![]() ![]() ![]() ![]() marked-content operators that associate high-level information with graphics but do not affect the appearance.graphics state operators that do things such as selecting a font, selecting a color or transforming the coordinate system (more about that later).draw operators that draw curves, text and images.Operators can be divided into three groups: The graphics on a PDF page are described by a sequence of operators. Graphics can roughly be divided into three categories: curves, text and images. PDF graphicsĪ PDF document contains various types of information such as metadata (author, title, etc.), form fields, navigational data such as bookmarks, annotations such as comments, and last but not least, graphics. This article explains the basics of PDF graphics and how graphics can be edited if you really have to. Nevertheless, there may be circumstances - such as when you don't have access to the source format - when editing a PDF is a requirement. PDF is not designed for editing it is designed as an end format much like ink on paper. A question that I often hear is: "How can I change the graphics of my PDF, such as replacing text with some other text or replace a logo with another logo?" In general this is not a good idea. ![]()
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