Spire.PDF
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free Edition | 10-page PDF limit · PDF-to-image conversion limited to first 3 pages | Free |
| Pro Edition — Developer Small Business, with paid support | Perpetual license; includes updates for 1 year · 1 developer · 1 deployment location · paid support | $1,498, paid once |
| Pro Edition — Developer Small Business, with free support | Perpetual license; includes updates for 1 year · 1 developer · 1 deployment location · no public sites/cloud-based/docker apps | $999, paid once |
As e-iceblue.com lists them, read 5 Oct 2026. The maker's own page has the final word.
Facts from Spire.PDF's own pages
- 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. · e-iceblue.com, 5 Oct 2026
- Dependencies
- The vendor describes the library as having no external dependencies and says Adobe Acrobat is not required. · e-iceblue.com, 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. · e-iceblue.com, 5 Oct 2026
- 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. · e-iceblue.com, 5 Oct 2026
- Headquarters
- The vendor's contact page lists its address in Chengdu, Sichuan, China. · e-iceblue.com, 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. · e-iceblue.com, 5 Oct 2026
- License terms
- The vendor lists the commercial license as perpetual and says it includes updates for one year. · e-iceblue.com, 5 Oct 2026
- Linux deployment
- A vendor forum response says Linux use requires the netstandard2.0 DLL and additional NuGet references including SkiaSharp and several System packages. · e-iceblue.com, 5 Oct 2026
- Maker
- E-iceblue Co. Ltd. describes itself as a vendor of .NET, Java, Android, and cloud development components. · e-iceblue.com, 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. · e-iceblue.com, 5 Oct 2026
- Product
- Spire.PDF for .NET is a PDF API for creating, writing, editing, handling, and reading PDFs from .NET applications. · e-iceblue.com, 5 Oct 2026
- Security features
- PDF security features include encryption and decryption, passwords, permission restrictions, and digital signatures. · e-iceblue.com, 5 Oct 2026
- Signatures and watermarks
- The product supports digital signatures with timestamps, dynamic or image stamps, and text or image watermarks. · e-iceblue.com, 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. · e-iceblue.com, 5 Oct 2026
Where Spire.PDF stands on Freedom251
- PDF SDKs#15 of 31