Invented by Adobe Systems over 20 years ago, the Portable Document Format (PDF) is now an open standard for electronic document exchange maintained by the International Organization for Standardization (ISO). When you convert documents, forms, graphics, and web pages to PDF, they look just like they would if printed.
PDF
Recently I have been working on a problem with SVG & the HTML5 Canvas that causes bad looking output in some of our files.... Developers hoping to extract content from PDF documents whilst maintaining the structure of the text should follow this tutorial. Some (but not all) PDF... 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... A PDF file are designed to be resolution independent – they are defined using resolution independent units so that the page will always appear... 
