Sign PDF — Add Signature to PDF Online for Free
Place your signature anywhere on a PDF without printing or scanning. Draw, type, or upload — done in under a minute, no account needed.
Use cases
- Sign a freelance contract on your phone without printing or scanning a single page
- Add your signature to a PDF lease agreement at midnight before a deadline
- Counter-sign a supplier agreement sent by email and forward it back instantly
How to sign a PDF
- 1Upload the PDF document you want to sign
- 2Draw your signature with mouse or finger, or upload a signature image
- 3Drag the signature to the correct position and resize as needed
- 4Download the signed PDF document
Features
- Draw signature with mouse or finger on touch devices
- Upload a ready-made signature image (PNG, JPG)
- Precise placement and scaling of the signature on the page
- Processed in the browser — document never sent to a server
Why sign PDFs here instead of other tools?
Sign PDF online free — no account, no software
Sign PDF documents online for free without creating an account or installing any software. Works on Windows, Mac, iPhone, and Android — any device with a browser is all you need.
Your signature stays on your device
The signature you draw or upload is stored only in your browser's local storage. It is never sent to our servers. When you clear site data, it is gone completely.
Draw, type, or upload — any signature style
Most tools force one signature method. Here you can draw freehand with a mouse or finger, or upload a PNG of your handwritten signature. PNG with a transparent background gives the cleanest result.
Common problems
Drawn signature is too faint or thin
Increase line width in the drawing settings and use a dark color before drawing.
Uploaded signature has a white background
Save the signature as PNG with a transparent background for a clean result that blends with the document.
Signature position shifted in the downloaded PDF
Position and resize the signature on the page before downloading — placement is locked at export time.
FAQ
Is this a legally binding signature?
This is a simple graphic signature — an image embedded into the PDF. For legally binding e-signatures, use a qualified digital signing service.
How do I draw a clean signature?
Use a mouse slowly or a stylus on a tablet for the most natural result. You can also upload a photo of your handwritten signature on a white background.
Can I sign multiple places in a document?
Yes, you can add multiple signatures on different pages of the document.
Can I save my signature for reuse?
Signature data is stored locally in your browser and available until you clear the site data.
Can I sign a password-protected PDF?
No. First remove the protection using the 'Decrypt PDF' tool, then add your signature.
What image formats can I upload as a signature?
PNG and JPG are supported. PNG with a transparent background gives the cleanest result — the signature blends naturally with the document.
How do I sign a PDF on Mac or Windows without extra software?
Open this page in any modern browser — Chrome, Firefox, Edge, or Safari. No installation required on either Mac or Windows.
What is the difference between an electronic signature and a digital signature?
An electronic signature (what this tool provides) is an image of your signature placed on the document — legally valid for most agreements under the EU eIDAS regulation and US ESIGN Act. A digital signature is cryptographic and includes a certificate from a trusted authority, required for regulated industries like healthcare or government contracts.
Related Tools
Add Watermark
Add a text watermark to PDF pages
Page Numbers
Add page numbers to a PDF document
Encrypt PDF
Protect a PDF file with a password
Digital Sign PDF
Add a digital signature with SHA-256 hash to verify PDF integrity
Fill PDF Form
Fill interactive PDF form fields: text, checkboxes, dropdowns
Stamp PDF
Add a text stamp (DRAFT, APPROVED, CONFIDENTIAL) to PDF pages