PDF Split by Chapter, Missing Chapter

Hi all,

I’m splitting a PDF into chapters, but the “Introduction” chapter isn’t appearing in the output.

Is this likely due to the way the PDF is structured (e.g., missing bookmarks, metadata, or unusual formatting), or is it a limitation of the splitting method/tool?

Would you recommend troubleshooting this further, or is it generally more reliable to manually split the document in this case?

Appreciate any insights!

What does the Table of Contents look like?

ToC shows the introduction chapter thats missing.

Which version of DEVONthink do you use? Could you send us the document via PM? Thanks in advance.