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MauiNativePdfView

(★ 98)

A high-performance, cross-platform PDF viewer for .NET MAUI

파일 탐색기

최종 버전 다운로드 (.zip)

- - publish.yml
- icon.png
- icon.svg
- - App.xaml
  - App.xaml.cs
  - AppShell.xaml
  - AppShell.xaml.cs
  - MauiPdfViewerSample.csproj
  - MauiProgram.cs
  - PdfTestPage.xaml
  - PdfTestPage.xaml.cs
  - SampleDocument.cs
- - MauiAppBuilderExtensions.cs
  - MauiNativePdfView.csproj
  - PdfView.cs
  - XmlnsDefinitions.cs
- - MauiNativePdfView.Android.Binding.csproj
.gitignore
Directory.Build.props
LICENSE
MauiNativePdfView.sln
README.md

# 설치 가이드

1. 코드 내려받기

git clone https://github.com/TheEightBot/MauiNativePdfView

깃허브에서 프로젝트 코드 전체를 내 컴퓨터로 내려받습니다.

cd MauiNativePdfView

방금 내려받은 프로젝트 폴더 안으로 이동합니다.

2. .NET

보통 추천

사전 준비물

Git GitHub에서 프로젝트 코드를 내려받으려면 필요합니다.
.NET SDK dotnet 명령어를 쓰기 위한 SDK입니다.

dotnet add package MauiNativePdfView

이 명령어를 터미널에 그대로 입력해 실행하세요.

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"

이 명령어를 터미널에 그대로 입력해 실행하세요.

dotnet restore

프로젝트에 필요한 패키지를 내려받습니다.

dotnet build

이 명령어를 터미널에 그대로 입력해 실행하세요.

✅ dotnet run 실행 후 터미널에 나타나는 안내 메시지나 주소를 확인하세요.

이 레포의 README에 적힌 실제 명령어를 그대로 가져왔습니다.

// repository documentation

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<div align="center">

# MauiNativePdfView

<img src="images/icon.svg" width="200" />

### A high-performance, cross-platform PDF viewer for .NET MAUI

[![NuGet](https://img.shields.io/nuget/v/Eightbot.MauiNativePdfView.svg)](https://www.nuget.org/packages/EightBot.MauiNativePdfView/)
[![NuGet Downloads](https://img.shields.io/nuget/dt/Eightbot.MauiNativePdfView.svg)](https://www.nuget.org/packages/EightBot.MauiNativePdfView/)

[![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://raw.githubusercontent.com/TheEightBot/MauiNativePdfView/main/LICENSE)
[![.NET](https://img.shields.io/badge/.NET-10.0-purple.svg)](https://dotnet.microsoft.com/download)
[![MAUI](https://img.shields.io/badge/MAUI-Latest-green.svg)](https://github.com/dotnet/maui)

**Native PDF rendering** • **Zero web dependencies** • **Full feature parity**

[Features](#-features) • [Installation](#-installation) • [Quick Start](#-quick-start) • [Documentation](#-documentation) • [Examples](#-examples)

</div>

---

## 🎯 Overview

MauiNativePdfView brings native PDF viewing capabilities to your .NET MAUI applications by wrapping platform-native controls. Unlike WebView-based solutions, this library provides true native performance with full access to platform-specific PDF features.

### Why MauiNativePdfView?

- **🚀 Native Performance** - Uses PDFKit (iOS) and AhmerPdfium (Android) for optimal speed
- **💪 Feature Complete** - Comprehensive API with zoom, navigation, annotations, and events
- **🎨 Consistent API** - Write once, works on both iOS and Android
- **📦 Zero Web Dependencies** - No WebView, no JavaScript, pure native rendering
- **🔧 Highly Configurable** - Extensive properties for customization
- **📱 Production Ready** - Battle-tested with full annotation support

## ✨ Features

### Core Functionality

- ✅ **Multiple PDF Sources** - Load from files, URLs, streams, byte arrays, or embedded assets
- ✅ **Password Protection** - Full support for encrypted PDFs
- ✅ **Zoom & Gestures** - Pinch-to-zoom, double-tap zoom, with configurable min/max levels
- ✅ **Page Navigation** - Swipe between pages, programmatic navigation, page events
- ✅ **Link Interception** - Intercept and handle link taps before navigation (both platforms)
- ✅ **Link Handling** - Automatic detection and handling of internal/external links
- ✅ **Display Modes** - Single page or continuous scrolling
- ✅ **Scroll Orientation** - Vertical or horizontal page layout

### Advanced Features

- ✅ **Annotation Rendering** - Toggle PDF annotations on/off
- ✅ **Annotation Events** - Tap detection with annotation details (iOS)
- ✅ **Tap Gesture Control** - Enable/disable custom tap interception
- ✅ **Quality Control** - Antialiasing and rendering quality settings
- ✅ **Background Color** - Customizable viewer background
- ✅ **Page Spacing** - Adjustable spacing between pages
- ✅ **Event System** - Comprehensive events for document lifecycle

### Events

- `DocumentLoaded` - Fires when PDF is loaded with page count and metadata
- `PageChanged` - Current page and total page count updates
- `LinkTapped` - Intercept link taps before navigation (set `e.Handled = true` to prevent)
- `Tapped` - General tap events with page coordinates (requires `EnableTapGestures = true`)
- `AnnotationTapped` - Annotation tap with type, content, and bounds (iOS)
- `Rendered` - Initial rendering complete
- `Error` - Error handling with detailed messages

## 📦 Installation

### NuGet Package Manager

```bash
dotnet add package MauiNativePdfView
```

### Package Manager Console

```powershell
Install-Package MauiNativePdfView
```

### Requirements

- **.NET 10.0** or later
- **iOS 12.2+** (PDFKit)
- **Android 7.0+** (API 24+)

> **Using .NET 9?** Version 2.0.0 targets .NET 10 only, because .NET 9 reached end of
> support in May 2026. Stay on the [1.0.x line](https://www.nuget.org/packages/Eightbot.MauiNativePdfView/1.0.8)
> until you can move up.

## ⚠️ Migrating to 2.0

Three behavioural changes. The first two only affect iOS.

**1. `Zoom` is now a multiple of the fit scale on iOS.**
It previously passed straight through to PDFKit's `ScaleFactor`, which is relative to the
PDF's intrinsic size, while Android already treated it as a multiple of the fitted size.
`Zoom="2.0"` therefore rendered at roughly 3× the fitted page on iOS but 2× on Android.
Both platforms now mean "twice the fitted page". If you were passing absolute scale factors
on iOS, divide by your fit scale.

**2. An unset `BackgroundColor` is now transparent.**
iOS previously showed PDFKit's opaque grey backdrop and Android its own opaque default,
which hid anything sharing the viewer's grid cell. Both are now transparent by default.
Set `BackgroundColor` explicitly if you want the old appearance.

**3. .NET 9 is no longer supported.** See the note above.

Two fixes worth knowing about, since code may have been working around them:

- **`MinZoom`/`MaxZoom` now actually apply.** They never reached the native controls, so
  zoom bounds were whatever each platform defaulted to. The `OnRendered` +
  `MinScaleFactor` workaround circulated for iOS is no longer needed.
- **`BackgroundColor` can now be cleared.** Assigning `null` previously left the last
  colour in place.

## 🚀 Quick Start

### 1. Add Handler

```csharp
public static class MauiProgram
{
    public static MauiApp CreateMauiApp()
    {
        var builder = MauiApp.CreateBuilder();
        builder
            .UseMauiApp<App>()
            .UseMauiNativePdfView() // <--- ADD THIS LINE
            .ConfigureFonts(fonts =>
            {
                fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular");
            });

return builder.Build();
    }
}
```

### 2. Add Namespace

**Option A: Custom Schema (Recommended)**

```xml
xmlns:pdf="http://eightbot.com/maui/pdfview"
```

**Option B: CLR Namespace**

```xml
xmlns:pdf="clr-namespace:MauiNativePdfView;assembly=MauiNativePdfView"
```

### 3. Basic XAML

```xml

<pdf:PdfView Source="https://example.com/document.pdf" />

<pdf:PdfView x:Name="pdfViewer"
             EnableZoom="True"
             EnableSwipe="True"
             DocumentLoaded="OnDocumentLoaded"
             PageChanged="OnPageChanged" />
```

### String to PdfSource Conversion

The library supports automatic string conversion in XAML:

```xml

<pdf:PdfView Source="https://example.com/document.pdf" />

<pdf:PdfView Source="sample.pdf" />

<pdf:PdfView Source="asset://documents/guide.pdf" />

<pdf:PdfView Source="file:///path/to/document.pdf" />
```

### 4. Load a PDF (Code-Behind)

```csharp
// From file
pdfViewer.Source = PdfSource.FromFile("/path/to/document.pdf");

// From URL
pdfViewer.Source = PdfSource.FromUri(new Uri("https://example.com/doc.pdf"));

// From embedded asset
pdfViewer.Source = PdfSource.FromAsset("sample.pdf");

// From stream
pdfViewer.Source = PdfSource.FromStream(myStream);

// From byte array
pdfViewer.Source = PdfSource.FromBytes(pdfBytes);

// With password
pdfViewer.Source = PdfSource.FromFile("/path/to/encrypted.pdf", "password");
```

### 5. Handle Events

```csharp
private void OnDocumentLoaded(object sender, DocumentLoadedEventArgs e)
{
    Console.WriteLine($"Loaded: {e.PageCount} pages");
    Console.WriteLine($"Title: {e.Title}");
    Console.WriteLine($"Author: {e.Author}");
}

private void OnPageChanged(object sender, PageChangedEventArgs e)
{
    Console.WriteLine($"Page {e.PageIndex + 1} of {e.PageCount}");
}
```

## 📖 Documentation

### PdfView Properties

| Property                    | Type                   | Default                | Description                    |
| --------------------------- | ---------------------- | ---------------------- | ------------------------------ |
| `Source`                    | `PdfSource`            | `null`                 | PDF source to display          |
| `EnableZoom`                | `bool`                 | `true`                 | Enable pinch-to-zoom           |
| `EnableSwipe`               | `bool`                 | `true`                 | Enable swipe gestures          |
| `EnableTapGestures`         | `bool`                 | `false`                | Enable tap interception        |
| `EnableLinkNavigation`      | `bool`                 | `true`                 | Enable clickable links         |
| `Zoom`                      | `float`                | `1.0f`                 | Current zoom, × the fit scale  |
| `MinZoom`                   | `float`                | `1.0f`                 | Minimum zoom, × the fit scale  |
| `MaxZoom`                   | `float`                | `3.0f`                 | Maximum zoom, × the fit scale  |
| `PageSpacing`               | `int`                  | `10`                   | Spacing between pages (pixels) |
| `FitPolicy`                 | `FitPolicy`            | `Width`                | How pages fit on screen        |
| `DisplayMode`               | `PdfDisplayMode`       | `SinglePageContinuous` | Page display mode              |
| `ScrollOrientation`         | `PdfScrollOrientation` | `Vertical`             | Scroll direction               |
| `DefaultPage`               | `int`                  | `0`                    | Initial page (0-based)         |
| `EnableAntialiasing`        | `bool`                 | `true`                 | Antialiasing (Android only)    |
| `UseBestQuality`            | `bool`                 | `true`                 | Best quality rendering         |
| `BackgroundColor`           | `Color`                | `null`                 | Viewer background color        |
| `EnableAnnotationRendering` | `bool`                 | `true`                 | Show PDF annotations           |
| `CurrentPage`               | `int`                  | `0`                    | Current page (readonly)        |
| `PageCount`                 | `int`                  | `0`                    | Total pages (readonly)         |

#### A note on zoom values

`Zoom`, `MinZoom`, and `MaxZoom` are **multiples of the fit scale** — the scale at which the
document fits the view under the current `FitPolicy` — not percentages of the PDF's intrinsic
size. So `1.0` is the fitted document, `2.0` is twice that size, and `MinZoom="1.0"` means
"never zoom out past fitted". Because the values are relative, they stay meaningful when the
view resizes or the device rotates.

### PdfSource Types

The `PdfSource` class supports automatic string conversion via implicit operators and TypeConverter, making it easy to use in both XAML and code.

**Factory Methods (Code-Behind):**

```csharp
// File path
var source = PdfSource.FromFile(string filePath, string? password = null);

// URI/URL
var source = PdfSource.FromUri(Uri uri, string? password = null);

// Stream
var source = PdfSource.FromStream(Stream stream, string? password = null);

// Byte array
var source = PdfSource.FromBytes(byte[] data, string? password = null);

// Asset/Resource
var source = PdfSource.FromAsset(string assetName, string? password = null);
```

**Implicit Conversion (Convenient):**

```csharp
// String to PdfSource - auto-detects type
PdfSource source = "https://example.com/doc.pdf";  // → UriPdfSource
PdfSource source = "sample.pdf";                    // → AssetPdfSource
PdfSource source = "/path/to/file.pdf";             // → FilePdfSource

// Uri to PdfSource
PdfSource source = new Uri("https://example.com/doc.pdf");
```

**String Conversion Rules:**
| Pattern | Result |
|---------|--------|
| `http://...` or `https://...` | `UriPdfSource` |
| `asset://filename.pdf` | `AssetPdfSource` |
| `file:///path/to/file.pdf` | `FilePdfSource` |
| `filename.pdf` (no path separators) | `AssetPdfSource` |
| `/path/to/file.pdf` (rooted path) | `FilePdfSource` |

### Enums

```csharp
// How pages fit on screen
public enum FitPolicy
{
    Width,    // Fit to width
    Height,   // Fit to height
    Both      // Fit both dimensions
}

// Page display mode
public enum PdfDisplayMode
{
    SinglePage,           // One page at a time
    SinglePageContinuous  // Continuous scrolling
}

// Scroll direction
public enum PdfScrollOrientation
{
    Vertical,    // Scroll up/down
    Horizontal   // Scroll left/right
}
```

### Methods

```csharp
// Navigate to specific page (0-based)
pdfViewer.GoToPage(int pageIndex);

// Reload current document
pdfViewer.Reload();
```

## 💡 Examples

### Complete PDF Viewer

```xml
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:pdf="clr-namespace:MauiNativePdfView;assembly=MauiNativePdfView"
             x:Class="MyApp.PdfPage">

<Grid RowDefinitions="Auto,*,Auto">

<HorizontalStackLayout Grid.Row="0" Padding="10" Spacing="10">
            <Button Text="◀" Clicked="OnPreviousPage" />
            <Button Text="▶" Clicked="OnNextPage" />
            <Button Text="Zoom In" Clicked="OnZoomIn" />
            <Button Text="Zoom Out" Clicked="OnZoomOut" />
        </HorizontalStackLayout>

<pdf:PdfView x:Name="pdfViewer"
                     Grid.Row="1"
                     EnableZoom="True"
                     EnableSwipe="True"
                     EnableLinkNavigation="True"
                     EnableAnnotationRendering="True"
                     PageSpacing="10"
                     BackgroundColor="#F5F5F5"
                     DocumentLoaded="OnDocumentLoaded"
                     PageChanged="OnPageChanged"
                     LinkTapped="OnLinkTapped"
                     Error="OnError" />

<Label x:Name="statusLabel"
               Grid.Row="2"
               Padding="10"
               HorizontalOptions="Center" />
    </Grid>

</ContentPage>
```

```csharp
public partial class PdfPage : ContentPage
{
    public PdfPage()
    {
        InitializeComponent();
        pdfViewer.Source = PdfSource.FromAsset("sample.pdf");
    }

private void OnDocumentLoaded(object sender, DocumentLoadedEventArgs e)
    {
        statusLabel.Text = $"Loaded: {e.PageCount} pages - {e.Title}";
    }

private void OnPageChanged(object sender, PageChangedEventArgs e)
    {
        statusLabel.Text = $"Page {e.PageIndex + 1} of {e.PageCount}";
    }

private void OnLinkTapped(object sender, LinkTappedEventArgs e)
    {
        if (e.Uri != null)
        {
            // Intercept and handle external link yourself
            DisplayAlert("Link Tapped", $"Opening: {e.Uri}", "OK");
            Launcher.OpenAsync(e.Uri);

// Prevent default navigation
            e.Handled = true;
        }
        else if (e.DestinationPage.HasValue)
        {
            // Internal link - allow default navigation
            // Or set e.Handled = true to prevent it
        }
    }

private void OnError(object sender, PdfErrorEventArgs e)
    {
        DisplayAlert("Error", e.Message, "OK");
    }

private void OnPreviousPage(object sender, EventArgs e)
    {
        if (pdfViewer.CurrentPage > 0)
            pdfViewer.GoToPage(pdfViewer.CurrentPage - 1);
    }

private void OnNextPage(object sender, EventArgs e)
    {
        if (pdfViewer.CurrentPage < pdfViewer.PageCount - 1)
            pdfViewer.GoToPage(pdfViewer.CurrentPage + 1);
    }

private void OnZoomIn(object sender, EventArgs e)
    {
        pdfViewer.Zoom = Math.Min(pdfViewer.Zoom + 0.5f, pdfViewer.MaxZoom);
    }

private void OnZoomOut(object sender, EventArgs e)
    {
        pdfViewer.Zoom = Math.Max(pdfViewer.Zoom - 0.5f, pdfViewer.MinZoom);
    }
}
```

### MVVM Pattern

```csharp
public class PdfViewModel : INotifyPropertyChanged
{
    private PdfSource _pdfSource;
    private int _currentPage;
    private int _pageCount;

public PdfSource PdfSource
    {
        get => _pdfSource;
        set => SetProperty(ref _pdfSource, value);
    }

public int CurrentPage
    {
        get => _currentPage;
        set => SetProperty(ref _currentPage, value);
    }

public int PageCount
    {
        get => _pageCount;
        set => SetProperty(ref _pageCount, value);
    }

public Command LoadPdfCommand { get; }
    public Command<int> GoToPageCommand { get; }

public PdfViewModel()
    {
        LoadPdfCommand = new Command(LoadPdf);
        GoToPageCommand = new Command<int>(GoToPage);
    }

private void LoadPdf()
    {
        PdfSource = PdfSource.FromAsset("document.pdf");
    }

private void GoToPage(int pageIndex)
    {
        // Page navigation handled by binding
    }
}
```

```xml
<pdf:PdfView Source="{Binding PdfSource}"
             CurrentPage="{Binding CurrentPage}"
             PageCount="{Binding PageCount}" />
```

### Password-Protected PDFs

```csharp
try
{
    pdfViewer.Source = PdfSource.FromFile("encrypted.pdf", "mypassword");
}
catch (Exception ex)
{
    // Handle incorrect password
    await DisplayAlert("Error", "Invalid password", "OK");
}
```

### Link Interception

Both iOS and Android support intercepting link taps before navigation occurs. This allows you to handle links yourself or prevent navigation entirely.

```csharp
pdfViewer.LinkTapped += (sender, e) =>
{
    Console.WriteLine($"Link tapped: {e.Uri}");

if (e.Uri?.Contains("example.com") == true)
    {
        // Custom handling for specific domain
        DisplayAlert("Info", "This link is not allowed", "OK");
        e.Handled = true; // Prevent navigation
    }
    else if (e.Uri != null)
    {
        // Log analytics before opening
        Analytics.TrackEvent("PDF_Link_Clicked", new Dictionary<string, string>
        {
            { "Uri", e.Uri }
        });

// Allow default navigation (or handle manually)
        e.Handled = false;
    }
};
```

**Platform Implementation:**

- **iOS**: Uses `PdfViewDelegate.WillClickOnLink` to intercept before navigation
- **Android**: Uses `LinkHandler.HandleLinkEvent` to intercept before navigation

### Tap Gesture Handling

Enable custom tap detection with page coordinates:

```csharp
pdfViewer.EnableTapGestures = true;

pdfViewer.Tapped += (sender, e) =>
{
    Console.WriteLine($"Tapped page {e.PageIndex} at ({e.X}, {e.Y})");

// Add your custom tap handling logic
    // For example: show a custom menu, add annotations, etc.
};
```

**Note**: When `EnableTapGestures = false` (default), the PDF viewer uses native platform tap handling which is optimized for link detection.

### Annotation Handling (iOS)

```csharp
private void OnAnnotationTapped(object sender, AnnotationTappedEventArgs e)
{
    Console.WriteLine($"Annotation on page {e.PageIndex + 1}");
    Console.WriteLine($"Type: {e.AnnotationType}");
    Console.WriteLine($"Contents: {e.Contents}");
    Console.WriteLine($"Bounds: {e.Bounds}");

// Prevent default behavior if needed
    e.Handled = true;
}
```

**Note**: Annotation tap detection is only supported on iOS with PDFKit. Android's AhmerPdfium library does not expose annotation tap events.

## 🎯 Common Scenarios

### Restrict External Navigation

```csharp
pdfViewer.LinkTapped += (sender, e) =>
{
    if (e.Uri != null && e.Uri.StartsWith("http"))
    {
        DisplayAlert("Restricted", "External links are not allowed", "OK");
        e.Handled = true; // Block navigation
    }
};
```

### Track Link Clicks for Analytics

```csharp
pdfViewer.LinkTapped += (sender, e) =>
{
    // Log the link click
    Analytics.TrackEvent("PDF_Link_Clicked", new Dictionary<string, string>
    {
        { "Document", pdfViewer.Source?.ToString() ?? "Unknown" },
        { "Link", e.Uri ?? $"Page {e.DestinationPage}" },
        { "CurrentPage", pdfViewer.CurrentPage.ToString() }
    });

// Allow normal navigation
    e.Handled = false;
};
```

### Custom Link Handling with Confirmation

```csharp
pdfViewer.LinkTapped += async (sender, e) =>
{
    if (e.Uri != null)
    {
        var result = await DisplayAlert(
            "Open Link?",
            $"Do you want to open {e.Uri}?",
            "Yes",
            "No"
        );

if (result)
        {
            await Launcher.OpenAsync(e.Uri);
        }

e.Handled = true; // Prevent default navigation
    }
};
```

### Deep Link Handling

```csharp
pdfViewer.LinkTapped += async (sender, e) =>
{
    if (e.Uri?.StartsWith("myapp://") == true)
    {
        // Handle custom URL scheme
        await Shell.Current.GoToAsync(e.Uri.Replace("myapp://", ""));
        e.Handled = true;
    }
};
```

### Disable All Link Navigation

```csharp
// Simple approach
pdfViewer.EnableLinkNavigation = false;

// Or intercept all links
pdfViewer.LinkTapped += (sender, e) =>
{
    e.Handled = true; // Block all navigation
};
```

## 🏗️ Architecture

```
┌─────────────────────────────────────┐
│     .NET MAUI Application           │
└─────────────┬───────────────────────┘
              │
┌─────────────▼───────────────────────┐
│      MauiNativePdfView              │
│  ┌────────────────────────────────┐ │
│  │   PdfView (MAUI Control)       │ │
│  │   - Bindable Properties        │ │
│  │   - Event Handlers             │ │
│  │   - Platform Handlers          │ │
│  └────────────────────────────────┘ │
└─────────────┬───────────────────────┘
              │
      ┌───────┴────────┐
      │                │
┌─────▼──────┐   ┌────▼───────┐
│  Android   │   │    iOS     │
│  Handler   │   │  Handler   │
└─────┬──────┘   └────┬───────┘
      │               │
┌─────▼──────┐   ┌────▼───────┐
│AhmerPdfium │   │  PDFKit    │
│ (Native)   │   │ (Native)   │
└────────────┘   └────────────┘
```

## 🔧 Platform Details

### iOS (PDFKit)

- **Framework**: Apple's native PDFKit
- **Version**: iOS 12.2+
- **Features**: Full annotation support, smooth rendering, link interception via `PdfViewDelegate`
- **Link Handling**: Native `WillClickOnLink` delegate method
- **Size**: 0 KB (system framework)

### Android (AhmerPdfium)

- **Library**: [AhmerPdfium](https://github.com/AhmerAfzal1/AhmerPdfium) by Ahmer Afzal
- **Base**: Enhanced fork of [AndroidPdfViewer](https://github.com/barteksc/AndroidPdfViewer)
- **Version**: 2.0.1 (viewer) + 1.9.2 (pdfium)
- **Features**: 16KB page size support, reliable rendering, link interception via `LinkHandler`
- **Link Handling**: Custom `ILinkHandler` implementation
- **Size**: ~16MB (native libraries for all architectures)
- **Note**: Annotation tap events not supported by library

## 📊 Performance

- **Memory Efficient**: Native rendering engines handle memory management
- **Fast Loading**: Platform-optimized PDF parsing
- **Smooth Scrolling**: Hardware-accelerated rendering
- **Large Files**: Tested with 100+ page documents

## 🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.

### Building from Source

```bash
git clone https://github.com/TheEightBot/MauiNativePdfView.git
cd MauiNativePdfView
dotnet restore
dotnet build
```

### Running Tests

```bash
cd samples/MauiPdfViewerSample
dotnet build
```

## ❓ Troubleshooting

### Links Not Working on iOS

If links are not responding on iOS, ensure:

1. `EnableLinkNavigation = true` (default)
2. The PDF actually contains link annotations
3. You're not setting `e.Handled = true` for all links in the `LinkTapped` event

### Tapped Event Not Firing

The `Tapped` event requires:

```csharp
pdfViewer.EnableTapGestures = true;
```

**Note**: When `EnableTapGestures = true`, it may interfere with native link handling on some platforms. For link detection only, keep it `false` (default) and use the `LinkTapped` event.

### LinkTapped Event Handler Not Called

Ensure you're subscribing to the event:

```csharp
pdfViewer.LinkTapped += OnLinkTapped;
```

Or in XAML:

```xml
<pdf:PdfView LinkTapped="OnLinkTapped" />
```

### Android Annotation Events

Annotation tap events (`AnnotationTapped`) are **only supported on iOS**. The Android AhmerPdfium library does not expose annotation-level tap detection. Use the `Tapped` event as an alternative for Android.

## 📄 License

This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

### Third-Party Licenses

- **AhmerPdfium**: Apache License 2.0
- **PDFKit**: Apple System Framework

## 🙏 Acknowledgments

- **[Ahmer Afzal](https://github.com/AhmerAfzal1)** - AhmerPdfium library maintainer
- **[barteksc](https://github.com/barteksc)** - Original AndroidPdfViewer
- **Apple** - PDFKit framework
- **.NET MAUI Team** - Excellent framework

## 💬 Support

- 🐛 [Issue Tracker](https://github.com/TheEightBot/MauiNativePdfView/issues)

## ⭐ Show Your Support

If you find this library helpful, please give it a star! ⭐

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