Free Spire.PDF for .NET

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

  • Overview
  • Features
  • Examples
  • Guideline
  • Support

Completely Free .NET PDF Library

Over 1,000,000 Developers Are Already Using Our Libraries
To Create Their Amazing Applications.

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.

  • Convert

  • Compress

  • Extract

  • Protect

  • eSign

  • Form

  • Watermark

  • Merge & Split

  • Layer

  • Adjust

Convert PDF to Word

PDF is considered an ideal file format for document sharing and printing, but it is difficult to edit. If you want to modify the text in a PDF file, you can convert it to Word.

Compress PDF

Compressing PDFs can reduce their size by 10 to 100 times, thus saving you a lot of storage space and making PDF documents easier to transfer over the Internet.

Extract Text and Images

When you just need to get the information in a PDF document regardless of its format and structure, you can simply extract the text and images from the document.

PDF Encryption

PDF encryption is a crucial task when it comes to sharing confidential documents on the Internet. Using Spire.PDF, you can set a password to restrict access to your PDF file, or set permissions to define what actions users can perform on the document.

Digitally Sign PDF

A digital signature provides assurances about the validity and authenticity of your PDF documents. Once a PDF document is digitally signed, any changes to the document will invalidate the signature.

Create a Form

Form fields make it easier to collect information. Users can enter information by choosing an item from a drop-down list, inserting text in a combo box, or checking a check box.

Add a Watermark to PDF

Watermarks in PDFs serve many important purposes, such as identifying the document's owner, indicating its status and preventing unauthorized copying and distribution.

Merge and Split PDF

Sometimes, you might need to merge multiple PDF files into one in order to store and review them easier. Likewise, you may also want to split a PDF file into individual files and share them with others separately.

Add Layers to PDF

PDF layer is an interactive feature for PDF documents that allows some part of the content to be made visible or hidden. Layers are used for items such as CAD drawings, layered artwork, maps, and multi-language documents.

Change PDF Page Size

By adjusting the page size of a PDF document, you can easily get a better document appearance or make the page size match the printing paper.

.NET

Standalone .NET library

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

VERSION

  • PDF 1.2 to PDF 1.7
  • PDF/A - 1b
  • PDF/x1a

FONT

  • 14 Core Fonts
  • Type 1 Fonts
  • Type 3 Fonts
  • CJK Fonts
  • True Type Fonts
  • Unicode Support

OPERATION

Powerful Toolset, Multichannel 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

  • Tagged PDF

CONVERSION

Conversion File Documents with High Quality

  • SVG

  • TXT

  • XPS

  • HTML

  • Image

PDF

  • Excel

  • Word

  • PCL

  • PDF/A

  • PNG

  • BMP

  • JPEG

  • EMF

  • TIFF

MAIN FUNCTION

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.

High Quality PDF File Conversion

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.

Easily Manipulate document and Form fields

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.

Security Features

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 Settings features

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.

Pro Edition $999

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.

GET STARTED

Free Trials for All Progress Solutions

Support Environment

  • Fully written in C# and also support VB.NET
  • Applied on .NET Framework 2.0, 3.5, 3.5 Client Profile, 4.0, 4.0 Client Profile and 4.5
  • Support Windows Forms and ASP.NET Applications
  • Support 32-bit OS
  • Support 64-bit OS
  • Support PDF Version 1.2, 1.3, 1.4, 1.5, 1.6 and 1.7
  • PDF API reference in HTML
  • Be Independent and do not need Adobe Acrobat or other third party pdf libraries

Conversion

Security

Text

  • Draw Text
  • Set Text Format(font, size, color, layout, rotate, transform, alignment, transparency)
  • Read/Extract Text(Whole Page, Certain Page, Particular Pages)

Fonts

  • 14 Core Fonts
  • Type 1 Fonts
  • Type 3 Fonts
  • True Type Fonts
  • CJK Fonts
  • Unicode Support(Part)

Images

Attachments

  • Add Attachments
  • Add Attachments with Attachments Annotations
  • Remove Attachments
  • Read/Extract Attachments
  • Read/Extract Attachments with Attachments Annotations
  • Get Attachments Properties

Tables

  • Simple Table
  • Image Table
  • Nested Table
  • Export Database Table and Pictures to PDF
  • Set Table Layout

Bookmarks

List

Header and Footer

Watermark

Links and Actions

FormField

  • Add Fields(Text Box, Check Box, List box, Combo Box, Button, Radio Button)
  • Remove Fields
  • Edit Fields
  • Fill Fields

Pages

Document

Feature Details

Feature Support Feature Support
Drawing Text Standards
Text Formatting PDF/ A-1b Compliance
Multilingual Support PDF/x1a: 2001 Compliance
Text Extraction (Only for .NET) Fonts
Graphics Standard Fonts
Pen and Brush CJK Fonts
Layers (Only for .NET) ** True Type Fonts
Transparent Graphics Unicode True Type
Color Spaces ** Images
Image Extraction Scalar Images
Transform Mask
Bar code (Only for .NET) Vector Images
Document Operations Watermarks
Merge Documents Data Management
Split Document (Only for .NET) ADO.Net Tables Support (Only for .NET)
Overlay Documents Rich Table Styles
Import and Stamp Table Features (Only for .NET)
Booklet Page Operations
Document Settings Headers and Footers
Custom Metadata Page Label
Document Properties Automatic Fields
Page Orientation Interactive Elements
Page Sizes Annotation
Viewer Preferences Action
Forms JavaScript
Create Form Attachment
Form Filling Bookmark
Form Export ** Security
Conversion Digital Signature
HTML to PDF Encryption
Doc To PDF (Spire.Doc required) Decryption

** Partial supported

Note: Transparent Graphics is Partial Supported for Silverlight

Request free customized demo just for you.

High Quality Conversion

Convert HTML to PDFTutorials / Orginial HTML and PDF file

Convert HTML to PDF

Convert PDF to ImageTutorials / Orginial PDF and Image file

Convert PDF to Image

Convert XPS to PDFTutorials / Orginial XPS and PDF file

Convert XPS to PDF

Convert PDF to XPSTutorials / Orginial PDF and XPS file

Convert PDF to XPS

Table Layout

Set PDF Table LayoutTutorials / C# Code

Set PDF Table Layout

Merge/Split PDF documents

Merge PDF documentsTutorials / C# Code

Merge PDF documents

Split PDF documentsTutorials / C# Code

Split PDF documents

Form Filling

Form FillingTutorials / C# Code

Fill Form Fields in PDF File with C#

Text, Image Extract from PDF

Read Text and Images from PDFTutorials / C# Code

Read Text and Images from PDF

Encrypt, Decrypt, Create PDF Digital Signature in PDF

Encrypt PDF DocumentTutorials / C# Code

Encrypt PDF Document

Create Digital Signature in PDFTutorials / C# Code

Create Digital Signature in PDF

Add PDF Header and Footer

Add PDF HeaderTutorials / C# Code

Add PDF Header

Add PDF FooterTutorials / C# Code

Add PDF Footer

Beginners Guide is the first step towards learning the basic information of Free Spire.PDF for .NET

Program Guide lists the detailed features of our Free Spire.PDF for .NET and you can search for the information you want.

The Videos give an operation guide by video. You can check the produce step by step.

Main Functions contain the main features of our Free Spire.PDF for .NET and you can have brief information of it.

Frequently asked question for Free Spire.PDF of technical and function issues.

We guarantee one business day Forum questions Reply.

We guarantee one business day E-mail response.

Free Customized service for OEM Users.

Skype name: iceblue.support

Apply for a Free Trial License File.

To help you get started quickly, we offer free customized demos to our customers. Please contact support@e-iceblue.com for the free demo. Make sure the demo you want meets the below requirements.
  • It relates to our components stored on E-iceblue online store.
  • It costs less than 2 hours for us to complete it. If it costs more than 2 hours, please contact our sales@e-iceblue.com

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