Spire.PDF 7.8.8
Spire.PDF for .NET is a versatile PDF library that enables software developers to generate, edit, read and manipulate PDF files within their own .NET applications. As a standalone PDF component, Spire.PDF for .NET provides users an incredible wealth of features without installing Adobe Acrobat. This component is completely written in C#, but also supports VB.NET, Windows Forms and ASP.NET.
With the Spire.PDF for .NET API, you can get the ability to read PDF text and image even attachments with high efficiency. Even the special content such as language written from right to left can be extracted such as Herbrew and Arabic. Other basic features such as text, image, table, shapes, hyperlinks, bookmark, headings, footnotes, lists, form fields, pagination, booklet barcode, attachments, transparency, annotations, actions, overlay etc all work great for users. As for security, Spire.PDF for .NET enables you to protect your PDF files by passwords and digital signature. Spire.PDF now supprots to work on .NET core, MonoAndroid and Xamarin.iOS platforms.
No packages depend on Spire.PDF.
Spire.PDF 7.8.8
New Features
Supports converting PDF to OFD.
Supports adding validity check marks to digital signatures. (SPIREPDF-1402)
PdfOrdinarySignatureMaker API supports setting signature image and details. (SPIREPDF-4393)
Bug Fixes:
Fixes the issue that the it inserted the page in the wrong position when using the Insert method. (SPIREPDF-3326 SPIREPDF-4534)
Fixes the issue that the application threw the error "System.ComponentModel.Win32Exception" when printing the PDF file. (SPIREPDF-3618)
Fixes the issue that the content was missing after converting PDF to SVG. (SPIREPDF-4296)
Fixes the issue that the content was incorrect after converting PDF to images. (SPIREPDF-4341)
Fixes the issue that the matching item could not be found when finding text. (SPIREPDF-4343)
Fixes the issue that the content was incorrect after converting PDF to PDFA1B. (SPIREPDF-4352)
Fixes the issue that the file in the print queue was too large when printing the PDF file.(SPIREPDF-4408)
Optimizes the time for encrypting PDF files. (SPIREPDF-4426)
Fixes the issue that some characters were not converted correctly after converting XPS to PDF. (SPIREPDF-4453)
Fixes the issue that the application threw the error "System.NullReferenceException" when finding text. (SPIREPDF-4456)
Fixes the issue that the application threw the error "Object reference not set to an instance of an object" when converting PDF to images. (SPIREPDF-4460)
Fixes the issue that the application threw the error "Object reference not set to an instance of an object" when merging PDF files. (SPIREPDF-4483)
Fixes the issue that the attachment name was incorrect after adding the attachment. (SPIREPDF-4488)
Fixes the issue that there were extra pages when inserting PDF pages. (SPIREPDF-4509)
Fixes the issue that it got garbled characters when extracting text from PDF. (SPIREPDF-4510)
Fixes the issue that it took a long time to get the custom properties. (SPIREPDF-4519)
Fixes the issue that the extracted text was incorrect. (SPIREPDF-4525)
Fixes the issue that the application threw the error "System.ArgumentNullException" when merging PDF files. (SPIREPDF-4539)
Fixes the issue that the application threw the error "System.FormatException" when merging PDF files.(SPIREPDF-4540)
Fixes the issue that the application hung when inserting PDF pages. (SPIREPDF-4556)
.NET Framework 2.0
- No dependencies.
.NET 5.0
- System.Text.Encoding.CodePages (>= 5.0.0)
- System.Drawing.Common (>= 5.0.0)
Xamarin.iOS 0.0
- System.Runtime.CompilerServices.Unsafe (>= 4.6.0)
- System.Buffers (>= 4.5.0)
- System.Memory (>= 4.5.3)
- System.Text.Encoding.CodePages (>= 4.6.0)
- SkiaSharp (>= 1.68.0)
MonoAndroid 0.0
- System.Text.Encoding.CodePages (>= 4.6.0)
- System.Memory (>= 4.5.3)
- System.Runtime.CompilerServices.Unsafe (>= 4.6.0)
- SkiaSharp (>= 1.68.0)
- System.Buffers (>= 4.5.0)
.NET Standard 2.0
- System.Text.Encoding.CodePages (>= 4.5.0)
- System.Runtime.CompilerServices.Unsafe (>= 4.5.0)
- System.Buffers (>= 4.5.0)
- System.Memory (>= 4.5.0)
- SkiaSharp (>= 1.68.0)
.NET Framework 4.0
- No dependencies.
| Version | Downloads | Last updated |
|---|---|---|
| 11.5.9 | 2 | 2025/6/3 |
| 11.5.5 | 2 | 2025/5/29 |
| 11.4.10 | 2 | 2025/5/30 |
| 11.3.0 | 1 | 2025/5/30 |
| 11.2.4 | 1 | 2025/5/30 |
| 11.1.5 | 3 | 2025/5/26 |
| 11.1.0 | 1 | 2025/5/30 |
| 10.12.4 | 2 | 2025/5/30 |
| 10.11.7 | 1 | 2025/5/30 |
| 10.11.1 | 1 | 2025/5/30 |
| 10.10.5 | 1 | 2025/5/30 |
| 10.10.0 | 1 | 2025/5/30 |
| 10.9.0 | 1 | 2025/5/30 |
| 10.8.1 | 1 | 2025/5/30 |
| 10.7.21 | 1 | 2025/5/30 |
| 10.7.13 | 1 | 2025/5/30 |
| 10.6.25 | 1 | 2025/5/30 |
| 10.6.7 | 2 | 2025/5/30 |
| 10.6.0 | 2 | 2025/5/30 |
| 10.5.5 | 1 | 2025/5/30 |
| 10.4.7 | 1 | 2025/5/30 |
| 10.4.2 | 2 | 2025/5/30 |
| 10.3.16 | 1 | 2025/5/30 |
| 10.3.7 | 1 | 2025/5/30 |
| 10.2.2 | 1 | 2025/5/30 |
| 10.1.17 | 1 | 2025/5/30 |
| 10.1.0 | 1 | 2025/5/30 |
| 9.12.0 | 1 | 2025/5/30 |
| 9.11.4 | 0 | 2023/11/10 |
| 9.11.0 | 1 | 2025/5/30 |
| 9.10.2 | 1 | 2025/5/30 |
| 9.9.9 | 1 | 2025/5/30 |
| 9.9.3 | 1 | 2025/5/30 |
| 9.8.5 | 1 | 2025/5/30 |
| 9.7.17 | 1 | 2025/5/30 |
| 9.7.14 | 1 | 2025/5/30 |
| 9.7.0 | 1 | 2025/5/30 |
| 9.6.0 | 1 | 2025/5/30 |
| 9.5.4 | 1 | 2025/5/30 |
| 9.4.12 | 1 | 2025/5/30 |
| 9.4.0 | 1 | 2025/5/30 |
| 9.3.4 | 1 | 2025/5/30 |
| 9.3.2 | 1 | 2025/5/30 |
| 9.2.6 | 1 | 2025/5/30 |
| 9.2.2 | 1 | 2025/5/30 |
| 9.1.0 | 1 | 2025/5/30 |
| 8.12.7 | 1 | 2025/5/30 |
| 8.12.5 | 1 | 2025/5/30 |
| 8.11.10 | 1 | 2025/5/30 |
| 8.11.2 | 1 | 2025/5/30 |
| 8.11.0 | 1 | 2025/5/30 |
| 8.10.5 | 1 | 2025/5/30 |
| 8.9.16 | 1 | 2025/5/30 |
| 8.9.2 | 1 | 2025/5/30 |
| 8.8.6 | 0 | 2022/8/17 |
| 8.7.9 | 1 | 2025/5/30 |
| 8.7.2 | 1 | 2025/5/30 |
| 8.6.1 | 2 | 2025/5/26 |
| 8.5.0 | 0 | 2022/5/6 |
| 8.4.15 | 2 | 2025/5/30 |
| 8.3.9 | 1 | 2025/5/30 |
| 8.2.2 | 1 | 2025/5/30 |
| 8.1.4 | 0 | 2022/1/19 |
| 8.1.0 | 1 | 2025/5/30 |
| 7.12.1 | 1 | 2025/5/30 |
| 7.11.1 | 1 | 2025/5/30 |
| 7.10.4 | 0 | 2021/10/19 |
| 7.10.0 | 1 | 2025/5/30 |
| 7.9.6 | 2 | 2025/5/30 |
| 7.9.2 | 1 | 2025/5/30 |
| 7.8.8 | 1 | 2025/5/30 |
| 7.8.2 | 1 | 2025/5/30 |
| 7.7.10 | 1 | 2025/5/30 |
| 7.6.15 | 0 | 2021/6/29 |
| 7.6.1 | 1 | 2025/5/30 |
| 7.5.0 | 1 | 2025/5/30 |
| 7.4.13 | 1 | 2025/5/30 |
| 7.4.5 | 1 | 2025/5/30 |
| 7.3.3 | 1 | 2025/5/30 |
| 7.3.1 | 0 | 2021/3/12 |
| 7.2.9 | 1 | 2025/5/30 |
| 7.2.5 | 1 | 2025/5/30 |
| 7.2.0 | 1 | 2025/5/30 |
| 7.1.10 | 0 | 2021/1/15 |
| 7.1.0 | 1 | 2025/5/30 |
| 6.12.20 | 1 | 2025/5/30 |
| 6.12.10 | 1 | 2025/5/30 |
| 6.12.3 | 1 | 2025/5/30 |
| 6.11.6 | 1 | 2025/5/30 |
| 6.11.0 | 1 | 2025/5/30 |
| 6.10.9 | 1 | 2025/5/30 |
| 6.10.4 | 1 | 2025/5/30 |
| 6.10.0 | 1 | 2025/5/30 |
| 6.9.16 | 0 | 2020/9/28 |
| 6.9.0 | 1 | 2025/5/30 |
| 6.8.5 | 1 | 2025/5/30 |
| 6.8.1 | 1 | 2025/5/30 |
| 6.7.12 | 6 | 2025/5/27 |
| 6.7.8 | 1 | 2025/5/30 |
| 6.7.6 | 1 | 2025/5/30 |
| 6.7.2 | 1 | 2025/5/30 |
| 6.5.15 | 1 | 2025/5/30 |
| 6.5.9 | 1 | 2025/5/30 |
| 6.5.6 | 1 | 2025/5/30 |
| 6.4.11 | 0 | 2020/4/20 |
| 6.4.4 | 1 | 2025/5/30 |
| 6.3.16 | 1 | 2025/5/30 |
| 6.3.10 | 1 | 2025/5/30 |
| 6.3.0 | 1 | 2025/5/30 |
| 6.2.6 | 1 | 2025/5/30 |
| 6.2.1 | 0 | 2020/2/11 |
| 6.1.8 | 1 | 2025/5/30 |
| 6.1.4 | 2 | 2025/5/26 |
| 5.12.15 | 1 | 2025/5/30 |
| 5.12.3 | 1 | 2025/5/30 |
| 5.11.18 | 1 | 2025/5/30 |
| 5.11.2 | 1 | 2025/5/30 |
| 5.11.0 | 1 | 2025/5/30 |
| 5.10.8 | 1 | 2025/5/30 |
| 5.10.2 | 0 | 2019/10/11 |
| 5.9.16 | 1 | 2025/5/30 |
| 5.9.6 | 1 | 2025/5/30 |
| 5.8.16 | 1 | 2025/5/30 |
| 5.8.7 | 1 | 2025/5/30 |
| 5.8.2 | 1 | 2025/5/30 |
| 5.7.20 | 0 | 2019/7/31 |
| 5.7.0 | 1 | 2025/5/30 |
| 5.6.31 | 2 | 2025/5/30 |
| 5.6.2 | 1 | 2025/5/30 |
| 5.5.21 | 1 | 2025/5/30 |
| 5.4.21 | 1 | 2025/5/30 |
| 5.4.20 | 1 | 2025/5/30 |
| 5.4.9 | 2 | 2025/5/30 |
| 5.4.1 | 1 | 2025/5/30 |
| 5.3.8 | 1 | 2025/5/30 |
| 5.3.2 | 0 | 2019/3/11 |
| 5.2.15 | 0 | 2019/2/28 |
| 5.2.3 | 1 | 2025/5/30 |
| 5.1.33 | 0 | 2019/1/31 |
| 5.1.16 | 1 | 2025/5/30 |
| 5.1.4 | 1 | 2025/5/30 |
| 5.1.0 | 1 | 2025/5/30 |
| 4.12.8 | 1 | 2025/5/30 |
| 4.12.2 | 1 | 2025/5/30 |
| 4.11.12 | 1 | 2025/5/30 |
| 4.11.8 | 3 | 2025/5/26 |
| 4.11.5 | 1 | 2025/5/30 |
| 4.11.3 | 1 | 2025/5/30 |