Looking for an alternative
IronPDF 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
No credit card required.
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 have 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.
Proven PDF library
Over the more than 15 years since its first publication, the Syncfusion® .NET PDF Library has become a mature and proven product.
200+ demos
These real-world examples demonstrate the features and APIs of the PDF Framework that let users do various PDF-related activities like create, edit, view, convert, and compress.
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.
15+ years Proven PDF library
Over the more than 15 years since its first publication, Syncfusion’s .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 400 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.
Comparison between Syncfusion® PDF Framework vs IronPDF
HIGHLIGHTS
The Syncfusion .NET PDF Library is one of the best .NET PDF libraries on the market, offering a rich set of APIs to interact with the software.
Supported Platforms
| .NET Ecosystem | Syncfusion® | IronPDF |
|---|---|---|
| WinForms |
|
|
| WPF |
|
|
| UWP |
|
|
| ASP.NET Core |
|
|
| ASP.NET MVC |
|
|
| Blazor |
|
|
| Flutter |
|
|
| WinUI |
|
|
| .NET MAUI |
|
|
| Linux |
|
|
| Xamarin |
|
|
| Mac |
|
|
| Azure |
|
|
| Amazon Web Services |
|
|
| Google Cloud Platform |
|
|
Installation Options
| Installation Method | Syncfusion® | IronPDF |
|---|---|---|
| Web Installer |
|
|
| Offline Installer |
|
|
| Linux Installer |
|
|
| macOS Installer |
|
|
| NuGet |
|
|
Create PDFs
Feature | Syncfusion® | IronPDF |
|---|---|---|
| Create PDFs from scratch |
|
|
| Create PDFs from Word templates |
|
|
| Create PDFs from Excel templates |
|
|
| Create PDFs from HTML templates |
|
|
| Create PDFs from web URL |
|
|
| Create PDFs from Power point templates |
|
|
| Create PDFs from text file |
|
|
| Create PDFs from scanned images with text |
|
|
| Crate accessible PDF with 508 compliance |
|
|
| Add text and images |
|
|
| Add graphical shapes |
|
|
| Add headers/footers |
|
|
| Automatic page numbering |
|
|
| Create PDF portfolio |
|
|
| Add, edit and remove document attachments |
|
|
| Add, edit and remove bookmarks |
|
|
| Add, edit and remove JavaScript actions |
|
|
| Incremental document updates |
|
|
Linearized PDF |
|
|
| Document page settings |
|
|
| PDF/A compliance (PDF/A-1 to PDF/A-4) |
|
|
| Add document metadata |
|
|
| Add PDF viewer preferences |
|
|
| Barcode & QR Code Generation |
|
|
| PDF Layer Support (OCG) |
|
|
| Watermarking |
|
|
| Tables |
|
|
Edit PDFs
| Feature | Syncfusion | IronPDF |
|---|---|---|
| Insert, delete, rotate, reorder and duplicate PDF pages |
|
|
| Split PDF |
|
|
| Merge PDF |
|
|
| Import pages from another PDF |
|
|
| Add and edit PDF metadata |
|
|
| Encrypt and decrypt PDF |
|
|
| Insert, replace, delete and extract images |
|
|
| Annotation & Markup |
|
|
| Add, delete and review Comments & Notes |
|
|
| Import and export annotations |
|
|
| Add, edit, remove, fill and flatten form fields |
|
|
| Import and export form data from FDF, XFDF, and XML |
|
|
| Stampe PDF content |
|
|
| Watermark PDF |
|
|
| Stamp PDF |
|
|
| Redact PDF content |
|
|
| Optimize PDF |
|
|
| Replace font |
|
|
Convert PDFs
Conversion Type | Syncfusion® | IronPDF |
|---|---|---|
| HTML to PDF |
|
|
| CSHTML to PDF |
|
|
| URL to PDF |
|
|
| Razor to PDF |
|
|
| ASPX to PDF |
|
|
| XPS to PDF |
|
|
| Images to PDF |
|
|
| TIFF to PDF |
|
|
| PDF to Images |
|
|
| Word to PDF |
|
|
| RTF to PDF |
|
|
Excel to PDF |
|
|
PPTX to PDF |
|
|
PDF to PDF/A |
|
|
PDF/A to PDF |
|
|
PDF to Word |
|
|
PDF to Excel |
|
|
PDF to PPT |
|
|
PDF to HTML |
|
|
Digital signature
| Feature | Syncfusion® | IronPDF |
|---|---|---|
| Apply digital signatures |
|
|
| Multiple signature support |
|
|
| Add Custom Signature Appearance |
|
|
| Sign with PFX/P12 Certificates |
|
|
| Sign with Hardware Security Module (HSM) |
|
|
| Sign with Smart Card or USB Token |
|
|
| Apply Self-Signed Certificates |
|
|
| Timestamped Signatures |
|
|
| Long-Term Validation (LTV) Signing |
|
|
| Apply Visible & Invisible Signatures |
|
|
| Certify document |
|
|
| Validate digital signatures |
|
|
| Verify Revocation Status |
|
|
| Verify Timestamp Validity |
|
|
| Check Signature Modifications |
|
|
| Verify Multiple Signatures |
|
|
| Compliant with ISO 32000-1 & ISO 32000-2 (PDF 2.0) |
|
|
| Support for PAdES (ETSI TS 102 778) |
|
|
| Support CAdES Signatures |
|
|
| FIPS 140-2 Compliant Cryptography |
|
|
Encrypt and Decrypt PDFs
| Feature | Syncfusion® | IronPDF |
|---|---|---|
| Password-Based Encryption (User & Owner Passwords) |
|
|
| AES Encryption (128-bit, 256-bit) |
|
|
| Security permissions & Access control |
|
|
| GDPR & HIPAA Compliance |
|
|
| FIPS 140-2 Compliant Cryptography |
|
|
| Remove encryption and permissions |
|
|
PDF form creation and editing
| Feature | Syncfusion® | IronPDF |
|---|---|---|
| Create New PDF Forms |
|
|
| Edit Existing Forms |
|
|
| Text Fields |
|
|
| Checkboxes |
|
|
| Radio Buttons |
|
|
| Dropdown Lists (Combo Boxes) |
|
|
| List Boxes |
|
|
| Push Buttons |
|
|
| Signature Fields |
|
|
| Date Pickers |
|
|
| Custom JavaScript Actions |
|
|
| Auto-Calculate Fields |
|
|
| Format Input Fields |
|
|
| Customize form field appearance |
|
|
| Tab Order Navigation |
|
|
| Set Required Fields |
|
|
| Set Read-Only Fields |
|
|
| Multi-Line Text Support |
|
|
| Right-to-Left (RTL) Language Support |
|
|
| Dynamic Field Resizing |
|
|
| Fill and flatten form fields |
|
|
| Redact sensitive form data |
|
|
| Import and export form data from FDF, XFDF, and XML |
|
|
PDF Annotations
| Feature | Syncfusion® | IronPDF |
|---|---|---|
| Add, delete, edit and flatten Annotations |
|
|
| Export and import annotation from FDF, XFDF and JSON |
|
|
| Text markup |
|
|
| Attachment |
|
|
| Document link |
|
|
| File link |
|
|
| Ink |
|
|
| Line |
|
|
| 3D annotation |
|
|
| Shape (Circle, Square, Rectangle, Polygon, Line) |
|
|
| Rubber stamp |
|
|
| Pop-up |
|
|
| Sound |
|
|
| Rich Media |
|
|
| URI |
|
|
| Watermark |
|
|
| Redaction |
|
|
| Measurement |
|
|
| Comments and Review |
|
|
OCR Processing & Recognition
| Feature | Syncfusion® | IronPDF |
|---|---|---|
| Full OCR on Scanned PDFs |
|
|
| Zone-Based OCR |
|
|
| OCR Multi-Page Support |
|
|
| OCR on Rotated & Skewed Text |
|
|
| Searchable PDF (PDF/A) |
|
|
| Multi-Language OCR Support |
|
|
| 100+ languages |
|
|
| Right-to-Left (RTL) OCR Support |
|
|
| Digital Signature for OCR PDFs |
|
|
| On-Premise OCR Engine |
|
|
| OCR text redaction |
|
|
| Noise Reduction & Image Preprocessing |
|
|
ZUGFeRG PDFs
| Feature | Syncfusion® | IronPDF |
|---|---|---|
| Generate ZUGFeRD Invoices |
|
|
| Embed XML Data into PDFs |
|
|
| Support for Multiple ZUGFeRD Versions |
|
|
| Enable Custom Metadata |
|
|
| PDF/A-3b & PDF/A-3u Compliance |
|
|
| Factur-X Compatibility |
|
|
| Digitally Sign ZUGFeRD Invoices |
|
|
| UN/CEFACT Cross-Industry Invoice (CII) Compliance |
|
|
| EU Directive 2014/55/EU Compliance |
|
|
Data Extraction
| Feature | Syncfusion® | IronPDF |
|---|---|---|
| Extract text |
|
|
| Extract images |
|
|
| Extract metadata |
|
|
| Extract attachments |
|
|
| Export annotations |
|
|
| Export form data from FDF, XFDF, and XML |
|
|
| Extract data from scanned PDFs (OCR) |
|
|
| Export PDF to image |
|
|
Redact PDFs
| Feature | Syncfusion® | IronPDF |
|---|---|---|
| Text Redaction |
|
|
| Image Redaction |
|
|
| Shape Redaction |
|
|
| Form Field Redaction |
|
|
| Annotation Redaction |
|
|
| Custom appearance |
|
|
| Redact Across Multiple Pages |
|
|
| Permanently Remove Redacted Data |
|
|
| GDPR Compliance |
|
|
* The comparison data is taken from Syncfusion 2024 Volume 4 release.
** If you have questions about the comparison tables, please contact us.
Our Customers Love Us
Having an excellent set of tools and a great support team, Syncfusion® reduces customers’ development time. Here are some of their experiences.
Excellent experience with Syncfusion!
Syncfusion is a product that makes life easier! I use it to create Blazor applications (server side and webassembly) and the controls speed up development a lot. Furthermore, if needed, it is possible to ask for direct support that is never long in coming!
Andrea Scarpante,
Sydea srl
Great support and comprehensive product suite
I use a lot of their DocIO toolkit. The support they provide for that is something to aspire to - really great.
Ian Yates,
Medical IT Pty Ltd
The complete component set
It is the most complete component set available. Also very handy is the fact that there is a community edition, this gives me the opportunity to test thing at home without buying a separate license.
Johan Visser,
H and T Pawnbrokers
Rated by users across the globe
Developers
0
M+
Companies
0
K+
Years in Business
0
+
Fortune 500 Companies
0
+
Contact us today to find out how much you can save by switching!
Succinctly® Series On The Go
Explore our 200+ free ebooks to learn about the latest trends in software development.
Awards
Greatness—it’s one thing to say you have it, but it means more when others recognize it. Syncfusion® is proud to hold the following industry awards.
