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Editorial Team
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Asked: 2026-05-12T16:36:11+00:00

I have around 10 System.Drawing.Bitmap elements, which I want to dump to PDF. When

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I have around 10 System.Drawing.Bitmap elements, which I want to dump to PDF. When combining them to a single bitmap, and then writing this to PNG, this takes me about 150 ms.

Now I want to create a PDF out of my bitmaps (4 pages), but with PDFSharp this takes >2.5 seconds. Is there any library that is (way) faster at doing this?

NB. I draw the images on the surface in PDFSharp like:

 XGraphics gfx = XGraphics.FromPdfPage(page1);
 gfx.DrawImage(XImage.FromGdiPlusImage(/*bitmap*/));

edit Don’t care about paid/free

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  1. Editorial Team

    Try ITextSharp. Very easy to use and learn.

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