Document Preview

You know the feeling: someone sends you a file and you do not have the program that opens it. A PDF invoice, an image in an exotic format, a Markdown file, a code snippet. The document preview is the universal viewer that solves exactly this problem: it displays a wide range of file types right in the browser, without installing anything and without the file leaving your device.

PDFs you can flip through comfortably - page by page or all at once - with zoom, page navigation and a print function. Images you view with continuous zoom and can rotate, whether JPG, PNG or a less common format. For Word, Excel and PowerPoint files the preview shows the metadata and content, so you quickly see what is inside.

More technical files are covered too: Markdown is rendered rather than shown as raw text, and source code gets syntax highlighting so it is readable. That makes the document preview a practical tool for anyone juggling mixed file types without opening a separate program for each.

Compare mode is a highlight: place two files side by side and check differences at a glance - two versions of a document, two images, a before and after. For focused reading there is a fullscreen mode, and whoever prefers light documents on a dark background switches on a dark backdrop.

The most important thing last: everything stays local. The files are opened and displayed in your browser, nothing is uploaded to a server. That is fast, works safely even with sensitive documents and fits the rest of Werkzeu.ge. Together with the Aktenschrank you get a seamless chain: file it there, view it here, without a detour through third-party viewers.