In your browser
- Open the Visio Viewer.
- Drop your .vsd, .vsdx or .vsdm file on the page. Every page of the drawing appears, free, so you can check it before paying anything.
- Click PDF. The first time, it asks for a license: $19 once, then PDF and PNG downloads are unlocked in that browser for every drawing.
The PDF has every page of the drawing, at each page's own size, with the text kept as text, so you can search it and copy from it. It works on Windows, Mac, Chromebook and iPad.
With LibreOffice Draw (free)
If you'd rather install something: open the file in LibreOffice Draw, then File, Export as PDF. It's free. Check the result, because Visio 2013 and later drawings often export with black shapes or missing arrows from LibreOffice on its own. The Visio Viewer fixes those theme colours before LibreOffice renders the file.
With Visio
If someone near you has Visio, File, Export, Create PDF/XPS Document gives the most faithful result, since it's Microsoft's own renderer.
Tips
- Big diagrams: each page keeps its own size in the PDF, so a wide network diagram stays wide. Zoom in your PDF reader; the lines are vectors and stay sharp.
- Pictures instead of a PDF: for a slide or a document, the PNG download gives you one picture per page.
- Many pages: the browser shows the first 20 pages; the PDF has all of them.