Roman created PDFBOX-4286:
-----------------------------
Summary: Encrypted and certified PDF file could not be opened
Key: PDFBOX-4286
URL: https://issues.apache.org/jira/browse/PDFBOX-4286
Project: PDFBox
Issue Type: Bug
Reporter: Roman
Attachments: Demo1_encrypted_.pdf
When trying to open attached PDF using
{code}
PDDocument.load(..)
{code}
get error:
{code}
org.apache.pdfbox.pdmodel.encryption.InvalidPasswordException: Cannot decrypt
PDF, the password is incorrect
at
org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.prepareForDecryption(StandardSecurityHandler.java:256)
at
org.apache.pdfbox.pdfparser.COSParser.prepareDecryption(COSParser.java:2873)
at
org.apache.pdfbox.pdfparser.COSParser.retrieveTrailer(COSParser.java:284)
at
org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:171)
at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:220)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1012)
{code}
The same happening when opening using PDF debugger.
In the same time, this PDF opening fine (without a password needed) by Adobe
Reader.
Also, when this doc is opened in Rups, the following error shown: "Unknown
encryption type R = 6"
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