Sign PDF Online
Upload your PDF and add signatures, text, initials, dates & more — completely free.
Upload Your PDF
Drag & drop your PDF here, or click to browse your files
Pages
Add Signature
Click to upload PNG or JPG
Transparent background recommended
How to Sign a PDF Online
Upload Your PDF
Drag & drop your PDF file into the upload area or click "Choose PDF File" to browse. Supports files up to 20 MB.
Create Your Signature
Type your name in a cursive font, draw freehand, upload an image, or capture via camera — choose whichever suits you best.
Place & Adjust
Drag your signature to the exact position. Resize, rotate, or add additional elements like text, date, initials, or stamps.
Download Signed PDF
Click "Download Signed PDF" to save the finished document. Original quality is fully preserved. No watermarks added.
Sign PDF Online — Key Features
4 Signature Methods
Type in beautiful cursive fonts, draw freehand with your mouse or finger, upload a PNG/JPG image, or capture directly from your camera — all in one tool.
Full Annotation Toolkit
Beyond signatures — add text, initials, today's date, checkmarks, company stamps, and custom images. Every element is fully draggable, resizable, and rotatable.
Multi-Page PDF Support
View and navigate all pages with a thumbnail sidebar. Sign different pages independently, then export the entire document as a single signed PDF.
100% Browser-Based Security
Your PDF never leaves your device. All processing happens entirely in your browser using JavaScript. There is zero server upload, guaranteeing complete privacy.
Zoom & Page Controls
Zoom in/out, fit to width, or fit to page for precision placement. Navigate pages with previous/next buttons or click any page thumbnail directly.
Mobile & Touch Friendly
Fully optimized for any screen size. Draw your signature with your finger on a smartphone or tablet. Works seamlessly on Chrome, Safari, Firefox, and Edge.
Frequently Asked Questions
Yes, completely free! Sign PDF Online by Toolszu has no hidden charges, no subscription plans, and adds zero watermarks to your signed documents. No account or registration is ever required.
Absolutely. Your PDF is processed entirely within your browser using JavaScript. It is never uploaded to any server, meaning your documents remain 100% private and confidential at all times.
Yes! You can add as many signatures, text blocks, initials, dates, checkmarks, stamps, and images as you need. Each element is individually draggable, resizable, and rotatable so you have full control over placement.
This tool accepts PDF files only (up to 20 MB per file). For uploaded signature images, both PNG and JPG formats are accepted. We recommend using a transparent PNG for the cleanest, most professional-looking signature result.
Electronic signatures can be legally valid in many jurisdictions under laws such as eIDAS (EU) and the ESIGN Act (US). However, for legally critical or regulated documents, we recommend consulting a legal professional to confirm the specific requirements for your use case.
Yes, fully. The tool is designed to be mobile-responsive and touch-friendly. You can draw your signature directly with your finger on any smartphone or tablet. It works in all modern browsers including Chrome, Safari, Firefox, and Edge.