Home/ Questions/Q 637513
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-13T20:37:54+00:00

I would like to generate (and then print or save) big XPS documents (>400

  • 0

I would like to generate (and then print or save) big XPS documents (>400 pages) from my WPF application. We have some large amount of in-memory data that needs to be written to XPS.

How can this be done without getting an OutOfMemoryException? Is there a way I can write the document in chunks? How is this usually done? Should I not be using XPS for large files in the first place?

The root cause of the OutOfMemoryException seems to be the creation of the huge FlowDocument. I am creating the full FlowDocument and then sending it to the XPS document writer. Is this the wrong approach?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    I can confirm that XPS does not throw out-of-memory on long documents. Both in theory (because operations on XPS are page-based, it doesn’t try to load whole document in memory), and in practice (I use XPS-based reporting, and seen run-away error messages add up to many thousands of pages).

    Could it be that the problem is in a single particularly large page? A huge image, for example? Large page with high DPI resolution? If single object in document is too big to be allocated at once, it will lead to out-of-memory exception.

    • 0