[PDFBOX-4915] "Page tree root must be a dictionary" on PDDocument.load

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.19
• Fix Version/s: 2.0.21, 3.0.0 PDFBox
• Component/s: Parsing
• Assignee: Andreas Lehmkühler
• Reporter: Gauthier Roebroeck
• Created: 14/Jul/20 12:23
• Updated: 22/Jun/22 19:18
• Resolved: 16/Jul/20 06:01

Description

Hi,

i have a PDF file that throws the following exception:

java.io.IOException: Page tree root must be a dictionaryjava.io.IOException: Page tree root must be a dictionary at org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:198) ~[pdfbox-2.0.19.jar:2.0.19] at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:226) ~[pdfbox-2.0.19.jar:2.0.19] at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1222) ~[pdfbox-2.0.19.jar:2.0.19] at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1122) ~[pdfbox-2.0.19.jar:2.0.19]

This happens when loading the document from an InputStream.

The document can be opened properly using Preview on Mac.

 

I have checked the PDF structure (even though i don't know it very well), from what i can see it could be because the /Pages is not the first element under the /Root.