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Introduction Welcome to a new series on our blog! We get lots of inquires about solving problems with PDF files so we will be... Introduction Most web sites are run on servers which use the Apache software. This offers some very useful features for websites. For example, it... In addition to the standard (F11) full-screen modes in web browsers, there is now also a way to enable full screen using JavaScript, providing... What is PNGQuant? PNGQuant is a free to use, open source (available under a BSD-like license) command line utility and library for converting PNG... Annotator.js is an open-source (available on GitHub) JavaScript library created by the Open Knowledge Foundation that allows you to add annotations to web pages....