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
Every so often people send us files and ask why we cannot extract the text from them – I mean we can view the... This is part of a series on How to make your own PDF files. In the previous article of this series, we learn to... Because of its power and flexibility, the PDF file format is often used for Internal workflows. Sometimes it would be useful to embed your... Images are not stored inside a PDF file as Tiff or PNG or JPG images. They are stored as the binary pixel data along... This is part of a series on How to make your own PDF files. Before we can start hacking together our own simple PDF... 
