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.

Is there a cheaper alternative to StampJam?

PDF Verified is a lower-cost StampJam alternative: pay-as-you-go from $1.50 per document, or unlimited documents on the $15/mo Business plan with REST API, audit certificates, and public QR verification included, features StampJam gates behind higher tiers or add-ons.

PDF Verified vs StampJam

A StampJam alternative for making online stamps and seals. Design free, then download a transparent PNG for $1.50 pay-as-you-go, or get a serialized, QR-verifiable stamp you can apply straight to a PDF.

Design your company stamp or seal now. Round seals, dated stamps and approval marks, with a date that fills itself in and a serial number that never repeats. Free to design, and it goes straight onto a PDF, a Word file or an Excel sheet.

Designation seal, Professional
Signature & date, Signature
Signature, name & title, Signature
Approved & signed, Signature

Online stamp maker for quick rubber-stamp and seal images.

PDF Verified vs StampJam in depth

The practical difference shows up the moment someone questions a stamp. A StampJam image looks the part, but there is nothing behind it, anyone who lifts the PNG can reuse it on any file. A PDF Verified stamp carries a serial number and a public QR link, so a recipient can scan it and see the exact document it was issued for and whether it is still valid.

For a one-off decorative stamp StampJam is fine. If you stamp invoices, approvals or official letters that other people rely on, the verifiable version protects you when a document is disputed, and you can apply it to the PDF in the same tool instead of exporting an image and pasting it in a separate editor.

Why teams choose PDF Verified over StampJam

Design any stamp or seal free; pay just $1.50 to download, no subscription to start.
Stamps can be serialized and verified via a public QR link, not just a flat PNG.
Apply the stamp directly onto a PDF, with a tamper-evident SHA-256 seal.
One tool for stamps, company seals AND legally binding e-signatures.
Transparent PNG export plus apply-to-PDF, works anywhere.

Comparison

Feature	PDF Verified	StampJam
Free to design & preview	Yes	Yes
Download price	$1.50 pay-as-you-go (free on plans)	Subscription / credits
Serialized, QR-verifiable stamp	Yes, public verification token	No (image only)
Apply the stamp onto a PDF	Yes, in-app	Usually image export only
Also a full e-signature platform	Yes	No
Tamper-evident audit trail	Yes	No

Is StampJam better than PDF Verified?

StampJam is a handy online stamp maker for quick images. PDF Verified is a strong alternative when you want a stamp you can actually verify, serialized, QR-checkable, applied onto a PDF with an audit trail, and pay-as-you-go ($1.50) downloads instead of a subscription.

A StampJam alternative that does not need posting

If you searched for a StampJam alternative, the thing you are weighing is whether the stamp has to be a physical object. StampJam makes a good one, and a good one takes days to arrive and then has to be near you and near a printer. PDF Verified makes the same mark digitally: design the seal, drop it on a PDF, a Word file or an Excel sheet, and the document is stamped and sent in the time it takes to read this. There is no shipping, no re-order when the ink dries out, and every stamped page carries a QR code anyone can scan to check the document is the one that was stamped.

Where a rubber stamp still wins: paper you have to physically mark, and offices that want the ritual of it. Where this wins: everything already living as a file, which for most businesses is now everything.

What PDF Verified is, and what it is not

PDF Verified is a tool for preparing, signing, stamping and checking documents. It is not a law firm, a compliance service or a forensic examiner, and nothing here is legal, financial or compliance advice. Requirements differ by country, by document type and by the party asking, so check what applies to your document before you rely on it, and take advice where the document matters. You are responsible for the documents you create, sign and send, and for having the authority to do so: signing or stamping in somebody else name, or as an organisation you do not represent, is forgery whatever tool is used. To the extent the law allows, we accept no liability for how a document made with this tool is used or relied on. The full position is in our terms of service.