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.

How to stamp a PDF

You can stamp a PDF entirely online — no rubber stamp, ink pad, printer or scanner. Design a stamp (a round company seal, an APPROVED / PAID / RECEIVED text stamp, or a dated stamp) or upload a transparent PNG of an existing one, place it on the page, and download the stamped PDF. Designing is free; downloading a stamp is $1.50 pay-as-you-go or free on a paid plan. Turn on serialization and each stamp carries a unique number and a public QR verification link, so a copied image can never pass as genuine.

Stamp a PDF →

How to stamp a PDF — step by step

Design or upload your stamp — Open the stamp maker and build a round seal, oval, rectangle or text stamp — or upload a transparent PNG of your existing stamp. Add a date with {{DATE}} or a serial with {{SERIAL}} if you need them.
Place it on the PDF — Upload the PDF, drag the stamp onto the page, and resize it so it sits neatly over the signature block, corner or approval area.
Download the stamped PDF — Export the stamped document. Optionally enable a serial number and public QR verification link so the stamp can be checked later.

What you get

No physical stamp, ink, printer or scanner needed.
Company seals, notary-style stamps, and text stamps (APPROVED, PAID, RECEIVED, CONFIDENTIAL, DRAFT).
Auto date and serial-number fields.
Transparent PNG so the stamp sits cleanly over any background.
Optional serial + public QR verification — a copied image can’t fake it.

Frequently asked questions

How do I stamp a PDF for free?

Design your stamp free in the PDF Verified stamp maker and place it on your PDF. Downloading a finished stamp is $1.50 pay-as-you-go, or free and unlimited on a paid plan.

How do I add a date stamp to a PDF?

Add a {{DATE}} line to your stamp and it fills in automatically when applied, so every impression carries the correct date. You can format the date and combine it with a serial number.

Can I upload my own stamp image?

Yes. Save your existing stamp as a transparent PNG and upload it, then position it on the PDF. For a verifiable version, rebuild it in the maker so it can carry a serial and QR verification.

How do I put an APPROVED or PAID stamp on a PDF?

Pick the APPROVED or PAID preset in the stamp maker (or type your own text), place it on the PDF, and download. Enable serialization so each approval is uniquely verifiable.

Will the stamp have a white box behind it?

No. Stamps export as transparent PNGs cropped tight to the ink, so they sit cleanly over letterhead, colour and signatures.

How do recipients confirm the stamp is real?

With serialization on, every stamp resolves to a public verification page showing its name, serial, the document it belongs to, and whether it has been revoked — so a pasted copy fails the scan.