How to Sign a PDF Electronically for Free
This guide walks through the job step by step, the common mistakes that waste time, and the exact free tool to use — no sign-up and no file upload, because the tool runs in your browser.
The fastest method
Open the tool linked below, add your file, keep the default settings for a first pass, and download the result. Check the output, then adjust settings only if you need a smaller file, a different page range or a different placement.
Tools used in this guide
Tips
Always keep the original file until you have opened and checked the result. For private documents, prefer tools that process files locally — like every tool on PDFKitFree — instead of uploading them to a server.