I very often print to PDF for documentation. What I often resort to in cases like this is selecting the important text (i.e. the actual article, the actual important information to save, but not the left or right sidebars etc.) and then choose "Only selection" when printing (using Ctrl+P in Chrome, choosing the printer "Save As PDF"). For some reason, when I do that, it's often much better formatted. Furthermore, the PDF will be smaller, as it will only contain the important part and not irrelevant text and images relating to other articles etc.