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Chapter 3. Syntax > Content Streams and Resources

3.7. Content Streams and Resources

Content streams are the primary means for describing the appearance of pages and other graphical elements. A content stream depends on information contained in an associated resource dictionary; in combination, these two objects form a self-contained entity. This section describes these objects.

3.7.1. Content Streams

A content stream is a PDF stream object whose data consists of a sequence of instructions describing the graphical elements to be painted on a page. The instructions are represented in the form of PDF objects, using the same object syntax as in the rest of the PDF document. However, whereas the document as a whole is a static, random-access data structure, the objects in the content stream are intended to be interpreted and acted upon sequentially.


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