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 Format
In the previous article of this series, we learn to use a text editor to structure and create a PDF file. The only problem... Before we can start hacking together our own simple PDF file, a quick look at the high level structure of a PDF is in... We have been publishing a series of articles entitled Understanding the PDF file format. In each article we try to take a specific PDF... People sometimes try to edit a PDF file by opening the file in a text editor. This very rarely works for 3 reasons. Firstly,... What is an OCR PDF file? Some PDF files are generated from scanning in pages as images, and these have their own unique quirks.... 
