Latest release
released Yesterday

100% .NET managed code
Verifiable assembly (PEVerify)
Write to disk or memory
Write directly to an HTTP connection, without writing code
Read from disk or memory
Create document properties
Write document properties as XMP metadata
Headers and footers with CSS3 page counters and page traits (odd, even, etc.)
Version 4.01 is supported, see below for details.
Deprecated properties are picked up correctly
Version 1.0 and 1.1 are supported, see below for details.
Deprecated properties are picked up correctly
Level 2.1 is supported, see below for details
CSS3 page counter
Parsing errors and handled conform the rules specified.
All selectors, inluding Univeral, Descendant, Child, Adjacedant, Attribute and Pseudos (like :first-letter)
Cascade and Ineritance is fully supported, including the @import rule and !important
Custom user stylesheets can be used
Box model is fully supported, including collapsing margings.
Positioning schemes: Normal flow, floats and absolute positioning
Generated content, automatic numbering and lists are supported
Page breaks are honored
Aural style sheets
Direction and Unicode-bidi
Supported image types: BMP, GIF, JPEG, TIFF, PNG
Vector graphics: SVG
Vector graphics: EMF, WMF, PDF
Supported elements: form, input, button, select, optgroup, option, textarea, isindex, label, fieldset and legend
Convert (multiline) text fields, check boxes, radio button, list boxes and combo boxes
Buttons: submit (submit action), reset (reset action) and regular button (actionless)
14 standard PDF fonts
TrueType fonts (.ttf)
TrueType Collection fonts (.ttc)
TrueType subset embedding
Security / Encryption
40, 128 and 256 bit encryption
Set user and owner password
Set user privileges such as allow print
Create viewer preferences
Convert links into internal destinations
Convert links into remote destinations
Convert links into named destinations
Supported Platforms
ASP.NET support
ActiveX / COM support
.NET 1.0, 1.1 support
.NET 2.0, 3.0, 3.5, 4.0 support
64-bit architecture support
Mono (any platform)