How to underline or strike text

GemBox.Pdf
1

Hello,
I want to create a pdf document in which I want to insert a text and that it can be underlined or crossed out, I found in the documentation the classes PdfTextDecoration and PdfTextMarkupAnnotation which seem to perform these operations but I can’t use them and I can’t find an example of use.
Could you help me please?
Thank you !

2

Hi Florian,

Try this:

using var document = new PdfDocument();
var page = document.Pages.Add();

using var formattedText = new PdfFormattedText();

formattedText.Underline = new PdfTextDecoration(
    style: PdfTextDecorationStyle.Single,
    wordsOnly: false,
    thickness: 4,
    color: PdfColors.Red,
    opacity: 1,
    dashPattern: PdfLineDashPatterns.Solid);

formattedText.Append("Hello World!");

page.Content.DrawText(formattedText, new PdfPoint(100, 700));

document.Save("output.pdf");

I hope this helps, let me know if you need anything else.

Regards,
Mario

3

Thanks for your answer,
I don’t have .Underline and PdfTextDecoration in my assembly.
I am using the Nuget package GemBox.Pdf 17.0.1474 in a .net 8.0 class library project
and I have the usings :
using GemBox.Pdf;
using GemBox.Pdf.Content;

4

Support for underline and strikethrough text decorations was added in version 17.0.1528:

See the release notes:

5

Thank you verry much.
Have a good day.