Portable Document Format (PDF) is a file format used to present documents in a manner independent of application software, hardware, and operating systems.
PDF file
Mark has previously written about how to edit PDF files by adding a second reference table, and Daniel made a whole series on making... In theory this is a really easy question to answer for non-Compressed PDF files. There is a reference table to all the PDF objects... A PDF file contains a couple of key pointers. One of them is a pointer to the start of the table which describes the... A PDF file consists of a ‘dump’ of PDF objects and a reference table defining where they are located in the PDF file and... Every glyf inside a PDF file can have a display value and a different extraction value. This is useful because often you need to... Text is defined in the PDF file format as a display value (normally what you see onscreen) and an extraction value. It is useful... 
