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PDF Tool
Smart PDF Signer
Preview a PDF, detect signature zones, drag a signature into place, and export a signed document with original formatting preserved.
Smart Sign PDFUpload a PDF to begin
Smart PDF Signer
Sign PDF in five steps.
Upload a PDF, select a saved signature, place it accurately, add date/text/initials, and export a signed PDF with the original document preserved.
1. Upload PDF2. Select Signature3. Export Signed PDF
Saved SignaturesChoose from Lazy Signature Studio or upload one here.
Need a signature?Create one in Lazy Signature Studio ->No signature saved yet.Create one in 30 seconds using Lazy Signature Studio.Create Signature ->
Smart Signature DetectionNo clear signature fields detected. You can place signature manually.
Upload a PDF to preview pages.
QR VerificationComing soon: local verification QR with document hash, timestamp, and verification ID.
Local Signing HistoryHistory appears after exports from this browser.
How to use
Quick, focused workflow.
Run the tool
Calculate, convert, generate, or process using the primary action.
Review and export
Check the result, then copy, download, or continue in Lazy Workspace.