PDF Component Objects

The following table contains the objects and their descriptions supported by the ImageGear PDF component:

IGPDEClip Object	Clip - a list of elements containing a list of Paths and Texts that describe a clip state. Clips can be created and built up with PDE Clip methods. Any PDE Element object can have Clip associated with it. Clip objects can contain PDE Containers and PDE Groups to an arbitrary level of nesting. This allows PDE Containers to be used to mark clip objects. PDE Groups inside PDE Clips that contain at least one PDE Text and no PDE Paths have a special meaning. All PDE Text objects contained in such a PDE Group are considered to be part of the same BT/ET block. This means that the union of these PDE Texts makes up a single clipping path-as opposed to the intersection of the PDE Texts. See Section 5.3 in the PDF reference for more information about BT/ET block.
IGPDEColorData Object	Fill in one of the following members of this union, then pass it to PDE ColorSpace creation routine. Please see section 7.10 of the PDF Reference Manual for information on color spaces.
IGPDEColorDataCalGray Object	CalGray color space.
IGPDEColorDataCalRGB Object	CalRGB color space.
IGPDEColorDataDeviceN Object	DeviceN color space.
IGPDEColorDataICCBased Object	ICC based color space.
IGPDEColorDataIndexed Object	Indexed color space.
IGPDEColorDataLab Object	Lab* color space.
IGPDEColorDataSeparation Object	Separation color space
IGPDEColorRange Object	Color range.
IGPDEColorSpace Object	ColorSpace - a reference to a color space used on a page in a PDF file. The color space is part of the graphics state attributes of a PDE Element.
IGPDEColorSpec Object	Color specification.
IGPDEColorValue Object	Color value.
IGPDEContainer Control	Container - a group of elements on a page in a PDF file. In the PDF file, containers are delimited by Marked Content BMC/EMC or BDC/EMC pairs. Every container has a Marked Content tag associated with it. In addition to grouping a set of elements, a BDC/EMC pair specifies a property list to be associated with the grouping. Thus a container corresponding to a BDC/EMC pair also has a property list dictionary associated with it. See Section 10.5 in the PDF reference for more information about Marked Content operators.
IGPDEContent Object	Content - modifiable content of a PDF page, which contains elements. Content may be obtained from an existing page or from a Form XObject.
IGPDEContentAttrs Object	Attributes of a PDE Content object.
IGPDEDash Object	Dash specification, as described in Table 4.8 in the PDF Reference. See Section 4.3.2 for more information on line dash patterns.
IGPDEFilterArray Object	Filter information for streams. Array of FilterSpec elements. Usually consists of 2 filter elements: text encoding and image compression.
IGPDEFilterSpec Object	Filter element in a filter array.
IGPDEFont Object	Font - A reference to a font used on a page in a PDF file. It may be equated with a font in the system.
IGPDEFontAttrs Object	Attributes of a PDE Font and a PDF SysFont.
IGPDEFontCreateFromSysFontParams Object	Parameters for PDE font creation.
IGPDEForm Object	Form - an element that corresponds to an instance of XObject Form on a page (or other containing stream such as another XObject Form or annotation form). The context associated with this instance includes the actual stream that represents the XObject Form and the initial conditions of the graphics state. The latter consists of the transformation matrix, initial color values, and so forth. It is possible to have two Forms that refer to the same XObject Form. The forms will exist at different places on the same page, depending on the transformation matrix. They may also have different colors or line stroking parameters. In the case of a transparency group, the opacity is specified in the gstate. Within a Form, each element has its own gstate (or is a container, place, or group object). These gstates are independent of the parent Form gstate. Form elements may have their own opacity. Content may be obtained from a Form to edit the form's display list.
IGPDEGraphicState Object	Attributes of a PDE Element or a PDE Text sub-element.
IGPDEGroup Object	Group - an in-memory representation of objects in Content. It has no state and is not represented in any way in a content stream (that is, Content). When used in a Clip, this object is used to associate Text objects into a single clipping object.
IGPDEImage Object	Image - an element that contains an Image XObject or in-line image. You can associate data or a stream with an image.
IGPDEImageAttrs Object	Attributes of a PDE Image object.
IGPDEPath Object	Path - an element that contains a path. Path objects can be stroked, filled, and/or serve as a clipping path.
IGPDEPlace Object	Place - an element that marks a place on a page in a PDF file. In a PDF file, a place is represented by the MP or DP Marked Content operators. Marked content is useful for adding structure information to a PDF file. For instance, a drawing program may want to mark a point with information, such as the start of a path of a certain type. Marked content provides a way to retain this information in the PDF file. A DP operator functions the same as the MP operator and, in addition, allows a property list dictionary to be associated with a place.
IGPDEPostScript Object	PostScript - an element representing in-line or XObject pass-through PostScript object. XObject PostScripts are listed in page XObject resources.
IGPDEPSAttrs Object	Attributes of a PDE PS object.
IGPDEShading Object	Shading - an element that represents smooth shading.
IGPDESoftMask Object	SoftMask- an object for creating and manipulating a soft mask in a PDF file.
IGPDEText Object	Text - an element representing text. It is a container for text as show strings or as individual characters. Each sub-element may have different graphics state properties. However, the same clip applies to all sub-elements of a Text. Also, the char path of a Text can be used to represent a clip.
IGPDETextItem Object	TextItem - a PDE element representing a text object.
IGPDETextState Object	Attributes of a PDE Text element.
IGPDEXGroup Object	XGroup - a transparency (XGroup) resource.
IGPDEXObject Object	XObject - an element representing an arbitrary XObject.
IGPDEXYZColor Object	XYZ color.
IGPDFAction Object	PDF action object, which is a task that performs when a user clicks on a link or a bookmark.
IGPDFAtom Object	Atom - a hashed token used in place of strings to optimize performance (it is much faster to compare Atoms than strings). Many methods use Atoms.
IGPDFAtomArray Object	Represents an array of PDF Atoms.
IGPDFAuthEventParams Object	Parameters used in the authorization event.
IGPDFBasArray Object	Basic Array - an array object is a one-dimensional collection of objects arranged sequentially. Unlike arrays in many other computer languages, PDF arrays may be heterogeneous; that is, an array's elements may be any combination of numbers, strings, dictionaries, or any other objects, including other arrays.
IGPDFBasBool Object	Basic Boolean - PDF provides boolean objects identified by the keywords True and False. Boolean objects can be used as the values of array elements and dictionary entries.
IGPDFBasDict Object	Basic Dictionary - a dictionary object is an associative table containing pairs of objects, known as the dictionary's entries. The first element of each entry is the key and the second element is the value. The key must be a name. The value can be any kind of object, including another dictionary.
IGPDFBasFixed Object	Basic Fixed - Fixed objects approximate mathematical real numbers, but with limited range and precision; they are typically represented in fixed-point, rather than floating-point, form.
IGPDFBasInt Object	Basic Integer - Integer objects represent mathematical integers within a certain interval centered at 0.
IGPDFBasName Object	Basic Name - A name object is an atomic symbol uniquely defined by a sequence of characters. Uniquely defined means that any two name objects made up of the same sequence of characters are identically the same object. Atomic means that a name has no internal structure; although it is defined by a sequence of characters, those characters are not "elements" of the name.
IGPDFBasNull Object	Basic Null - The null object has a type and value that are unequal to those of any other object. There is only one object of type null, denoted by the keyword null.
IGPDFBasString Object	Basic String - A string object consists of a series of bytes-unsigned integer values in the range 0 to 255. The string elements are not integer objects, but are stored in a more compact format.
IGPDFBookmark Object	PDF bookmark object, which allows the user to navigate interactively from one part of the document to another.
IGPDFClipEnumerateEventParams Class	Parameters for IGPDFCtl Control.ClipEnumerate Event.
IGPDFCtl Control	The control that you place in the user interface of your application, and which provides general ImageGear PDF Component functionality.
IGPDFDestination Object	PDF destination object represents a particular view of a page in a document.
IGPDFDoc Object	Document - the underlying PDF representation of a document. Through PDF Document, your application can perform most of the Edit Pages operations (delete, replace, and so on). Thumbnails can be created and deleted through this object. You can set and retrieve document information fields through this object as well.
IGPDFFixedMatrix Object	Matrix containing fixed numbers.
IGPDFFixedPoint Object	Point (in two-dimensional space) represented by two fixed numbers.
IGPDFFixedQuad Object	Quadrilateral represented by four fixed points (one at each corner). A quadrilateral differs from a rectangle in that the latter must always have horizontal and vertical sides, and opposite sides must be parallel.
IGPDFFixedRect Object	A rectangle represented by the coordinates of its four sides. A rectangle differs from a quadrilateral in that the former must always have horizontal and vertical sides, and opposite sides must be parallel.
IGPDFFont Object	PDF font object is used to draw text on a page.
IGPDFFontMetrics Object	PDF font metrics object is used to identify font metrics.
IGPDFFontStyle Object	PDF font style object is used to identify the style of the font used.
IGPDFLayer Object	Layer - a named object whose state can be toggled in a UI to affect changes in visibility of content.
IGPDFPage Object	Page - a single page in the PDF representation of a document. A page contains a series of objects representing the objects drawn on the page (Graphic), a list of resources used in drawing the page, annotations (Annotation), an optional thumbnail image of the page, and the beads used in any articles that occur on the page.
IGPDFPreflight Class	This class provides PDF preflight capabilities.
IGPDFPreflightReport Class	This class contains PDF preflight report in a tree form.
IGPDFPrintOptions Object	Used to control printing.
IGPDFSecurityData Object	PDF security data object describes data for the standard security handler.
IGPDFStream Object	Stream - a data stream that may be a buffer in memory, or an arbitrary user-written procedure. Typically used to extract or provide data.
IGPDFStreamReadEventParams Class	Parameters for the IGPDFCtl.StreamRead event.
IGPDFStreamWriteEventParams Class	Parameters for the IGPDFCtl.StreamWrite event.
IGPDFStyle Object	Style - provides access to information about the fonts, font sizes, and colors used in a Word.
IGPDFSysEncoding Object	SysEncoding - provides system encoding for a PDF file.
IGPDFSysFont Object	SysFont - a reference to a font installed in the host system. SysFont methods allow you to list the fonts available in the host system and to find a font in the system that matches a PDE Font, if it is present.
IGPDFSysFontEnumerateEventParams Class	Parameters for IGPDFCtl.SysFontEnumerate event.
IGPDFSysFontPlatData Object	PDF SysFont platform specific data.
IGPDFWord Object	Word - a word in a PDF file. Each word contains a sequence of characters in one or more styles (see Style).
IGPDFWordFinder Object	WordFinder - extracts words from a PDF file, and enumerates the words on a single page or on all pages in a document..
IIGPDEObject Interface	Object - base interface for all the PDE objects.
IIGPDEElement Interface	Element - base interface for the elements of a page display list (PDE content) and for clip objects. The general PDE element methods allow you to get and set general element properties.
IIGPDFBasObj Interface	Basic Object - basic PDF object interface. PDF supports eight basic types of objects: Boolean values Integer and Fixed (real) numbers Strings Names Arrays Dictionaries Streams The null object Objects may be labeled so that they can be referred to by other objects. A labeled object is called an indirect object.
IIGPDFDictionary Interface	PDF Dictionary interface.
IIGPDFLayerArray Inerface	PDF Layer Array interface.

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