[PDFBOX-2564] be more precise with "Stream not read" error

• Type: Sub-task
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 2.0.0
• Component/s: Preflight
• Assignee: Unassigned
• Reporter: Ralf Hauser
• Created: 12/Dec/14 11:09
• Updated: 03/Nov/20 06:07

Description

Currently, the error says:
"2 : Unknown error, Stream was not read - on page 1"

So while the validation doesn't really need to bother with the "EOL encountered in white run", the pdf/A apparently contains further attributes such "/length" that can no longer be confirmed or denied.
So,
1) the error should explain that.
2) If there is even not only a total length, but a specific length expected for the COSStream, error should mention that among others