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.

How to sign a PDF from Google Drive

Google Drive and Gmail let you store and preview PDFs, but not truly sign them, there is no signature tool, no audit trail and no verification. The quickest way is to sign the PDF in the browser and save it back. Download the PDF from Drive or your Gmail attachment, open it in PDF Verified, add your signature by drawing, typing or uploading it, and download the signed file, then upload it back to Drive or reply with it. Every signed PDF is sealed with a tamper-evident fingerprint and carries a public QR verification link, which a Google Drive copy alone can never provide.

Sign a Drive PDF →

How to sign a PDF from Google Drive — step by step

Download the PDF from Drive or Gmail — Open the file in Google Drive (or the attachment in Gmail) and download it to your device.
Open it in PDF Verified — Go to pdfverified.com, open Quick Sign, and drop the PDF in. Nothing is uploaded until you choose to save.
Sign and fill — Place a signature field and draw, type or upload your signature. Add the date, text or a company stamp if the document needs them.
Save it back to Drive — Download the signed, sealed PDF and upload it back to Google Drive, or reply to the Gmail thread with it. Every page carries a QR verification link.

What you get

Works with any PDF from Google Drive or a Gmail attachment.
Draw, type or upload your signature, no app to install.
Add date, text, initials and company stamps in the same flow.
Sealed with SHA-256 and public QR verification a Drive copy can’t offer.
Free to start; $1.50 to download or unlimited on a paid plan.

Frequently asked questions

Can I sign a PDF directly inside Google Drive?

Google Drive can preview and store PDFs but has no built-in signature tool or audit trail. Download the PDF, sign it in PDF Verified, and upload the sealed, verifiable copy back to Drive.

How do I sign a PDF attachment in Gmail?

Download the attachment, open it in Quick Sign, add your signature and download it, then reply to the email with the signed file. It takes under a minute and needs no app.

Is the signed PDF legally binding?

Yes. Electronic signatures are recognised under the US ESIGN Act and UETA, the EU eIDAS Regulation and equivalent laws in 190+ countries, and PDF Verified adds a tamper-evident seal and audit certificate.

Can the recipient verify it?

Yes. Every signed PDF has a QR code and verification link on each page, so anyone can confirm it is genuine and unaltered without an account, something a plain Drive file cannot do.