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PM >Install-Package IronPdf

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        • Razor to PDF (Blazor Server)
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        • CSHTML to PDF (MVC Core)
        • CSHTML to PDF (MVC Framework)
        • CSHTML to PDF (Headlessly)
      • Web Accessibility
        • TLS Website & System Logins
        • Cookies
        • HTTP Request Header
        • Proxy Configuration
        • Linearize PDFs
      • Tailored PDF Conversion
        • Rendering Options
        • Set Custom Margins
        • Grayscale
      • Refine PDF Layout
        • Add a Table of Contents
        • Page Breaks
        • Fit to Paper & Zoom
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      • Enhance PDF Design
        • Add & Edit Annotations
        • Stamp Text & Images
        • Custom Watermarks
        • Backgrounds & Foregrounds
        • Draw Text & Bitmap
        • Draw Line & Rectangle
        • Rotate Text and Pages
        • Transform PDF Pages
    • Organize PDFs
      • Edit PDF Structure
        • Add, Copy & Delete PDF Pages
        • Merge or Split PDFs
        • Split Multipage PDF
      • Supplementary Organization
        • Add & Remove Attachments
        • Outlines & Bookmarks
    • Sign and Secure PDFs
      • Ensure Authenticity
        • Signing PDFs
        • Signing PDFs with HSM
        • Set & Edit Metadata
        • Edit & Sign Revision History
      • PDF Form Management
        • Create PDF Forms
        • Fill & Edit PDF Forms
      • Document Safety
        • Sanitize PDF
        • Set PDF Passwords and Permissions
    • Others
      • Support Web Assets
        • Debug HTML with Chrome
        • CSS (Screen & Print)
        • Images (jpg, png, svg, gif, etc)
        • JavaScript (Custom Render Delays)
        • Use WaitFor to Delay PDF Render
        • Fonts (Web & Icon)
        • Use SVG Graphics
        • Manage Fonts
        • Support UTF-8 and International Languages
        • Base URLs & Asset Encoding
        • Render WebGL Sites
        • Chrome PDF Rendering Engine
      • Performance and Compression
        • PDF Compression
        • Async & Multithreading
        • Custom Logging
        • Flatten PDFs
      • PDF Viewing and Printing
        • Viewing PDFs in MAUI
        • Print to a Physical Printer
  • Troubleshooting
    • Contacting Technical Support
      • How to Make an Engineering Support Request for IronPDF
      • Getting the Best Support for IronPDF
    • Deployment
      • Visual C++ Redistributable for Visual Studio
      • AWS Lambda / Amazon Linux 2
      • Segmentation Fault on AWS Lambda
      • IronCefSubprocess
      • Debugging Azure Functions Project on Local Machine
      • Windows Nano Server / Servercore in .Net6 do not support System.Drawing
      • IronPDF Runtimes Folder
      • Adding IronPDF to a software program installer
      • Red Hat Enterprise Linux (RHEL) support
    • Common Questions
      • Bootstrap / Flex / CSS
      • Azure Plans and Tiers
      • Initial render is slow
      • Font Kerning
      • Windows Server Support
      • What version of IronPDF should I use?
      • IronPDF Package Size
      • Fonts
      • Quick IronPDF Troubleshooting
      • IronPDF Performance Assistance
      • Azure Log Files
      • AWS Log Files
      • Render Delay & Timeout
      • Large Output Files Using ImageToPDF
      • Memory Leak in IronPDF
      • Log4j
      • Convert PDF to Base64
      • IronPDF - Security CVE
      • IronPDF 'using' Declaration
      • IronPDF - _blank hyperlinks in a PDF open in same browser tab
      • PDF File Versions
      • IronPdf.Slim
      • IronPdf.Linux
      • IronPdf.Native.UpdatedChrome
    • Troubleshooting Guides
      • Apply a license key in IronPDF
      • Pixel Perfect HTML Formatting
      • Azure Blob Storage
      • Blazor Server / WebAssembly (WASM)
      • Digital Signatures
      • Headers/Footers and Page Breaks
      • International Languages and CMJK
      • IronPdf and IIS
      • Kerberos
      • Broken Font on AWS Lambda
      • MetaData Visibility
      • Print From Network Printer
      • Rasterize to Image using MemoryStream
      • Render view to string
      • System.Drawing.Common Alternatives (.NET 7 & Non-Windows)
      • Table Headers
      • Use ReadyToRun Compilation
      • IronPdf.Slim v2025.5.6 Deployment Exception
      • ClickOnce Version Incompatibility
    • Exception Messages
      • Access to the path 'Global-IronSoftwareDeploymentGlobal' is denied
      • 502 Bad Gateway
      • Error while establishing a connection to the licensing server
      • Error while deploying Chrome dependencies
      • Error while deploying Pdfium dependencies
      • Error while opening document from bytes: 'bad allocation'
      • Failed to deploy NuGet package
      • GPU process isn't usable
      • Invalid CefExecuteProcess return code of 0
      • IronPDF can not open / parse a specific PDF file
      • IronPDF Native Exception
      • IronPdfAssemblyVersionMismatchException
      • Network service crashed, restarting service
      • No function was found with the name SetLogEvent with error code (127)
      • Registry is not supported on this platform
      • Timeout while rendering PDF
      • Unhandled case for AdaptiveRenderEngine
      • Setting License Key in Web.config
      • Unable to Connect to Licensing Server
      • IronPDF LinxARM Cannot Allocate Memory
  • Product Updates
    • Changelog
    • Milestones
    • Milestone: Chrome Rendering
    • Milestone: PDFium DOM
    • Milestone: Compatibility
    • Milestone: Stability & Performance
    • Milestone: PDF/A
    • Milestone: PDF/A-3 & ZUGFeRD
  • Video Tutorials
  • API Reference

IronPDF Documentation

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Quickstart

Everything you need to get IronPDF running: setup guides, deployment, and platform configs.

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Installation

How to install and get started with the IronPDF C# PDF Library.

  • Native vs Remote Engine
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  • Deploying on Docker
  • Using License Keys
See all Installation

Explore Docs

Tutorials

Complete tutorial to guides you to generate, convert, secure, and edit PDFs in C#.

  • HTML to PDF
  • Creating PDFs
  • Editing PDFs
  • Sign and Secure PDFs
See all Tutorials

How-Tos

Feature focused PDF guides for custom layouts, watermarks, images, and customisation options.

  • Docx to PDF
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See all How-tos

Troubleshooting

Fix common PDF issues on rendering, deployment, and integration with solutions that work.

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API Reference

In-depth API reference and practical examples of every method, class, and property you'll need.

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Product Updates

Changelog

IronPDF changelog with features, upgrades, enhancements, and bug fixes. We ship updates often and regularly.

Explore changelog V2025.12.2

Milestones

Some features are larger and more important than others. We've shipped some major ones.

  • Chrome Rendering
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  • Compatibility
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Explore Milestones

Watch and learn

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C# NuGet Library for PDF
Install with NuGet
Version: 2026.3
Install-Package IronPdf
nuget.org/packages/IronPdf/
  1. In Solution Explorer, right-click References, Manage NuGet Packages
  2. Select Browse and search "IronPdf"
  3. Select the package and install
C# PDF DLL
Download DLL
Version: 2026.3
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", }; // var for form 1b var trialLicenseHbsptOptions_form_1b = Object.assign({}, trialLicenseHbsptOptions_form_1a); trialLicenseHbsptOptions_form_1b.formId = "8c54dcae-960c-4452-b83c-06affb378052"; trialLicenseHbsptOptions_form_1b.target = "#trial-license-after-download .place_holder--form_1b"; // var for form 2 var trialLicenseHbsptOptions_form_2 = { region: "na1", portalId: "22630553", formId: "febf5e33-1edd-45f9-b9b0-6ead75fb1b9a", locale: "en", cssClass: "trialFormTwo", target: "#trial-license-after-download .place_holder--form_2", inlineMessage: "
", onFormSubmitted: function ($form, data) { // setCookie("stopFlag", "1", 1); setLocalStorageIfTrialSubmitted(); // Trigger HubSpot goal trigger_goal('second_trial_form_submitted'); $(".hubspot-form__form-wrapper").css("display", "none"); $("#trial-license-after-download .hubspot-form__thank_you").css("padding-top", "60px").show(); // Specific to modal #trial-license-after-download $("#trial-license-after-download .hubspot-form__thank_you section.formright_submitted").css("display", "block"); $("#trial-license-after-download .hubspot-form__thank_you").css("display", "block"); $("#trial-license-after-download .trial-license__action-title").css("display", "none"); $("#trial-license-after-download .trial-license__action-features-single, #trial-license .trial-license__action-features-single").css("display", "none"); // Specific to modal #trial-license $("#trial-license .trial-license__action-title").css("display", "none"); }, }; var selector = document.querySelector("#hubspot-form__form__trial-license-after-download"); const modalSelector = document.querySelector("#trial-license-after-download"); modalSelector?.addEventListener("shown.bs.modal", function() { embedCustomHubspotForm(selector, trialLicenseHbsptOptions_form_1a); embedCustomHubspotForm(selector, trialLicenseHbsptOptions_form_1b); embedCustomHubspotForm(selector, trialLicenseHbsptOptions_form_2); }, { once: true }); });
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