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14 gru 2018 · PDF | Electronic text can be defined on two different, though interconnected, levels. On the one hand, electronic text can be defined by taking the... | Find, read and cite all the research...
organize the data in an appropriate manner. The term data structure is used to denote a particular way of organizing data for particular types of operation. These notes will look at numerous data structures ranging from familiar arrays and lists to more complex structures
In this chapter, we leave behind the bits and bytes of the PDF file, and consider the logical structure. We consider the trailer dictionary, document catalog, and page tree. We enumerate the required entries in each object. We then look at two common structures in PDF files: text strings and dates.
2 cze 2009 · PDFBox is a PDF parsing tool that you can use for extracting text and images on top of which you can define your custom rules for parsing. However, for parsing PDFs you need to have some prior knowledge of the general format of the PDF file.
e-text (from "electronic text"; sometimes written as etext) is a general term for any document that is read in digital form, and especially a document that is mainly text. For example, a computer-based book of art with minimal text, or a set of photographs or scans of pages , would not usually be called an "e-text".
PDF files may contain a variety of content besides flat text and graphics including logical structuring elements, interactive elements such as annotations and form-fields, layers, rich media (including video content), three-dimensional objects using U3D or PRC, and various other data formats.
26 wrz 2020 · Dive into the basic structure of PDF files and learn how to protect against shellcode attacks. Stay updated with Infosec.
