How? Finding PDF errors?

Technical Support Apryse SDK
1

Acrobat 9 Reader opens and displays the document correctly, and
without warnings or errors. But when printing the doucment it does
indeed print it correctly, but after shows an error dialog: An error
exists on this page. Acrobat may not display the page correctly.
Please contact the person who created the PDF document to correct the
problem.

Acrobat Pro 9 Preflight report PDF syntax issues reveals
Invalid content stream state for operator (1 match on 1 page)

We have used PDFNet in several projects now with tremendous success,
but this has us stumped. How can I better isolate the problem so that
we can fix it?

Thanks for any hints tips or tricks.

2

Based on your description it seems that the PDF file may be coorupt
(and perhaps there is a bug in Acrobat). You may want to try to use
PDF/A Manager (http://www.pdftron.com/pdfmanager) or PDFACompliacne
class in PDFNet (see PDFATest sample project) to fix this broken file.
In some cases, PDFNet and PDF/A Manager could fix corrupt PDF files
(although this is not always guaranteed). Also, processing file using
PDFNet may give you a better error description than the one you get
using Acrobat.

You could also use CosEdit (http://www.pdftron.com/cosedit) to inspect
the PDF file and to narrow down on the possible source of the error.