Syncfusion dotnet pdf

Skill syncfusion/document-sdk-skills/skills/syncfusion-dotnet-pdf

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Create, read, edit, secure, sign, and convert PDF documents (.pdf) using Syncfusion PDF Library for .NET. Use this skill for PDF processing and document automation when the user asks to generate PDF files, modify PDF content, add security or signatures, extract text or images, merge or split PDFs, or perform PDF/A conversion using C# code or CSX execution.

SKILL.md

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PDF Document Processing

Overview

Create, read, write, and convert PDF files using the Syncfusion PDF Library. This skill supports two operational modes — generating C# code for the user's project or executing tasks directly through a CSX script.

Key Capabilities

Create & Edit: PDF files from scratch, text, images (various formats), tables, shapes, paragraphs, headings, styles, lists, hyperlinks, bookmarks, headers/footers, watermarks, template management, metadata editing
Forms & Interactive Elements: Create, fill, and flatten forms (AcroForms and XFA), bookmarks, annotations, attachments, buttons, and content controls
Advanced Features: Comments, layers (add, remove, flatten), PDF portfolios, JavaScript execution, 3D model embedding and interaction, rich media content (audio/video), optical character recognition (Tesseract engine), text redaction, image redaction, digital signatures and validation
Conversion: XPS to PDF, PDF to PDF/A conformance, extract text and images from PDF documents
Security: Password encryption/decryption, advanced encryption standards, document protection with editable ranges, macro management, digital signing capabilities
Barcodes & Standards: 1D barcodes, 2D barcodes, ZUGFeRD invoice support, PDF/A-1B, PDF/A-1A, PDF/A-2B, PDF/A-2A, PDF/A-2U, PDF/A-3B, PDF/A-3A, PDF/A-3U, PDF/A-4, PDF/A-4E, PDF/A-4F, PDF/X1-A conformances, Accessible PDF/Tagged PDF (PDF/UA) with Section 508 compliance
Additional Operations: Merge and split PDF files, open and modify existing PDF files, compress PDF files, corrupted PDF detection.

Quick Start Examples

Example 1: Generate Code (Mode 1)

User: "Show me the C# code to create a PDF with a title, a heading, and a paragraph." Result: C# code snippet displayed (no files created)

Example 2: Execute Task (Mode 2)

User: "Generate a meeting agenda document and save it to output/agenda.pdf." Result: Physical file created at specified path

Two Modes — Choose Based on User Intent

Mode 1: Generate C# Code for the User's Project (default)

Trigger keywords: "code", "snippet", "how to write", "Program.cs", "show me", "sample", "example code", "generate code for".

Workflow:

Build the C# code using snippets from references/*.md files and replace placeholders with actual content
Add the code directly into the user's project files (e.g., Program.cs)
Do not create or run any .csx script

Note: Use Syncfusion.Drawing namespace for this code for cross-platform projects, not System.Drawing. This ensures compatibility across Windows, macOS, and Linux.

Note: If Syncfusion.Pdf.Net.Core package is suggested, then must be use the Syncfusion.Drawing namespace for graphics operations instead of System.Drawing to ensure cross-platform compatibility. The Syncfusion.Pdf.Net.Core package is designed to work with the Syncfusion.Drawing namespace, which provides a consistent API for drawing operations across different platforms. Using System.Drawing may lead to compatibility issues, especially on non-Windows platforms, as it relies on GDI+ which is not fully supported outside of Windows. Therefore, always use Syncfusion.Drawing when working with PDF graphics in a cross-platform context.

Note: If RectangleF, PointF, SizeF, or Color types are needed, use the ones from Syncfusion.Drawing namespace for cross-platform compatibility, not the ones from System.Drawing. This ensures that the code will work correctly on Windows, macOS, and Linux without relying on GDI+.

Mode 2: Execute via CSX Script (does not touch project files)

Trigger keywords: "create a pdf document", "make a document", "generate a document", "open", "edit", "modify", "change" a .pdf file, "without modifying my project", "run a csx script", or when the user provides a file path (e.g., output/report.pdf).