ตัวแปลงไฟล์ออนไลน์ฟรี PDF เป็น LRF

PDF is an electronic document format designed by Adobe Systems using some language features PostScript. The official program for viewing documents in this format, Adobe Reader. Most often, PDF-file is a combination of text with raster and vector graphics and text forms, scripts written in JavaScript and other types of items.

Is a format developed by Sony for its proprietary Sony Reader devices. Files in this format may contain text and images. The format is XML-based.