pdfsharp – Tarik Billa

How to export PDF page as an image using PDFsharp .NET library?

January 9, 2024 by Tarik

The answer can be found in the PDFsharp FAQ list: http://www.pdfsharp.net/wiki/PDFsharpFAQ.ashx#Can_PDFsharp_show_PDF_files_Print_PDF_files_Create_images_from_PDF_files_3 PDFsharp creates PDF files, but it cannot render them. The call Bitmap b = new Bitmap((int) pdfp.Width.Point, (int) pdfp.Height.Point, xgfx.Graphics); does not initialize any bits of the bitmap and does not copy anything from the Graphics object except for the DPI setting of the … Read more

PDFSharp filling in form fields

December 23, 2023 by Tarik

You also need this if you are attempting to populate PDF form fields, you also need to set the NeedsAppearances element to true. Otherwise the PDF will “hide” the values on the form. Here is the VB code. If objPdfSharpDocument.AcroForm.Elements.ContainsKey(“/NeedAppearances”) = False Then objPdfSharpDocument.AcroForm.Elements.Add(“/NeedAppearances”, New PdfSharp.Pdf.PdfBoolean(True)) Else objPdfSharpDocument.AcroForm.Elements(“/NeedAppearances”) = New PdfSharp.Pdf.PdfBoolean(True) End If

PDFsharp Line Break

September 22, 2023 by Tarik

Have you tried the XTextFormatter class? See here: http://www.pdfsharp.net/wiki/TextLayout-sample.ashx Code snippet: PdfDocument document = new PdfDocument(); PdfPage page = document.AddPage(); XGraphics gfx = XGraphics.FromPdfPage(page); XFont font = new XFont(“Times New Roman”, 10, XFontStyle.Bold); XTextFormatter tf = new XTextFormatter(gfx); XRect rect = new XRect(40, 100, 250, 220); gfx.DrawRectangle(XBrushes.SeaShell, rect); tf.DrawString(text, font, XBrushes.Black, rect, XStringFormats.TopLeft);

PDFsharp: Is there a way to generate “Page X of Y” in the header of the page?

September 16, 2023 by Tarik

Make sure to include the using MigraDoc.DocumentObjectModel; statement in your class. Document document = new Document(); Section section = document.AddSection(); Paragraph paragraph = new Paragraph(); paragraph.AddText(“Page “); paragraph.AddPageField(); paragraph.AddText(” of “); paragraph.AddNumPagesField(); section.Headers.Primary.Add(paragraph);

PDFsharp save to MemoryStream

May 15, 2023 by Tarik

If you think there is an issue with PdfDocument.Save, then please report this on the PDFsharp forum (but please be more specific with your error description). Your “solution” looks like a hack to me. “pdfRenderer.Save” calls “PdfDocument.Save” internally. Whatever the problem is – your “solution” still calls the same Save routine. Edit: To get a … Read more

C# Extract text from PDF using PdfSharp

April 2, 2023 by Tarik

Took Sergio’s answer and made some extension methods. I also changed the accumulation of strings into an iterator. public static class PdfSharpExtensions { public static IEnumerable<string> ExtractText(this PdfPage page) { var content = ContentReader.ReadContent(page); var text = content.ExtractText(); return text; } public static IEnumerable<string> ExtractText(this CObject cObject) { if (cObject is COperator) { var cOperator … Read more