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PDF Framework suite?
Trusted by global enterprises, the Syncfusion® .NET PDF Library supports advanced features like digital signatures, form filling, redaction, and PDF/A compliance for secure and professional document workflows.
- Create, edit, merge, split, and secure PDFs easily.
- Secure PDFs with encryption, signatures, and redaction.
- Convert HTML, Word, Excel, and PPTX files to PDFs accurately.
- Cross Platform Support
Syncfusion is trusted by the world’s leading companies
The Syncfusion® difference
100% Standalone .NET PDF library
The .NET PDF Library is completely independent and doesn't need Adobe dependencies.
Create, modify, and save PDF files
The PDF Library gives you the ability to create PDF documents from scratch and save them to a disk or stream with just a few lines of code. Existing documents can also be opened and manipulated.
Fast performance
Load documents with thousands of pages instantly. Enjoy a seamless scrolling experience. The virtualized page rendering utilizes less runtime memory.
Encrypt and decrypt PDFs
PDF Library provides support for basic to advanced encryption standards.
Digitally sign PDF files
Documents can be digitally signed using x509 certificates with local, web, or hardware-based signatures.
20+ years Proven PDF library
Over the more than 20 years since its first publication, Syncfusion® .NET PDF Library has become a mature and proven product.
200+ Demos
These real-world examples demonstrate the supported features and APIs for utilizing the PDF Framework to do various PDF-related activities like create, edit, view, convert, compress, etc.
Powerful and comprehensive APIs
All the elements in a typical PDF document like text, formatting, images, shapes, and tables are accessible through a comprehensive set of APIs.
No server deployment fee
There are no distribution fees, per-server licensing fees, or royalties, making the PDF Library very cost-effective.
Free, unlimited support
Utilize direct support from our document processing libraries development team along with live chat support with no additional charges.
G2 reviews
On G2, more than 600 users have positively reviewed Syncfusion®. Other vendors have far fewer reviews.
Free Community License
Get free, unlimited access to the over 1,600 controls in Syncfusion® Essential Studio® through the Community License if eligible. No credit card required.
100% Standalone .NET PDF library
The .NET PDF Library is completely independent and doesn't need Adobe dependencies.
Create, modify, and save PDF files
The PDF Library gives you the ability to create PDF documents from scratch and save them to a disk or stream with just a few lines of code. Existing documents can also be opened and manipulated.
Fast performance
Load documents with thousands of pages instantly. Enjoy a seamless scrolling experience. The virtualized page rendering utilizes less runtime memory.
Encrypt and decrypt PDFs
PDF Library provides support for basic to advanced encryption standards:
Digitally sign PDF files
Documents can be digitally signed using x509 certificates with local, web, or hardware-based signatures.
20+ years Proven PDF library
Over the more than 20 years since its first publication, Syncfusion® .NET PDF Library has become a mature and proven product.
200+ Demos
These real-world examples demonstrate the supported features and APIs for utilizing the PDF Framework to do various PDF-related activities like create, edit, view, convert, compress, etc.
Powerful and comprehensive APIs
All the elements in a typical PDF document like text, formatting, images, shapes, and tables are accessible through a comprehensive set of APIs.
No server deployment fee
There are no distribution fees, per-server licensing fees, or royalties, making the PDF Library very cost-effective.
Free, unlimited support
Utilize direct support from our document processing libraries development team along with live chat support with no additional charges.
G2 reviews
On G2, more than 600 users have positively reviewed Syncfusion®. Other vendors have far fewer reviews.
Free Community License
Get free, unlimited access to the over 1,600 controls in Syncfusion® Essential Studio® through the Community License if eligible. No credit card required.
The Syncfusion® .NET PDF suite versus other vendors
Note: Other Vendors denotes Apryse[v11.8.0], Nutrient[v2025.11.0], ASPOSE[v25.12.0]
Yes
No
Some of them not having
Features
Supported Platforms
Platforms | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
WinForms |
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WPF |
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UWP |
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ASP.NET Core |
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ASP.NET MVC |
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Blazor |
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Flutter |
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WinUI |
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.NET MAUI |
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Linux |
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Mac |
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Azure |
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Amazon Web Services |
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Google Cloud Platform |
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C# |
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Dart |
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Installation
Platforms | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
Web Installer |
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Offline Installer |
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Linux Installer |
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Supported Format
Platforms | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
HTML |
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Word |
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Excel |
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PPTX |
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XPS |
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PNG |
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TIFF |
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JPEG |
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Create & Edit APIs
Features | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
Open PDF Files |
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Open and edit existing PDF documents |
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Loading & saving document |
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Save PDF Files |
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Open PDF Files
Platforms | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
From Google Drive |
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From Dropbox cloud file storage |
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From Azure blob storage |
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From Google Cloud storage |
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From AWS S3 |
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Save PDF Files
Features | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
To Google Drive |
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To Dropbox cloud file storage |
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To Azure blob storage |
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To Google Cloud storage |
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To AWS S3 |
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PDF Conversions
Features | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
PDF to Word |
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PDF to Excel |
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PDF to PPT (PowerPoint) |
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HTML to PDF file |
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PDF file to HTML format |
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Images to PDF |
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PDF to Images |
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Other file formats to PDF |
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PDF to other formats |
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PDF to PDF/A formats |
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PDF/A to PDF format |
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Working with PDF
Features | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
Formatting PDF Document |
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Manipulate PDF Document |
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Optimize PDF |
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Merge PDF files |
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Split PDF files |
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Compress PDF |
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Creating sections in a PDF |
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Remove Specific Keys from the Existing Document Information |
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Performing incremental update for PDF document |
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Choosing the viewer preferences |
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Adding document action |
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Working in Multi-Threading Environment |
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Uniform Resource Naming in PDF document |
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Memory Optimization |
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Find corrupted PDF document |
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Embed all the non-embedded fonts in the existing PDF document |
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Add or retrieve BaseUri in a PDF document |
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Working with Pages
Components | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
Add Pages |
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Move PDF Pages |
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Delete PDF Pages |
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Change PDF Page Size |
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Rotate PDF Pages |
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Add Header and Footer to PDF |
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Crop Pages |
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Add watermark |
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Add Page Number |
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Add backgrounds |
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Image stamps in PDF File |
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Text stamps in PDF File |
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Page stamps in PDF File |
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Get and Set Page Properties |
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Working with Text
Features | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
Text Formatting inside PDF |
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Replace Text in PDF |
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Rotate Text Inside PDF |
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Search and Get Text |
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Drawing text in an existing document |
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Drawing text using different fonts |
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Draw text using standard fonts |
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Draw text using TrueType fonts |
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Draw text using CJK fonts |
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Measuring a string |
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Embedding fonts and working with Unicode text |
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Drawing Right-To-Left text |
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Adding a HTML Styled Text |
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Creating a multicolumn PDF document |
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Inserting Rich Text Format contents |
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Adding an Ordered, Unordered List |
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Replace Fonts in an existing document |
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Search and get the bounds of a text in a document |
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Drawing complex script language text |
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Drawing text using OpenType font |
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Drawing text with baseline alignment |
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Adding a text encoding to the PdfStandardFont |
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PDF Tooltip |
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Working with Images
Features | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
Add Image |
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Delete Images |
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Extract Images |
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Get Resolution and Dimensions |
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Working with Image Placement |
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Search and Get Images |
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Replace Image |
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Set Image Size |
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Supported Image Formats
Features | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
JPEG |
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JPEG with Exif standard |
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GIF |
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PNG |
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TIFF |
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ICO and ICON |
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Working with Brush
Features | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
Solid Brush |
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Linear gradient brush |
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Radial Gradient Brush |
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Tiling Brush |
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Working with Tables
Features | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
Create or Add Table |
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Extract Table |
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Integrate Table |
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Manipulate Tables |
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Remove Tables |
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Built-in table styles |
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Working with Forms
Features | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
Working with AcroForm |
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Working with XFA Form |
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Creating a new PDF form |
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Add, fill and remove form fields in an existing PDF Document |
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Set appearance to the PDF form fields |
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Modifying the existing form field in PDF document |
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Retrieving/Modifying the fore and back color of an existing form fields |
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Enumerate the form fields |
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Fill the XFA form fields along with Acroform in a same API |
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Importing FDF file to PDF |
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Export PDF file to FDF |
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Complex script support for form fields |
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Auto naming of form fields |
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Adding actions to form fields |
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Auto resizing text box field text |
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Merge Documents
Features | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
Importing pages from multiple documents |
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Optimizing PDF resources when merging PDF documents |
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Reducing the size of the PDF file while importing pages |
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Extend the margin of the PDF pages while merging PDF document |
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Working with Text and Image Extraction
Features | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
Working with basic text extraction |
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Working with layout based text extraction |
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Text Extraction with Bounds |
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Working with Lines |
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Working with words |
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Working with characters |
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Woking with Image Extraction |
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Additional Features
Features | Syncfusion<sup class="trademark-small">®</sup> | Other Vendors |
|---|---|---|
PDF/A sub standards (PDF/A-1 to PDF/A-4) |
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Working with OCR |
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Color Spaces |
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Working with JavaScript |
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Meta data |
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Hyperlinks |
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Headers and Footers |
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Shapes |
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Bookmarks |
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Named destination |
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Annotation |
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Attachments |
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