using ObviousPDF;

// Create a new PDF document
var doc = new PdfDocument();

// Add a US Letter page (612×792 points)
var page = doc.AddPage();

// Add text at 1 inch from left, 10 inches from bottom
page.AddText("Hello, World!", 72, 720);

// Save to disk
doc.Save("hello.pdf");

using ObviousPDF;
using ObviousPDF.Accessibility;

var doc = new PdfDocument();
doc.Info.Title = "Accessible Document";
doc.Language = "en-US";
doc.DisplayDocTitle = true;
doc.PdfUaConformance = PdfUaConformanceLevel.PdfUA1;

var root = doc.EnableTaggedPdf();

// Build structure tree
var sect = root.AddChild(StructureType.Sect);
var h1 = sect.AddChild(StructureType.H1);
var pIntro = sect.AddChild(StructureType.P);
var list = sect.AddChild(StructureType.L);
var li1 = list.AddChild(StructureType.LI);
var li1Lbl = li1.AddChild(StructureType.Lbl);
var li1Body = li1.AddChild(StructureType.LBody);

var page = doc.AddPage();

// Decorative header — ARTIFACT (not structural)
page.BeginArtifact(PdfArtifactType.Layout);
page.FillRectangle(0, 760, 612, 32,
    new PdfDrawOptions { FillColor = PdfColor.FromRgb(0.15, 0.3, 0.6) });
page.EndArtifact();

page.AddTaggedText(h1, "Welcome to ObviousPDF", 72, 720,
    new PdfTextOptions { Font = StandardFont.HelveticaBold, FontSize = 22 });
page.AddTaggedText(pIntro,
    "This document is fully accessible.", 72, 690);
page.AddTaggedText(li1Lbl, "•", 82, 660);
page.AddTaggedText(li1Body,
    "Tagged PDF for screen readers", 95, 660);

// Page number — ARTIFACT
page.AddArtifactText("Page 1", 285, 30,
    PdfArtifactType.Pagination);

doc.Save("accessible.pdf");

// Build accessible table structure
var table = root.AddChild(StructureType.Table);
var caption = table.AddCaption();

// Header row with column scope
var thead = table.AddTableHead();
var hrow = thead.AddTableRow();
var thName = hrow.AddHeaderCell(
    PdfTableScope.Column, id: "name");
var thAge = hrow.AddHeaderCell(
    PdfTableScope.Column, id: "age");

// Data rows reference header IDs
var tbody = table.AddTableBody();
var row = tbody.AddTableRow();
var tdName = row.AddDataCell("name");
var tdAge = row.AddDataCell("age");

// Render tagged content
page.AddTaggedText(thName, "Name", 72, 700);
page.AddTaggedText(thAge, "Age", 200, 700);
page.AddTaggedText(tdName, "Alice", 72, 680);
page.AddTaggedText(tdAge, "30", 200, 680);

var page = doc.AddPage();

// Filled rectangle with styled border
page.DrawAndFillRectangle(100, 600, 200, 100,
    new PdfDrawOptions {
        FillColor = new PdfColor(0.9, 0.9, 1),
        StrokeColor = new PdfColor(0, 0, 0.5),
        LineWidth = 1.5
    });

// Bézier curve path
page.BeginPath(new PdfDrawOptions {
        FillColor = new PdfColor(0.3, 0.3, 0.8)
    })
    .MoveTo(300, 440)
    .CurveTo(350, 520, 440, 480, 420, 440)
    .ClosePath()
    .FillAndStroke();

// Transparent overlapping circles
page.SaveGraphicsState();
page.SetAlpha(fillAlpha: 0.5);
page.FillCircle(140, 350, 40,
    new PdfDrawOptions {
        FillColor = new PdfColor(1, 0, 0) });
page.FillCircle(170, 350, 40,
    new PdfDrawOptions {
        FillColor = new PdfColor(0, 0, 1) });
page.RestoreGraphicsState();