Migration Matrix & Performance Gains

Compare developer productivity, execution speeds, and memory footprint when switching to ShreePdf Engine.

Dimension / Metric	Competitor Average	ShreePdf Engine	Developer Gain
Code Verbosity	50 – 120 lines / page	5 – 15 lines / page	80% less boilerplate code
Execution Speed	1,500 – 4,000 ms (Chromium)	5 – 15 ms / page	250x faster PDF rendering
Memory Footprint	400 – 800 MB RAM	~15 MB RAM	Zero cold-start timeouts
Native Dependencies	200MB+ Headless Chrome / WebKit	0 (Pure C# SkiaSharp)	100% Cross-Platform (Docker/Linux)

Migrating from QuestPDF

QuestPDF requires deep lambda nesting and strict layout columns. ShreePdf offers a clean, fluid builder.

QuestPDF (Verbose Lambdas) 32 Lines

Document.Create(container => {
    container.Page(page => {
        page.Size(PageSizes.A4);
        page.Header().Text("Financial Report").Bold();
        page.Content().Table(table => {
            table.ColumnsDefinition(cols => {
                cols.RelativeColumn(3);
                cols.RelativeColumn(1);
            });
            table.Header(h => {
                h.Cell().Text("Department");
                h.Cell().Text("Budget");
            });
            table.Cell().Text("Engineering");
            table.Cell().Text("$120,000");
        });
    });
}).GeneratePdf("report.pdf");

ShreePdf (Clean Fluent DSL) 9 Lines

using ShreePdf.Fluent;

var doc = Document.Create("Financial Report")
    .AddHeading("Financial Report", level: 1)
    .AddTable(table => {
        table.Columns.Add(new TableColumn { Header = "Department", WidthRatio = 3 });
        table.Columns.Add(new TableColumn { Header = "Budget", WidthRatio = 1 });
        table.Rows.Add(new TableRow { Cells = { "Engineering", "$120,000" } });
    });

doc.Save("report.pdf");

Migrating from iText 7 / iTextSharp

Replace low-level PDF canvas stream painting and AGPL licensing traps with modern C# design systems.

iText 7 (Imperative Streams) AGPL Copyleft

using iText.Kernel.Pdf;
using iText.Layout;
using iText.Layout.Element;

using var writer = new PdfWriter("statement.pdf");
using var pdf = new PdfDocument(writer);
using var document = new Document(pdf);

document.Add(new Paragraph("Account Statement").SetBold());
Table table = new Table(new float[] { 200, 100 });
table.AddHeaderCell("Transaction");
table.AddHeaderCell("Amount");
table.AddCell("Server Hosting");
table.AddCell("-$450.00");
document.Add(table);

ShreePdf (Auto Budgeted Layout) Permissive / Commercial

using ShreePdf.Fluent;

var doc = Document.Create("Account Statement")
    .AddHeading("Account Statement", level: 1)
    .AddTable(table => {
        table.Columns.Add(new TableColumn { Header = "Transaction", WidthRatio = 2 });
        table.Columns.Add(new TableColumn { Header = "Amount", WidthRatio = 1 });
        table.Rows.Add(new TableRow { Cells = { "Server Hosting", "-$450.00" } });
    });

doc.Save("statement.pdf");

Migrating from PuppeteerSharp / IronPDF

Eliminate 200MB+ Headless Chrome binaries, high memory consumption, and cold-start latency.

PuppeteerSharp (Heavy Chromium) 1,500ms Latency

// Requires 200MB+ Chromium binary download
await new BrowserFetcher().DownloadAsync();
using var browser = await Puppeteer.LaunchAsync(
    new LaunchOptions { Headless = true }
);
using var page = await browser.NewPageAsync();
await page.SetContentAsync("Executive Summary");
await page.PdfAsync("report.pdf", new PdfOptions());

ShreePdf (0 Chromium, Native Vector) 5ms Latency

using ShreePdf.Fluent; // Pure C# vector generation instantly in 5ms string html = "

Executive Summary

Narrative...

"; var doc = Document.FromMarkdown(html); doc.Save("report.pdf");

Master-Detail Group Continuation & `(continued)` Suffixes

Automatically repeat master metadata header rows across page breaks and append `(continued)` suffixes.

Master-Detail Group Builder v1.14.0 Engine

var doc = Document.Create("Legal Case Report")
    .AddMasterDetailGroup(group => {
        // 1. Master Metadata Header Row (repeats on continuation pages)
        group.HeaderTable.Columns.Add(new TableColumn { Header = "Title" });
        group.HeaderTable.Columns.Add(new TableColumn { Header = "Ref ID" });
        group.HeaderTable.Rows.Add(new TableRow { Cells = { "Afonso NO v ENS Inc", "JOL 29215" } });

        // 2. Narrative Body with automatic "(continued)" Label Suffixing
        group.BodyTitle = "Legal Summary";
        group.ContinuationSuffix = " (continued)";
        group.NarrativeText = "Multi-page case judgment summary text...";
        group.RepeatHeaderOnContinuation = true;

        // 3. Conclusion Block (anchored to render ONCE at narrative conclusion)
        group.ConclusionBlock = new TextElement("Comment by reviewer on 2026/08/15: Risk accepted.");
    });

Universal Markdown & HTML Ingestion

Convert LLM markdown response streams or Razor HTML templates into PDF documents.

AI Stream & HTML Parser Built-in Ingestion

string markdownText = """
    # Executive Quarterly Overview
    - **Revenue**: $1.2M
    - **Growth**: +14.2% YoY
    """;

var doc = Document.FromMarkdown(markdownText);
byte[] pdfBytes = doc.GenerateBytes();

Visual Charts, Barcodes, QR & KPI Cards

Add vector charts, Code 128 barcodes, QR codes, and dashboard stat cards out of the box.

Data Visualization Subsystem Vector Canvas

var doc = Document.Create("Analytics Report")
    .AddStatCards(row => {
        row.Cards.Add(new StatCard { Label = "Total Revenue", Value = "$42,850", Delta = "+12.4%", DeltaPositive = true });
        row.Cards.Add(new StatCard { Label = "Active Users", Value = "1,240", Delta = "-2.1%", DeltaPositive = false });
    })
    .AddQrCode("https://shreepdf.io/verify/94316708", size: 90f)
    .AddBarcode("123456789012", showText: true);

AI / RAG Dual-Stream AST Embedder

Embed loss-free JSON AST metadata directly inside the PDF XMP stream for zero-loss LLM retrieval.

Zero-Loss RAG Indexer XMP Dual-Stream

var doc = Document.Create("RAG Indexed Contract");
doc.IsRagMetadataEnabled = true; // Embeds structured JSON AST payload in XMP stream

doc.AddHeading("Services Agreement", level: 1)
   .AddText("This Agreement is made on 2026-08-15 between Party A and Party B.");

doc.Save("IndexedContract.pdf");