Apache pdfbox 声称 PDF 文档已加密(但事实并非如此！)- 修复了吗? [英] Apache pdfbox claims that PDF documents are encrypted (but they are not!) - fix?

问题描述

在我的程序中，我正在下载杂项.PDF 文档，最后我想使用 Apache pdfbox (v1.8.8) 将它们合并为一个组合文档.出于某种奇怪的原因，PDFMergerUtility 未能声称文件已加密 - 显然它们不是！我可以在 Adob​​e Reader 和其他 PDF 查看器中打开它们，没有任何问题，也无需提供任何密码.

In my program I am downloading misc. PDF documents and at the very end I want to merge those into one combined document using Apache pdfbox (v1.8.8). For some strange reason the PDFMergerUtility fails claiming that the files are encryped - which they are obviously not! I can open them in Adobe Reader and other PDF viewers without any issue and without having to provide any password.

Java 异常和堆栈跟踪读取:

The Java exception and stack trace reads:

Feb 28, 2015 6:25:54 PM org.apache.pdfbox.pdfparser.PDFParser parse
INFO: Document is encrypted
Failed to merge all files into downloaded\page merged.pdf: Error: source PDF is encrypted, can't append encrypted PDF documents.
java.io.IOException: Error: source PDF is encrypted, can't append encrypted PDF documents.
    at org.apache.pdfbox.util.PDFMergerUtility.appendDocument(PDFMergerUtility.java:284)
    at org.apache.pdfbox.util.PDFMergerUtility.mergeDocuments(PDFMergerUtility.java:241)
    at org.apache.pdfbox.util.PDFMergerUtility.mergeDocuments(PDFMergerUtility.java:194)
    at mmo.pull_ct.PullCT.mergePDFs(PullCT.java:481)

有人遇到同样的问题和/或知道修复方法或解决方法吗?这是在 Windows 8.1 (x64) 下使用 Java (1.)8.

Anybody having the same issue and/or maybe knows a fix or work-around? This is using Java (1.)8 under Windows 8.1 (x64).

推荐答案

由上面 Tilman Hausherr 和 mkl 的评论回答.文件已加密，但使用的是空密码.尝试让我前进.再次感谢！

Answered by the comments from Tilman Hausherr and mkl above. The Files were encrypted but using an empty password. Trying that got me going. Thanks again!

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