[schnautza]

schnautza - The snipping tool is embedded the annotation directly in the PDF. I did not test this with a PDF with 1000+ pages. It's possible the PDF library I'm using is either not handling writing out to a file that large very well, or there is some issue in my code with it taking a considerable amount of time. I'm not sure I even have a PDF that large, but I'll run some more tests with the largest PDFs I can find. As mentioned by others in the thread, you have to enable editing of embedded annotations if you want to move or modify the snippets, as they become part of the PDF itself. 

Thanks,
Now that I think about it, the large books I have are also protected pdfs, so it's possible this is unrelated to size and more related to the pdfs themselves not being editable? Let me send you a link of one of these books.