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PdfSharpCore

PdfSharpCore is a .NET library for processing PDF file. You create PDF pages using drawing routines known from GDI+. Almost anything that can be done with GDI+ will also work with PdfSharpCore. Keep in mind it does no longer depend on GDI+, as it was ported to make use of ImageSharp. Only basic text layout is supported by PdfSharpCore, and page breaks are not created automatically. The same drawing routines can be used for screen, PDF, or meta files.

Features

  • Creates PDF documents on the fly from any .NET language
  • Easy to understand object model to compose documents
  • One source code for drawing on a PDF page as well as in a window or on the printer
  • Modify, merge, and split existing PDF files
  • Images with transparency (color mask, monochrome mask, alpha mask)
  • Newly designed from scratch and written entirely in C#
  • The graphical classes go well with .NET

First steps

Both PdfSharpCore and MigraDocCore provide a lot of AddXxx functions. Typically these functions return the newly created objects. Once you’ve learned the basic principles it’s quite easy to work with. Intellisense helps a lot then.

We’ll discuss a few lines of the Hello World sample here.

// You’ll first need a PDF document:
PdfDocument document = new PdfDocument();

// And you need a page:
PdfPage page = document.AddPage();

// Drawing is done with an XGraphics object:
XGraphics gfx = XGraphics.FromPdfPage(page);

// Then you'll create a font:
XFont font = new XFont("Verdana", 20, XFontStyle.Bold);

// And you use that font to draw a string:
gfx.DrawString(
    "Hello, World!", font, XBrushes.Black,
    new XRect(0, 0, page.Width, page.Height),
    XStringFormat.Center);

// When drawing is done, write the file:
string filename = "HelloWorld.pdf";
document.Save(filename);