Showing posts from March, 2023

Unlocking the Secrets of PDFs: Exploring the Hidden Worlds of Page Boxes

  There are a number of boxes that help establish the dimensions, positioning, and viewable content for a PDF document. Here are some of the most important boxes: MediaBox: The MediaBox defines the dimensions of the entire page. It establishes the size of the physical medium on which the content will be displayed or printed. The MediaBox is specified by four coordinates (llx, lly, urx, ury), representing the lower-left and upper-right corners of the rectangle. CropBox: The CropBox determines the region of the page to be displayed or printed. By default, the CropBox is the same size as the MediaBox. However, it can be smaller or have different dimensions to remove any unwanted content from the final output. The CropBox is also defined by four coordinates (llx, lly, urx, ury). BleedBox: The BleedBox is used in professional printing. It defines the region to which the contents of the page should be clipped when the final output is being trimmed to its finished size. It usually extends be