Introduction.txt

Free Spire.PDF for .NET Main Features


Support Environment

Fully written in C# and also support VB.NET
Applied on .NET Framework 2.0, 3.5, , 4.0, .NET 5.0, .NET 6.0, .NET 7.0, .NETStandard, .NETCoreMonoAndroid and Xamarin.iOS application.
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

Convert Webpage HTML, HTML ASPX to PDF
Convert Image(Jpeg, Jpg, Png, Bmp, Tiff, Gif, EMF, Ico) to PDF
Convert Text to PDF
Convert RTF to PDF
Convert XPS to PDF
Convert PDF to SVG
Convert PDF to XPS
Convert PDF to Image
Convert PDF to Word
Convert PDF to Excel
Convert PDF to PowerPoint

Security

Encrypt PDF(Owner Passwords and User Passwords)
Decrypt PDF
Create PDF Digital Signature
Modify PDF Passwords(Owner Passwords and User Passwords)

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

Draw Image
Draw Special Shapes(lines, Rectangles, Circles, Arcs, Ellipses, Five-Pointed Star)
Read/Extract Images(Jpeg, Jpg, Png, Bmp, Tiff, Gif, EMF, Ico)

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
Extract Table from PDF

Bookmarks

Add Bookmarks
Add Child Bookmarks
Get Bookmarks
Get Child Bookmarks
Clear Bookmarks
Modify Bookmarks
Modify Child Bookmarks

List

Simple List
Ordered List
Multiple levels List

Header and Footer

Add Text in Header
Add Text in Footer
Add Image in Header
Add Image in Footer

Watermark

Add Text Watermark
Add Image Watermark
Modify Text Watermark
Modify Image Watermark

Links and Actions

Add Hyperlinks(Plain Link and Anchor Link)
Work with Action
Work with Javascript Action
Work with Action Chain
Work with Action Annotation

FormField

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

Pages

Add PDF Pages
Add Empty Page in PDF
Delete PDF Pages
Read/Extract PDF Pages
Set Page Number
Get Page Count
Paginate Pages
Set Page Transition
Set Page Label
Set Page Orientation
Set Page Transparency
Set Page Overlay
Create PDF Booklet
Draw PDF Barcode

Document

Set PDF Properties
Set PDF View Preference
Set PDF Template
Merge PDF Files
Split PDF File (by one page and any range of pages)