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Spire.PDF

e-iceblue.com

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Spec score 7.9 #15 of 31 in PDF SDKs

Spec sheet

Product
Spire.PDF for .NET is a PDF API for creating, writing, editing, handling, and reading PDFs from .NET applications.Read 5 Oct 2026 · e-iceblue.com
Integrations
The vendor says the library can be installed through NuGet or added to a .NET project by referencing the package DLL files.Read 5 Oct 2026 · e-iceblue.com
Support
The vendor provides free online technical resources, and listed paid-support licenses include one-on-one support from an expert and faster guaranteed response times.Read 5 Oct 2026 · e-iceblue.com
Headquarters
The vendor's contact page lists its address in Chengdu, Sichuan, China.Read 5 Oct 2026 · e-iceblue.com
Maker
E-iceblue Co. Ltd. describes itself as a vendor of .NET, Java, Android, and cloud development components.Read 5 Oct 2026 · e-iceblue.com
Conversion
The vendor lists PDF conversions to Word, Excel, PowerPoint, images, HTML, Markdown, XPS, SVG, TIFF, PCL, PostScript, and PDF/A, and conversions from text, images, TIFF, XPS, SVG, and HTML to PDF.Read 5 Oct 2026 · e-iceblue.com
Dependencies
The vendor describes the library as having no external dependencies and says Adobe Acrobat is not required.Read 5 Oct 2026 · e-iceblue.com
Frameworks
The product page lists C#, VB.NET, ASP.NET, .NET Core, .NET 5 through .NET 10, MonoAndroid, and Xamarin.iOS application support.Read 5 Oct 2026 · e-iceblue.com
Free edition limits
The free edition is limited to 10 PDF pages, with PDF-to-image conversion limited to the first 3 pages; the vendor says free-edition users receive no technical or other support.Read 5 Oct 2026 · e-iceblue.com
License terms
The vendor lists the commercial license as perpetual and says it includes updates for one year.Read 5 Oct 2026 · e-iceblue.com
Linux deployment
A vendor forum response says Linux use requires the netstandard2.0 DLL and additional NuGet references including SkiaSharp and several System packages.Read 5 Oct 2026 · e-iceblue.com
PDF operations
Features include PDF creation and editing, merging and splitting, metadata updates, page cropping and copying, and text, attachment, and image extraction.Read 5 Oct 2026 · e-iceblue.com
Security features
PDF security features include encryption and decryption, passwords, permission restrictions, and digital signatures.Read 5 Oct 2026 · e-iceblue.com
Signatures and watermarks
The product supports digital signatures with timestamps, dynamic or image stamps, and text or image watermarks.Read 5 Oct 2026 · e-iceblue.com

Plans and prices

Free Edition Free 10-page PDF limit · PDF-to-image conversion limited to first 3 pages Read 5 Oct 2026 · e-iceblue.com
Pro Edition — Developer Small Business, with free support $999, paid once Perpetual license; includes updates for 1 year 1 developer · 1 deployment location · no public sites/cloud-based/docker apps Read 5 Oct 2026 · e-iceblue.com
Pro Edition — Developer Small Business, with paid support $1,498, paid once Perpetual license; includes updates for 1 year 1 developer · 1 deployment location · paid support Read 5 Oct 2026 · e-iceblue.com

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