Blog
How documents, images and browsers actually work under the hood — notes from the people who build the tools.
A photograph is two files in one: the picture, and a hidden record of where you were standing, when, and what you were holding. Here is what EXIF actually contains, how it escapes into other people's hands, and why the tool that removes it should never be one you upload to.
Most of what people call “editing a PDF” is just moving pages around — a lossless operation that needs no subscription and no upload. Here is when to do it, what actually changes in the file, and where the honest limits are.
Images are usually both the largest asset on a page and its Largest Contentful Paint element. Here is what Google measures, the four levers that matter in order of payoff, and the numbers to aim for.
JPG or PNG, 96 or 300 DPI, and why your last export came out blurry. The decisions that determine whether a converted PDF page looks professional or amateurish — with the numbers behind each one.
Why a 24 MB PDF still bounces off a 25 MB limit, how to find out what is actually making your file heavy, and a repeatable workflow that gets it under the limit without turning the text to mush.
A free online converter is a stranger's computer. Here is what happens to your file after you press upload, the four risks that follow, and how to check whether a tool really processes everything locally.
Free, private, browser-based utilities — pick one to get started.