Q: How do I embed thumbnails in PDF?
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A: You can use PDFNet SDK (www.pdftron.com/pdfnet) to convert PDF
pages to images (or thumbnails) and these images can be embedded in
PDF.
For an example of how to render PDF pages, please take a look at
PDFDraw sample project (http://www.pdftron.com/pdfnet/
samplecode.html#PDFDraw).
Once you have a PDF thumbnail (pdfdraw.GetBitmap() ->
System.Drawing.Bitmap) you can embed it in the document with
pdftron.PDF.Image.Create() method.
To associate this PDF image with a page use the following line:
page.GetSDFObj().Put("Thumb", image.GetSDFObj());