eSign Tool - Digital Signature Creator

Add legally-binding signatures to PDFs, Word documents & images — online, fast, and secure.

Upload Document
📄
Click or drag & drop to upload (PDF, DOCX, JPG, PNG, TXT)
Max 10MB
Browse Files
Signature (one per file)
Medium
Place & Export
Save your signature, enable Signature Mode, click a spot on the preview to place it. Only one signature allowed per file. You can drag / resize the placed signature.
Document Preview
Upload a document to preview and add your signature
Tip: For Word files we provide an in-browser preview (mammoth). Final download will be a PDF with signature applied.

About Online eSign Tools — Why they matter

In today’s digital-first world, electronic signatures are no longer a luxury — they’re essential. Online eSign tools let individuals and businesses sign contracts, forms, invoices, NDAs, and other important documents quickly and securely without printing, signing by hand, scanning, or mailing physical copies. This reduces the time to sign, speeds up business processes, and improves record-keeping while lowering environmental impact.

A quality eSign solution balances ease-of-use with strong security and accuracy. It should allow users to preview documents, place signatures precisely, and download a standardized signed output — typically a PDF — that can be shared or archived. In many jurisdictions, electronic signatures made with proper intent and record-keeping are legally binding, but for highly sensitive matters (e.g., property transfers) it's recommended to follow local rules or consult legal counsel.

Toolziod’s eSign tool focuses on privacy-first, in-browser processing: documents are rendered and signed directly in your browser using proven libraries, so files never need to be uploaded to a server. That design keeps your data under your control and reduces the risk of leaks or accidental storage. It also ensures faster previews and reduced server costs.

This tool supports the most common formats — PDF, Word (DOCX), images (JPG/PNG), and text. For Word files, our preview uses a browser conversion so you can view content before signing. For images and PDFs, signatures are placed with pixel-accurate mapping so the signature appears exactly where you click. When you download, the tool produces a PDF with the signature embedded at the correct location and scale.

Practical use-cases include signing employment offers, client agreements, receipts, or approving images and creative assets. Because the tool runs entirely online (via CDN and browser APIs), you can use it from any device — desktop, tablet, or mobile — and share signed PDFs instantly by email or cloud storage. Always keep an original copy and check regional legal rules for critical documents.

Frequently Asked Questions
Is my document uploaded to a server? +
No — documents are processed in your browser. The tool uses client-side libraries to preview and add signatures. The final PDF is generated locally in your browser. We do not automatically upload files to our servers.
Are electronic signatures legally binding? +
In many countries, yes — electronic signatures can be legally binding if they reflect the signer’s intent and meet any jurisdictional requirements. For high-value or legal-critical transactions, consult a lawyer for jurisdiction-specific guidance.
What formats are supported? +
We support PDF, DOCX (Word), JPG/PNG (images), and TXT. For Word files we show an in-browser preview. The downloaded signed file is standardized to PDF for easier sharing and archiving.
Why is the final download always PDF? +
PDF is an industry standard for preserving layout and content across devices. Converting everything to PDF ensures the signature appears exactly as placed and that recipients can open the file without needing specific editors.
Can I place multiple signatures? +
This version is configured for one signature per file to simplify positioning and ensure consistent export. If you need multiple-signature workflows, we can extend the tool to support that with role assignment and audit trails.