Spire.PDF
The facts below are what the maker publishes about Spire.PDF, checked and dated. Our editors have not written about it yet.
Plans and prices
From Spire.PDF's own pricing page, checked 5 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free Edition | Free | 10-page PDF limit · PDF-to-image conversion limited to first 3 pages |
| Pro Edition — Developer Small Business, with free support | $999, paid once | 1 developer · 1 deployment location · no public sites/cloud-based/docker apps · Perpetual license; includes updates for 1 year |
| Pro Edition — Developer Small Business, with paid support | $1,498, paid once | 1 developer · 1 deployment location · paid support · Perpetual license; includes updates for 1 year |
The facts
Each one read from Spire.PDF's own pages, with the date it was checked.
What it does
- 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.checked 5 Oct 2026
- Dependencies
- The vendor describes the library as having no external dependencies and says Adobe Acrobat is not required.checked 5 Oct 2026
- Frameworks
- The product page lists C#, VB.NET, ASP.NET, .NET Core, .NET 5 through .NET 10, MonoAndroid, and Xamarin.iOS application support.checked 5 Oct 2026
- Integrations
- The vendor says the library can be installed through NuGet or added to a .NET project by referencing the package DLL files.checked 5 Oct 2026
- License terms
- The vendor lists the commercial license as perpetual and says it includes updates for one year.checked 5 Oct 2026
- PDF operations
- Features include PDF creation and editing, merging and splitting, metadata updates, page cropping and copying, and text, attachment, and image extraction.checked 5 Oct 2026
- Product
- Spire.PDF for .NET is a PDF API for creating, writing, editing, handling, and reading PDFs from .NET applications.checked 5 Oct 2026
- Security features
- PDF security features include encryption and decryption, passwords, permission restrictions, and digital signatures.checked 5 Oct 2026
- Signatures and watermarks
- The product supports digital signatures with timestamps, dynamic or image stamps, and text or image watermarks.checked 5 Oct 2026
- 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.checked 5 Oct 2026
Money
- 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.checked 5 Oct 2026
The company
- Headquarters
- The vendor's contact page lists its address in Chengdu, Sichuan, China.checked 5 Oct 2026
- Maker
- E-iceblue Co. Ltd. describes itself as a vendor of .NET, Java, Android, and cloud development components.checked 5 Oct 2026
Where it runs
- Linux deployment
- A vendor forum response says Linux use requires the netstandard2.0 DLL and additional NuGet references including SkiaSharp and several System packages.checked 5 Oct 2026
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