Is PDF Verified legally binding?

Yes. PDF Verified signatures comply with the US ESIGN Act, UETA, EU eIDAS regulation, and equivalent eSignature laws in 190+ countries. Every signed document includes a cryptographic SHA-256 fingerprint and a complete audit trail with timestamps and signer hash chain — admissible in court.

How is PDF Verified different from DocuSign?

PDF Verified offers unlimited documents on the $15 Business plan with REST API included. DocuSign charges $40+/user for Business and gates the API behind a $720/month add-on. PDF Verified also includes unique features: public QR verification page on every signed PDF, eStamp designer, AI field auto-detection, and mobile-first signing without requiring an app.

Can I use PDF Verified without a subscription?

Yes. The pay-as-you-go option lets you sign or send one document or envelope for $1.50 without a monthly subscription. Monthly paid plans include a 7-day free trial.

Which file types can I sign with PDF Verified?

Upload PDF, DOCX, TXT, PNG or JPG files. Non-PDF formats are automatically converted to PDF on upload so signers always receive a clean signing-ready document.

How do recipients verify a signed document is authentic?

Every signed PDF includes a QR code on every page. Anyone — even without a PDF Verified account — can scan it to land on a public verification page showing the document status, completion date, SHA-256 fingerprint, and tamper-evidence proof.

Does PDF Verified work on mobile?

Yes — PDF Verified is mobile-first by design. The signing portal uses a native bottom-sheet pattern with touch-optimized canvas signing, sticky CTAs in the thumb zone, and 44px+ touch targets following Apple Human Interface Guidelines. No app download required.

Can I add a company stamp or seal to a document?

Yes. PDF Verified includes a stamp designer for company seals, official seals, approval stamps (APPROVED, PAID, RECEIVED), date stamps, and certified-true-copy marks. Place a stamp on any document like a signature field. On Business plans, the verified stamp library adds auto-incrementing serial numbers, locked metadata, workspace sharing, revocation, and a public QR verification link for every stamp applied.

How do I verify a stamp is genuine?

Each stamp PDF Verified applies mints a unique verification token at /verify-stamp/:token. Scan the stamp's QR code or open the link from the document's audit certificate to see the stamp's name, serial number, the document it was applied to, and whether it has been revoked — so anyone can confirm a company seal or approval stamp is authentic and current.

How do I verify a signature on a PDF is real?

Open the verification page at pdfverified.com/verify and scan the QR code on the signed PDF, paste the verification code, or upload the file. PDF Verified recomputes the document's SHA-256 fingerprint and compares it against the sealed value — if a single byte changed since signing, verification fails. You also see every signer, their timestamps, and the full tamper-evident audit trail. No account is required to verify.

How do I add a digital stamp to a PDF online?

Upload your PDF, open the editor, add a Stamp field, and pick a stamp from your library — a company seal, an APPROVED or PAID approval stamp, a date stamp, or a certified-true-copy mark. The stamp is baked into the sealed PDF with an optional auto-incrementing serial number and a QR code that links to its public verification page. No printer, ink pad, or scanner needed.

Electronic stamps & company seals, applied online

Replace the rubber stamp and ink pad. Design a company seal, official seal, or approval stamp, drop it onto any document, and back every application with a serial number and a public QR verification link.

What you can make

Company seal — your registered name as a digital company chop
Official seal for licences, resolutions, and attestations
Approval stamps: APPROVED, PAID, RECEIVED, REVIEWED
Date stamps
Certified true copy, sealed with a hash
Notary-style stamps with commission details + serial

How to stamp a document online

Create your stamp. In Settings → Stamps, design a company seal or approval stamp or upload an image. Optionally turn on serialization.
Place it on a document. Open any document in the editor, add a Stamp field, and choose your stamp from the library.
Seal and verify. The stamp is baked into the sealed PDF with a serial number and a QR code linking to its public verification page.

Verifiable, revocable, serialized

A photographed rubber stamp can be copied into any document. Every PDF Verified stamp application mints a unique token at /verify-stamp/:token so recipients can confirm the stamp is genuine, see its serial and document, and check whether it has been revoked.

Frequently asked questions

How do I add a company stamp to a document online?

Upload your PDF to PDF Verified, open the editor, choose the Stamp field, and place it where you want the mark. Pick a company seal, APPROVED, PAID, or a date stamp from your library, or design one in seconds. The stamp is baked into the sealed PDF — no printer, ink pad, or scanner.

Is a digital company seal legally valid?

In most jurisdictions a contract is valid on signature alone and the seal is evidentiary, but in many markets (Kenya, Nigeria, India, the UAE, China) a company seal or chop is expected on commercial contracts. A PDF Verified digital seal carries the same visual authority plus an audit trail and public verification a physical stamp cannot offer.

How do recipients verify a stamp is genuine?

Every stamp PDF Verified applies mints a unique token at /verify-stamp/:token. Scan the stamp QR code or open the link from the document audit certificate to see the stamp name, serial number, the document it was applied to, and whether it has been revoked.

Can I put serial numbers on my stamps?

Yes. Turn on serialization with an optional prefix (SEAL-, INV-) and every application gets an auto-incrementing serial number, logged and reachable from the stamp public verification page.

Is the stamp maker free?

The quick stamp maker is free. The verified stamp library — serial numbers, locked metadata, workspace sharing, revocation, and public QR verification — is included on Business plans.