merging multiple PDF documents. Code is below. I am facing an issue. For a few PDF files i am getting "java.io.IOException: java.security.InvalidKeyException: Illegal key size". I am not sure what is going on. Could someone please help me ?
> Could you please also let me know if PDFBox has restriction on PDFstandards/types etc ?
>
> {{ PDFMergerUtility PDFutility = new PDFMergerUtility();ByteArrayOutputStream mergedPdf = new ByteArrayOutputStream();PDFutility.addSources(pdfDocs);PDFutility.setDestinationStream(mergedPdf);PDFutility.mergeDocuments();}}
> {{}}
> Caused by: java.io.IOException: java.security.InvalidKeyException: Illegal key size at org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.computeEncryptedKeyRev56(StandardSecurityHandler.java:779) at org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.computeEncryptedKey(StandardSecurityHandler.java:681) at org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.prepareForDecryption(StandardSecurityHandler.java:256) at org.apache.pdfbox.pdfparser.COSParser.prepareDecryption(COSParser.java:2929) at org.apache.pdfbox.pdfparser.COSParser.retrieveTrailer(COSParser.java:286) at org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:173) at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:226) at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1222) at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1140) at org.apache.pdfbox.multipdf.PDFMergerUtility.legacyMergeDocuments(PDFMergerUtility.java:455) at org.apache.pdfbox.multipdf.PDFMergerUtility.mergeDocuments(PDFMergerUtility.java:346) at org.apache.pdfbox.multipdf.PDFMergerUtility.mergeDocuments(PDFMergerUtility.java:330){{}}
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