Steve Davies created PDFBOX-5639:
------------------------------------
Summary: Password protected PDF opens in GUI apps but PDFbox says
invalid password
Key: PDFBOX-5639
URL: https://issues.apache.org/jira/browse/PDFBOX-5639
Project: PDFBox
Issue Type: Bug
Components: Crypto
Affects Versions: 2.0.29, 3.0.0 PDFBox
Environment: Java 17 on both Linux and Windows
Reporter: Steve Davies
Attachments: incorrect_password.pdf
I am using PDFbox to test whether a password is correct for a protected PDF
before handling it with a different process. This is working for the vast
majority of files I receive but from one particular source PDFbox reports an
invalid password when the files can be opened without complaint in GUI
applications (Adobe Reader et. al.).
These files are created by scanning to PDF on Xerox MFDs and using the MFD's
menus to add a password to the document. As luck would have it I have access to
the same MFDs in my location and my files created using the same method are
correctly read by PDFbox.
The issue can be seen using the command line utilities and the same is seen on
v2.0.29 and v3.0.0-beta1 (I am using the 2.0 series in the application):
{code:java}
❯ java -jar pdfbox-app-2.0.29.jar Decrypt -password JUL2023rfi
invalid_password.pdf
Exception in thread "main"
org.apache.pdfbox.pdmodel.encryption.InvalidPasswordException: Cannot decrypt
PDF, the password is incorrect
at
org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.prepareForDecryption(StandardSecurityHandler.java:284)
at
org.apache.pdfbox.pdfparser.COSParser.prepareDecryption(COSParser.java:2992)
at
org.apache.pdfbox.pdfparser.COSParser.retrieveTrailer(COSParser.java:285)
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:1110)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1093)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1070)
at org.apache.pdfbox.tools.Decrypt.decrypt(Decrypt.java:143)
at org.apache.pdfbox.tools.Decrypt.main(Decrypt.java:65)
at org.apache.pdfbox.tools.PDFBox.main(PDFBox.java:52){code}
{code:java}
❯ java -jar pdfbox-app-3.0.0-beta1.jar Decrypt -password JUL2023rfi -i
invalid_password.pdf
Error decrypting document [InvalidPasswordException]: Cannot decrypt PDF, the
password is incorrect{code}
A sample file is attached, the password is JUL2023rfi
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
