Sign PDF, Add signature to PDF, free online
Create your digital signature and place it directly in the PDF. Draw, type, or upload an image. 100% in browser, your PDF is not uploaded.
Create signature
Upload signature image
PNG with transparent background recommended
Sign PDF in 3 steps
Create signature
Draw, type, or upload an image of your signature.
Create signature
Draw, type, or upload an image of your signature. Click on a page to place it.
Download
Click "Download PDF", the signature is embedded directly in your browser.
Digital PDF signature, Sign documents online
With the signature tool from PDF Monster, you can add your personal signature directly to any PDF file, free, without registration, and entirely in the browser. Whether you want to sign a contract, fill out a form, or sign a power of attorney: Your digital signature is created in seconds and permanently embedded in the PDF.
You have three options to create your signature: Draw it with a mouse, trackpad, or finger on a touchscreen, type your name and choose from four handwriting fonts, or upload an image of your handwritten signature. Then place the signature with a click on any page, including dragging and scaling. The entire processing takes place locally in your browser. Your PDF is never uploaded to a server, ensuring maximum data security and full GDPR compliance.
Your data is safe with us
Data security is our top priority at PDF Monster. When signing PDFs, your document never leaves your computer, all processing happens directly in the browser.
100% local processing
Your PDF is not uploaded. The signature is embedded entirely in your browser via JavaScript. No server sees your document.
No registration required
No account, no email address, no hidden costs. The tool is instantly usable without disclosing any personal data.
GDPR-compliant
Since no data is transmitted, usage is fully privacy-compliant. Ideal for sensitive documents and confidential contracts.
Permanently embedded
The signature is firmly integrated into the PDF and is visible in every PDF reader, Adobe Acrobat, Foxit, Preview, and all others.
Typical use cases for PDF signing
Sign contracts
Sign employment contracts, purchase agreements, or service agreements directly on screen and send them back by email, without printing and scanning.
Fill out forms
Add your signature to official forms, applications, and certificates. Ideal for administrative processes that require a signature on the document.
Confirm offers
Sign quotes and proposals and send them back to the client immediately. Saves time and speeds up the business process.
Rental agreements
Digitally sign rental agreements and handover protocols. Convenient for tenants and landlords who want to finalize the contract quickly.
Powers of attorney
Add your signature to advance directives, bank authorizations, or representation powers, for legally relevant documents.
Applications
Professionally sign cover letters and resumes. A personal signature gives your application a professional touch.
Why use PDF Monster to sign?
3 methods
Draw with mouse/finger, type your name, or upload an image.
Free placement
Place the signature anywhere in the document via click or drag & drop.
100% Secure
SSL encryption, automatic deletion after 1 hour.
Permanent
The signature is permanently embedded in the PDF.
Frequently asked questions about PDF signing
How can I sign?
You have three options: draw with a mouse or finger, type your name in a handwriting font, or upload an image of your signature.
Is the signature legally valid?
For many business purposes, yes. For official or government documents, please check the specific requirements, as qualified electronic signatures may sometimes be required.
Can I save my signature?
Yes, your signature is stored locally in the browser and can be reused for future documents. It is not stored on our servers.
Can I sign in multiple places?
Yes, place the signature as many times as you want at different locations in the document. Each placement can be individually adjusted in size and position.
Is my data stored?
No, everything is processed locally in your browser and automatically deleted after the session. Your signature remains private.
Sign PDFs online, no software, directly in your browser
PDF Monster offers you a complete collection of free PDF tools. In addition to signing PDFs, you can also edit your documents with the PDF editor, protect sensitive files with a password, or add a watermark. All tools work directly in your browser, are GDPR-compliant, and require no installation or registration.