Sign PDF
Add electronic signatures to your PDF document by drawing, typing, or uploading a signature image locally.
Signatures Toolbox
Selected: document.pdf
PNG/JPG. Transparent preferred.
Your Signatures
Loading PDF pages for signature editor...
Embedding signatures and rebuilding PDF locally...
All calculations are run locally inside your browser context. Please do not close this tab.
Task Completed successfully
Your new file is ready to download.
Executed 100% locally on your browser
When you upload files, they are read as binary arrays in your browser's sandboxed RAM. We use high-performance WebAssembly engines and Client APIs to execute all processing locally. No files are sent to our servers, keeping your documents 100% confidential and secure.
Modifique y refine sus documentos PDF fácilmente. Nuestra herramienta Sign PDF proporciona ajustes de alta fidelidad y ediciones estructurales localmente en su dispositivo.
How to use our free Sign PDF tool
Upload your agreement
Select the PDF file you need to sign and wait for the page grid to render.
Create your signature
Draw your signature, type it using handwriting fonts, or upload an image file of your signature.
Place on the document
Click on the pages to drop your signature. Drag it to reposition and pinch/drag corners to resize.
Export signed PDF
Click the 'Save PDF' button. The signature is rendered into the document layer before download.
Why Use PDFVoid Sign PDF?
100% Local y Seguro
Todas las operaciones se ejecutan en tu navegador. Los archivos nunca se suben.
Sin límites de uso
Procesa todos los documentos que necesites. Sin registro, pagos ni marcas de agua.
Velocidad instantánea
Utiliza la potencia de tu CPU para procesar archivos al instante, eliminando esperas.
Frequently Asked Questions
Is my signature saved on PDFVoid's servers?
No, PDFVoid does not store your signature or your documents on any server. The signature drawing is processed client-side and immediately merged into the downloaded PDF.
Can I sign PDFs on my tablet or smartphone?
Yes! PDFVoid is optimized for mobile touchscreens. You can draw your signature using your finger or a stylus directly on your phone or tablet.
Is an electronic signature from PDFVoid legally binding?
Yes, electronic signatures placed on documents are legally recognized in most jurisdictions (such as the ESIGN Act in the US and eIDAS in the EU) for standard business contracts, approvals, and agreements.