Free Spire. PDF for. NET

Free .NET PDF API - Developing PDF in C#, VB.NET, ASP.NET

Completely Free. NET PDF Library

Free Spire.PDF for .NET is a Community Edition of the Spire.PDF for .NET, which is a totally free PDF API for commercial and personal use. As a standalone .NET library, Free Spire.PDF for .NET enables developers to create, write, edit, convert, print, handle and read PDF files on any .NET( C#, VB.NET, ASP.NET, .NET Core) applications.

Using this free .NET PDF library, you can implement rich capabilities to create PDF files from scratch or process existing PDF documents. Many rich features can be supported, such as security setting, PDF text/attachment/image extract, PDF merge/split, metadata update, section and paragraph optimizing, graph/image drawing and inserting, table creation and processing, and importing data etc.

Friendly Reminder:
We don't provide technical or any other support to the users of the free versions.

Free Spire.PDF for .NET

Spire.PDF for .NET can be applied to easily converting Text, Image and HTML to PDF with C#/VB.NET in high quality.

Free Edition $0

Free version is limited to 10 pages of PDF. This limitation is enforced during loading and creating files. When converting PDF to Image, the first 3 pages of PDF files will be converted to Image format successfully.

  • Standalone .NET library
  • 100% independent .NET PDF class library
    which doesn't require Adobe Acrobat to be installed on system.

    • PDF 1.2 to PDF 1.7
    • PDF/A - 1b
    • PDF/x1a
    • 14 Core Fonts
    • Type 1 Fonts
    • Type 3 Fonts
    • CJK Fonts
    • True Type Fonts
    • Unicode Support
  • Create, get and verify, remove digital signature
  • Encrypt and Decrypt PDF file
  • Image and Shape
  • Create & Fill Form Field
  • Merge and Split PDF document
  • Manage attachment
  • Manage bookmark
  • Manage annotation
  • Text & image watermark
  • Find & Highlight
  • Insert Hyperlink
  • Extract text and image
  • Header and Footer
  • Create & Format Table
  • Print PDF file
  • Compress PDF
  • Conversion
    Only Free Spire.PDF, No Adobe Acrobat installed.

    Free Spire.PDF for .NET is a totally independent .NET PDF library. It Does NOT require Adobe Acrobat or any other 3rd party software/library installed on system.

    Free Spire.PDF for .NET supports converting HTML, XPS, Text and Image to PDF documents with efficient performance. Developers can transform PDF to XPS, EMF, JPG, PNG, BMP, TIFF, Text format. Furthermore, along with Free Spire.Doc for .NET and Free Spire.XLS for .NET, developers can convert Word (Doc/Docx), Excel (Xls/Xlsx/Xlsb) and XML to PDF.

    Free Spire.PDF for .NET offers the facility to merge/split PDF documents and overlay documents. Developers can overlay pages from different PDF documents one over another. Meanwhile, Free Spire.PDF for .NET can provide import and stamp feature, booklet feature and form filling which can help users read value from form fields and populate a database.

    Free Spire.PDF for .NET can protect PDF documents by setting passwords and digital signature. User password and owner password can determine the encrypted PDF documents readability, modifiability, printability and other selective restrictions. Meanwhile, digital signature, as a more effective method, can be applied to safeguard and authenticate PDF documents.

    Document information can be set with Free Spire.PDF for .NET including custom metadata, document properties, page orientation, and page size. Wherein, document properties consist of document restrictions (printing, document assembly, page extraction, comment etc. allowed or not) and document description about file title, author, subject, keywords and so on. By using Free Spire.PDF for.NET, viewer preferences can be set with position, title display, resize, page mode and print scaling etc.

    Other Features
    • PDF/A-1b and PDF/x1a:2001 Compliance, both standards can be applied.
    • Extract images, text, pages and attachments from a PDF document.
    • Pen and brush to draw shape elements, text, images into PDF documents.
    • Layers, transparent graphics, color space and barcode creation can render to PDF documents.
    • Add scalar/vector images and mask and place them in designated location.