Formatting attributes and page layout specifications can be integrated into the content of a PDF file by accessing the features of widely used PDF authoring and editing applications.
pdf document normally consists of text, visual elements like images, charts and tables, annotations, bibliographies, indices, footnotes and endnotes among others. Developed by Adobe Systems, the PDF format was implemented in order to provide wider cross compatibility support for viewing and sharing content across widely used systems. PDF files are generally classified as data files, and these documents are commonly known as portable document format files.