General Objects

This section describes a group of objects that provide access to PDF document's components such as metadata, pages, fonts, etc. These objects and methods allow applications to manipulate the PDF content and data. Some of the objects allow you to work with host system fonts and encodings, and the supplementary objects such as IGPDFAtom Object and IGPDFStream Object used to simplify and optimize working with PDF content.

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

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.
IGPDFAuthEventParams Object	Parameters used in the authorization event.
IGPDFBookmark Object	PDF bookmark object, which allows the user to navigate interactively from one part of the document to another.
IGPDFDestination Object	PDF destination object, which 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.
IGPDFLayer Object	PDF layer object represents 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.
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.
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.
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..