What is PDF Verified?

PDF Verified (pdfverified.com) is an online platform to sign, stamp and verify PDF documents. You can send a document for legally binding electronic signatures, add a digital rubber stamp or company seal, and let anyone confirm the finished file is authentic and unaltered through a public QR code and SHA-256 audit trail. It is pay-as-you-go with no subscription required, and eIDAS + ESIGN + UETA compliant across 190+ countries.

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.

Can PDF Verified check if a PDF has been edited?

Yes. PDF Verified can recompute the SHA-256 fingerprint of a signed PDF and compare it with the fingerprint sealed at completion. If the file was edited after signing, the fingerprint changes and verification fails.

Does PDF Verified include a certificate of completion?

Yes. Completed documents include an audit certificate, also called a certificate of completion, with signer identities, timestamps, IP records, document fingerprint, verification status, and the event history needed for legal review.

Does PDF Verified include an eSignature API?

Yes. Business plans include a REST API and webhooks for sending documents, embedding signing, applying stamps, checking status, and building automated signing workflows.

Can I create a company chop or official seal online?

Yes. PDF Verified includes editable company seal, company chop, official seal, date stamp, and approval stamp templates. Verified stamps can include serial numbers, locked metadata, revocation, and a public QR verification page.

What is the best DocuSign alternative for stamps, seals, and verification?

PDF Verified is built for teams that need more than basic eSignature: public QR verification, PDF authenticity checks, serialized stamps, company seals, audit certificates, and pay-as-you-go signing from $1.50.

New in PDF Verified: Signer ID Verification, WhatsApp Signing, Live Corrections, Payments & More

We have shipped a wave of new features that take PDF Verified well past a plain eSignature tool. You can now verify who is really signing with a government ID and a selfie, send a document for signature straight over WhatsApp, fix a mistake on a document after you have already sent it, collect a payment at the moment of signing, sign in person on a single device, and message signers in a live thread — all with the same tamper-evident audit trail and QR verification behind every document. Here is everything that is new and how to use it.

Verify who is really signing — built-in identity verification (KYC)

You can now require a signer to prove their identity before they are allowed to sign. When identity verification is switched on for an envelope, the signer captures a photo of their government ID (national ID card, passport or driver’s licence) and a live selfie. Their device runs a liveness check and a face match between the selfie and the photo on the ID, so a static photo or a screenshot will not pass.

On our side the ID is re-checked for image tampering and editing-software traces, the machine-readable zone (MRZ) check digits are recomputed, and the name is screened against OFAC, UN and EU sanctions and watchlists. Clean checks pass silently; anything borderline is flagged for you to review in the KYC portal, and if a signer genuinely cannot pass — an unreadable ID or a selfie that does not match — you now get an email telling you why. It is all built in-house, so there is no third-party redirect and no separate identity vendor to pay.

This is the difference between an eSignature and a verified signature: the audit certificate can now show that the person who signed passed a government-ID and biometric check, which is exactly the evidence you want on high-value contracts, onboarding, KYC/KYB compliance and anything that could end up in front of a court.

Send and sign documents over WhatsApp

Email is not where a lot of the world signs anymore. You can now send a signing link — and the one-time verification code that protects it — over WhatsApp. The signer taps the link, signs in their mobile browser, and is done. There is no app to install, nothing to print, and nothing to scan back.

Because the whole signing experience runs in the browser, WhatsApp signing works on any phone, and every document still comes out with the same seal, audit certificate and QR verification as a document signed on a desktop. For teams selling or onboarding over chat, it removes the single biggest point of drop-off: getting someone out of the conversation and into their inbox.

Fix a mistake after you have already sent it — live corrections

Everyone has sent a document and then spotted a typo, a wrong figure, or a signature field placed on the wrong line. Previously that meant voiding the whole thing and starting again. Now you can correct a live envelope in place: edit the PDF, replace it with a new version, or move and reassign a signature or field to a different party — without cancelling the request.

When you make a correction, the signers who still need to act are notified automatically, and the change is written into the audit trail so there is a clear record of what was updated and when. It keeps momentum: the people who already signed stay signed, and the ones who have not simply see the corrected document.

Collect a payment at the moment of signing

You can now attach a payment to a document. Drop a payment field into the envelope and the signer pays a fee, deposit or invoice through Stripe Checkout as part of signing — the document only completes once the payment has cleared. It is ideal for retainers, booking deposits, membership forms and any agreement that should not be considered done until money has changed hands.

Sign in person on a single device

Not every signature happens remotely. With in-person signing you can hand your phone or tablet to someone standing in front of you, capture their signature on the spot, and then loop straight through to the next in-person signer on the same device — no emailing links back and forth. The finished document is sealed and verifiable exactly like a remote one.

Message signers in a live thread — and let them request changes

Every envelope now has a WhatsApp-style chat thread between you and your signers. If a signer has a question, they can ask it right there instead of starting a separate email chain, and you can answer in real time. A signer can also formally request changes — describing exactly what they need and attaching a file — which reaches you as a notification while their signing link stays active, so they can sign the moment you have made the fix.

Never miss a deadline — expiry, reminders and completion emails

Documents can now carry an expiry date, and PDF Verified will nudge signers automatically as the deadline approaches, then warn them again shortly before the link expires — so agreements do not quietly stall. When everyone has signed, the sender gets a completion email with the finished, sealed document ready to download.

For workflows that need a final sign-off, you can require approval before release: the owner is notified when a document is ready to approve, and once it is released the signers are told they can download it. Nothing slips, and no one is left refreshing their inbox wondering what happened.

Rebuilt for phones

Most signers open documents on a phone, so we rebuilt the signing experience for small screens. The document renders bigger so fields are easy to reach without pinch-zooming, the action bar collapses into a tidy menu, a clear “next: sign here” control jumps you to the field you still need to fill, and the signature pad and value editors slide up from the bottom of the screen where your thumb already is. Signing on a phone now feels like it was designed for a phone.

How to try the new features

All of this is live today, not on a roadmap. Start a document, and you will find identity verification, expiry and reminders, approval-before-release and payment fields in the envelope’s settings and field tools; share the signing link over WhatsApp straight from the send screen; and correct or chat on any envelope you have already sent from its tracking view. Your first document is $1.50 with no subscription, so you can try the whole flow — verify a signer, collect a payment, seal and QR-verify the result — end to end before you commit to a plan.