What implements IMargins in IronPDF?

Concrete implementors of IMargins in IronPDF include ChromePdfRenderOptions. Code that accepts IMargins works uniformly across all implementors, with a cast to the concrete type only required when type-specific behavior is needed.

How do you use IMargins in C# code?

Accept IMargins as a parameter or return type in C# code that needs to work uniformly across IronPDF implementors. The interface defines the contract; concrete behavior is provided by the implementor returned at runtime.

What is the difference between IMargins and a concrete implementor?

IMargins is the interface contract; its concrete implementors carry the actual behavior. Reference IMargins when writing code that should work across multiple implementors; use a concrete type when a single implementor's behavior is required.

Which namespace and assembly contain IMargins?

IMargins is in the IronPdf namespace, shipped in IronPdf.dll. Concrete classes such as ChromePdfRenderOptions implement it.

Interface IMargins

Document margin values, in millimeters

Namespace: IronPdf

Assembly: IronPdf.dll

Syntax

public interface IMargins

IMargins is what IronPDF hands back when C# code reads PDF generation. It represents document margin values, in millimeters, so code can work with PDF generation uniformly across implementors rather than binding to a concrete type.

Concrete implementors include ChromePdfRenderOptions, IronPDF concrete implementor. Code that accepts IMargins works uniformly across these implementors, so applications can read or configure C# PDF features without binding to a specific concrete type.

Most of the usable surface is inherited. The members that carry everyday use of this contract are MarginBottom, MarginLeft, MarginRight, MarginTop; consult these first when implementing or consuming IMargins. The custom margins walks through typical use in the IronPDF C# documentation.

using IronPdf;

// IMargins is consumed as the API surface for the family of implementors
void Consume(IMargins target)
{
    // Use members defined on the interface; concrete behavior follows the implementor
}

For collection-wide operations and end-to-end examples, see the IronPDF C# documentation for related guides. For collection-wide operations on IMargins instances, the IronPDF C# documentation lists the relevant container types and their methods. Concrete behavior depends on which implementor of IMargins is returned at runtime; consult the specific class reference for type-specific members. Polymorphic access through IMargins lets code work uniformly across the family of implementors, with a cast required only when type-specific behavior is needed. The reference tables below list the full set of members defined on IMargins along with any inherited members exposed through the contract. In a typical IronPDF C# workflow, IMargins appears as a parameter or return type at the boundary between the application and the IronPDF API. See the methods table below for the complete set of members defined directly on IMargins. Implementing IMargins directly in application code is uncommon; the typical pattern is to consume instances returned from the IronPDF API.

Properties

MarginBottom

Bottom Pdf "paper" margin in millimeters. Set to zero for border-less and commercial printing applications.

Default value is 25.

Declaration

double MarginBottom { get; set; }

Property Value

Type	Description
System.Double

MarginLeft

Left Pdf "paper" margin in millimeters. Set to zero for border-less and commercial printing applications.

Default value is 25.

Declaration

double MarginLeft { get; set; }

Property Value

Type	Description
System.Double

MarginRight

Right Pdf "paper" margin in millimeters. Set to zero for border-less and commercial printing applications.

Default value is 25.

Declaration

double MarginRight { get; set; }

Property Value

Type	Description
System.Double

MarginTop

Top Pdf "paper" margin in millimeters. Set to zero for border-less and commercial printing applications.

Default value is 25.

Declaration

double MarginTop { get; set; }

Property Value

Type	Description
System.Double