ComPDFKit
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Windows

Rapidly Integrate PDF SDKs into Windows Apps

ComPDFKit's comprehensive and cross-platform PDF SDKs/APIs can be quickly integrated into any Windows application to provide PDF functionality such as viewing, editing, annotation, etc.
C# ASP.NET ASP.NET Core VB.NET C/C++ Python Java
Free Trial Guides

Standard or Custom UI in WPF or UWP Apps

Standard or Custom UI in WPF or UWP Apps
Quick and Simple Integration

Example

Basic Example
Create Annotation
Requirements:
Visual Studio 2017 or higher
C# WPF
C# UWP
VB.NET
1
                string filePath = "Your PDF File Path";
2
                // Initialize a CPDFDocument object with the path to the PDF file
3
                CPDFDocument document = CPDFDocument.InitWithFilePath(filePath);
4
5
                // Initialize a CPDFViewer object and display it
6
                CPDFViewer pdfViewer = new CPDFViewer();
7
                pdfViewer.InitDocument(document);
8
                pdfViewer.Load();
Changelog Guides API Reference
WPF/UWP PDF SDK
Compatibility
•
WPF SDK supports Windows 11/ 10/ 8/ 8.1/ 7
•
UWP SDK works with Windows 11/ 10
•
Compatible with desktop computers and Microsoft Surface devices (x86/x64), allowing to submit apps to the Microsoft Store.
Windows 11
Windows 10
Windows 8/8.1
Windows 7

Windows PDF Viewer Gets a Brand New Upgrade

Faster Rendering and Response
Quickly render and load PDF documents with a large number of pages, increasing user efficiency and productivity.
Display Changes in Real Time
Add, delete, or modify the content of PDFs and display the changes in real time.
Control by Hierarchical
Separate content, annotations, and images into different layers, so as to change the order of them optionally.

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MAUI:
Web UI with Native Speed

Utilize the out-of-the-box Web UI with native speed to build apps for Android, iOS, Windows, and macOS, and experience the optimal blend of speed and stability with ComPDFKit for MAUI.

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MAUI: Web UI with Native Speed

.NET Core:
Library for Server

ComPDFKit's library for .NET Core supports all versions of Windows (32-bit and 64-bit), Mac OS, and Linux (32-bit and 64-bit), empowering users to preview, annotate, and edit PDF files.

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.NET Core: Library for Server

Why ComPDFKit for Windows?

Plentiful Features
Process PDF files with previews, annotations, signatures, document comparisons, form filling, content editing, encryption and decryption, etc.
Explore All Features
High Compatibility
Frameworks: .NET Framework, .NET Core, WPF, UWP, MAUl, WinForms, MFC, and WinUI.

Programming Languages: C#, C/C++, Python, Java, ASP.NET / ASP.NET Core, and VB.NET.
Guides
Technical Advantages
Our products possess independent Intellectual Property and our professional R&D team assists you with comprehensive technical documentation and rapid response.
Technical Support

Explore PDF Features

Viewing
Bring a smooth and comfortable reading experience to your users.
See All Features
Viewer
Fluidly view and render PDFs accurately and fast.
Search & Selection
Find any content in PDFs and annotations you add easily.
Form Viewing
Clearly view the data and text in the PDF forms.
Markup
Mark up PDF documents with multiple tools and edit them freely.
See All Features
Annotations
Efficiently add highlights, ink, shapes, text fields, and more to PDFs.
Form Filling
Create and save fillable and static PDF forms without effort.
Electronic Signatures
Enable your users to sign documents by drawn, scanned, or written signatures.
Editor
Organize and edit PDF pages seamlessly across different platforms.
See All Features
Document Editor
Copy, delete, insert, rotate, flip or replace PDF pages as needed.
Content Editor
Edit PDF text and images directly like in Word.
Conversion
High-fidelity convert PDF to/from Office files and other formats.
See All Features
Convert from PDF
Transform PDFs from multiple file formats with 99% accuracy.
Convert to PDF
Quickly convert Word, Excel, Image, etc. to PDF documents.
Advanced Features
Process PDF documents with much more advanced features.
See All Features
Compare Documents
Compare content by overlaying or side-by-side to clearly show differences.
Security
Secure PDFs with permissions and watermarks, and encrypt files.
Redaction
Protect your files by removing sensitive, confidential, or any other content.
Measurement
Accurately measure any line, perimeter, area, and arc.
Digital Signatures
Provide a unique digital ID to verify the legitimacy of PDF files.
Viewing
Bring a smooth and comfortable reading experience to your users.
See All Features
Viewer
Fluidly view and render PDFs accurately and fast.
Search & Selection
Find any content in PDFs and annotations you add easily.
Form Viewing
Clearly view the data and text in the PDF forms.
Markup
Mark up PDF documents with multiple tools and edit them freely.
See All Features
Annotations
Efficiently add highlights, ink, shapes, text fields, and more to PDFs.
Form Filling
Create and save fillable and static PDF forms without effort.
Electronic Signatures
Enable your users to sign documents by drawn, scanned, or written signatures.
Editor
Organize and edit PDF pages seamlessly across different platforms.
See All Features
Document Editor
Copy, delete, insert, rotate, flip or replace PDF pages as needed.
Content Editor
Edit PDF text and images directly like in Word.
Conversion
High-fidelity convert PDF to/from Office files and other formats.
See All Features
Convert from PDF
Transform PDFs from multiple file formats with 99% accuracy.
Convert to PDF
Quickly convert Word, Excel, Image, etc. to PDF documents.
Advanced Features
Process PDF documents with much more advanced features.
See All Features
Compare Documents
Compare content by overlaying or side-by-side to clearly show differences.
Security
Secure PDFs with permissions and watermarks, and encrypt files.
Redaction
Protect your files by removing sensitive, confidential, or any other content.
Measurement
Accurately measure any line, perimeter, area, and arc.
Digital Signatures
Provide a unique digital ID to verify the legitimacy of PDF files.
I have been working on a small-scale application for managing and editing my invoices. I tested your Windows package and it fits perfectly to enhance its functionality. The features I require include the ability to edit text, images, and annotations within PDF documents, as well as the capability to add form fields and perform other advanced editing tasks.

Dammar Singh Kudmal
Finance Manager, Construction
The desktop version of ComPDFKit SDK is perfect for our application. We added features to our application like editing a PDF, merely cropping, resizing, and converting to an lmage for users editing files and printing documents with their home printer.

Sander Gautam
Project Manager, Information Technology
ComPDFKit for Windows is easy to call and integrate, allowing users to use our products without any effort. ComPDFKit provides professional technical support, which helps us to shorten the development cycle and reduce a lot of difficulties in development. Our R&D team is really satisfied and we hope to continue our long-term cooperation.

Jorge Brand
Developers, Software Development
Free Trial
I have been working on a small-scale application for managing and editing my invoices. I tested your Windows package and it fits perfectly to enhance its functionality. The features I require include the ability to edit text, images, and annotations within PDF documents, as well as the capability to add form fields and perform other advanced editing tasks.

Dammar Singh Kudmal
Finance Manager, Construction
The desktop version of ComPDFKit SDK is perfect for our application. We added features to our application like editing a PDF, merely cropping, resizing, and converting to an lmage for users editing files and printing documents with their home printer.

Sander Gautam
Project Manager, Information Technology
ComPDFKit for Windows is easy to call and integrate, allowing users to use our products without any effort. ComPDFKit provides professional technical support, which helps us to shorten the development cycle and reduce a lot of difficulties in development. Our R&D team is really satisfied and we hope to continue our long-term cooperation.

Jorge Brand
Developers, Software Development
Free Trial

Powered by ComPDFKit for Windows SDK

Web Demo

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Try our Web SDK online to explore the possibilities.

Launch Demo
PDF Reader Pro

PDF Reader Pro

The easiest way to experience all our capabilities.

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Support

Changelog

Learn more about the updates in the new version.

Guides

Explore our comprehensive documentation and guides.

Contact Sales

Contact us to get a free trial.

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