How can I sign PDF on Windows PC without online tools?

When a PDF form only requires a handwritten signature, converting the document or uploading it to an online service is overkill. Xournal++ allows you to sign the existing PDF directly on your Windows 10 PC by drawing on the page. This is a highly practical alternative to the usual how to sign PDF online methods, keeping the sensitive document safely on your own computer.

You can use a mouse or a drawing tablet to place the signature exactly where it belongs. Because the original PDF acts as the background, there is no need to recreate the form or alter its layout.

How to sign PDF online without uploading your document:

[ 1 ] Launch Xournal++ and select File > Annotate PDF to open your form.

[ 2 ] Select the Pen Tool from the toolbar and choose an appropriate pen color and thickness.

[ 3 ] Draw your handwritten signature with a mouse or stylus. Drag to adjust the placement as needed.

[ 4 ] Select File > Export as PDF to save the signed document as a new file.

This keeps your documents completely offline, but note that it creates a visual signature rather than a certificate-based digital one.