该方法根据参数获取图片实例的方式比较多，例如：Image，PdfTemplate，PRIndirectReference，byte[]，Stream，string ，Uri等等，以上给出了根据Image和byte[]获取ItextSharp的image实例。
4.Image的ScaleAbsolute()：设置图片信息。
public void ScaleAbsolute(float newWidth, float newHeight)
{
this.plainWidth = newWidth;
this.plainHeight = newHeight;
float[] matrix = this.Matrix;
this.scaledWidth = matrix[6] - matrix[4];
this.scaledHeight = matrix[7] - matrix[5];
this.WidthPercentage = 0f;
}
以上代码可以看出，设置图片的信息主要包括高度、宽度、排列等信息。
5.Anchor类的Process()方法：重写链接的处理方法。
public override bool Process(IElementListener listener)
{
try
{
bool flag = (this.reference != null) && this.reference.StartsWith("#");
bool flag2 = true;
foreach (Chunk chunk in this.Chunks)
{
if (((this.name != null) && flag2) && !chunk.IsEmpty())
{
chunk.SetLocalDestination(this.name);
flag2 = false;
}
if (flag)
{
chunk.SetLocalGoto(this.reference.Substring(1));
}
else if (this.reference != null)
{
chunk.SetAnchor(this.reference);
}
listener.Add(chunk);
}
return true;
}
catch (DocumentException)
{
return false;
}
}
以上方法可以看到，该方法是在本类中被重写，用以处理链接的相关信息。
6.PageSize：设置纸张的类型。
public class PageSize
{
// Fields
public static readonly Rectangle _11X17;
public static readonly Rectangle A0;
public static readonly Rectangle A1;
public static readonly Rectangle A10;
public static readonly Rectangle A2;
public static readonly Rectangle A3;
public static readonly Rectangle A4;
public static readonly Rectangle A4_LANDSCAPE;
public static readonly Rectangle A5;
public static readonly Rectangle A6;
public static readonly Rectangle A7;
public static readonly Rectangle A8;
public static readonly Rectangle A9;
public static readonly Rectangle ARCH_A;
public static readonly Rectangle ARCH_B;
public static readonly Rectangle ARCH_C;
public static readonly Rectangle ARCH_D;
public static readonly Rectangle ARCH_E;
public static readonly Rectangle B0;
public static readonly Rectangle B1;
public static readonly Rectangle B10;
public static readonly Rectangle B2;
public static readonly Rectangle B3;
public static readonly Rectangle B4;
public static readonly Rectangle B5;
public static readonly Rectangle B6;
public static readonly Rectangle B7;
public static readonly Rectangle B8;
public static readonly Rectangle B9;
public static readonly Rectangle CROWN_OCTAVO;
public static readonly Rectangle CROWN_QUARTO;
public static readonly Rectangle DEMY_OCTAVO;
public static readonly Rectangle DEMY_QUARTO;
public static readonly Rectangle EXECUTIVE;
public static readonly Rectangle FLSA;
public static readonly Rectangle FLSE;
public static readonly Rectangle HALFLETTER;
public static readonly Rectangle ID_1;
public static readonly Rectangle ID_2;
public static readonly Rectangle ID_3;
public static readonly Rectangle LARGE_CROWN_OCTAVO;
public static readonly Rectangle LARGE_CROWN_QUARTO;
public static readonly Rectangle LEDGER;
public static readonly Rectangle LEGAL;
public static readonly Rectangle LEGAL_LANDSCAPE;
public static readonly Rectangle LETTER;
public static readonly Rectangle LETTER_LANDSCAPE;
public static readonly Rectangle NOTE;
public static readonly Rectangle PENGUIN_LARGE_PAPERBACK;
public static readonly Rectangle PENGUIN_SMALL_PAPERBACK;
public static readonly Rectangle POSTCARD;
public static readonly Rectangle ROYAL_OCTAVO;
public static readonly Rectangle ROYAL_QUARTO;
public static readonly Rectangle SMALL_PAPERBACK;
public static readonly Rectangle TABLOID;
// Methods
static PageSize();
public PageSize();
public static Rectangle GetRectangle(string name);
}
