Implementing .NET MAUI PDF Viewer

A comprehensive skill for implementing and customizing the Syncfusion .NET MAUI PDF Viewer (SfPdfViewer) control. The PDF Viewer provides powerful document viewing and management capabilities including navigation, annotations, form filling, text operations, signatures, redaction, and printing with a built-in customizable toolbar.

When to Use This Skill

Use this skill when you need to:

View and navigate PDF documents in .NET MAUI applications
Load PDFs from file, stream, URL, or Base64
Add and manage annotations (ink, shapes, stamps, text markups, sticky notes)
Fill and validate PDF form fields; import/export form data (XFDF, FDF, JSON, XML)
Search and select text within PDF documents
Add electronic signatures (handwritten, image-based, text)
Redact sensitive content permanently
Print PDF documents with quality settings
Customize toolbars, appearance, and localization
Migrate from Xamarin.Forms PDF Viewer to .NET MAUI

Component Overview

SfPdfViewer is a comprehensive PDF viewing and management control for .NET MAUI with these capabilities:

Document Management: Load (file/stream/URL/Base64/picker) with password support, save with flattening, print with quality settings
Annotations: Ink, shapes, stamps, sticky notes, text markups, free text, eraser with full editing support
Forms & Text: All AcroForm types, validation, import/export (XFDF/FDF/JSON/XML), async search, text selection
Signatures & Redaction: Electronic signatures (handwritten/image/text), text/area/page-based redaction
Navigation & UI: Page layouts, zoom, bookmarks, hyperlinks, customizable toolbar (desktop/mobile), localization, RTL, liquid glass effect

Documentation and Navigation Guide

Getting Started & Setup

📄 Read: references/basic-sample.md

Installation, NuGet package, and handler registration (ConfigureSyncfusionCore)
Basic PDF Viewer implementation (XAML & C#), DocumentSource binding
Loading PDFs from different sources and platform-specific setup

Document Operations

📄 Read: references/document-operations.md

Loading PDFs (file picker, URL, Base64, streams) with password support
Saving with modifications and annotation flattening
Printing with quality settings and page range selection

Annotations

📄 Read: references/annotations.md

Adding/removing annotations (AddAnnotation, RemoveAnnotation)
Ink, shapes, stamps, sticky notes, text markups, free text, ink eraser
Annotation properties (color, opacity, bounds, stroke, rotation) and events

Form Fields

📄 Read: references/form-fields.md

Viewing, accessing, and filling all AcroForm field types
Field validation, import/export (XFDF, FDF, JSON, XML), flattening
Form field events and interaction handling

Navigation & Viewing

📄 Read: references/viewing.md

Page navigation (GoToPage, PageNumber), layout modes (Single, Continuous)
Bookmarks, hyperlinks, zoom (ZoomMode, ZoomFactor), FitMode options
Coordinate conversion (PageToClient, ClientToPage)

Text Search

📄 Read: references/text-search.md

Async text search (SearchTextAsync), match navigation (GoToNextMatch, GoToPreviousMatch)
Search highlighting, case-sensitive/whole-word options, custom search UI