PDF Signature Tool

Create a signature or initials by drawing, typing, or importing an image; place them precisely on any PDF; detect existing signature fields; add date/text/check marks; then export a flattened signed copy with a local SHA-256 signing receipt. Files stay in your browser.

Sign a PDF privately

Open a PDF or use the sample. No account, no upload, no forced watermark.

Drop a PDF here

Large files can be memory-intensive in a browser. For best performance, use documents under 250 MB.

Loading PDF engine…

0Placed

0Sig fields

0Signed pages

Your signing assets

Signature

No signature created

Initials

No initials created

Remember assets on this device

Off by default because signatures are sensitive. When enabled, assets are stored only in this browser's local storage.

Place on the PDF

Select a tool, then click the page. Drag to reposition. Use ←↑↓→ to nudge the selected item; hold Shift for 10-point moves.

Quick content

Signer name

Date format

Ink color

Detected signature fields

Open a PDF to scan for AcroForm signature widgets.

No document loaded.

Detection helps with existing PDF signature widgets. Flat/scanned signature lines may not expose machine-readable fields; use manual placement on those.

Signing audit

Open a PDF to begin.

Source fingerprint

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Receipt details

Reason / purposeLocation / context

Flatten interactive form fields on export

Flattening makes standard form fields read-only in the saved copy. It is not document encryption or certificate locking.

Last saved output

No signed PDF saved yet.

Electronic signature note: this tool embeds a visible signature/initials image and other marks. It does not create a certificate-backed digital signature, timestamp authority proof, remote identity verification, or third-party audit trail.