Sign PDFs electronically — draw or upload your signature, add stamps, and fill form fields. Sign documents without printing.
Drop PDF here or click to open
Supports PDF files up to 100MB
Drag and drop or click to select your PDF file.
Draw your signature or upload an image, then place it on the document.
Download your signed document ready for sharing.
Use this PDF signature tool when you need to sign a PDF online, add an electronic signature to a PDF, or place a reusable signature image on a contract, form, permission slip, or approval document.
You can draw your signature, type your name with a signature style, or upload a transparent PNG signature. After placing it on the page, resize and position it before downloading the signed PDF.
Yes. OnePDFs is free to use, requires no account, and does not add an extra OnePDFs branding watermark; watermark tools add only the watermark you choose.
Your files stay on your device and are processed locally in your browser; no upload to our PDF processing service is required. A browser copy can remain in this site's IndexedDB until you clear site data or the browser evicts it.
Three methods: (1) Draw your signature with mouse or touchscreen, (2) Type your name and choose a signature style, (3) Upload a signature image (PNG with transparent background works best).
This tool adds a visible signature appearance; it does not verify identity or create a certificate-based digital signature. Whether that appearance is accepted depends on the parties' intent, available evidence, jurisdiction, and document type. For regulated or high-value transactions, confirm the required method with the recipient or a qualified adviser.