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.

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.

Electronic signatures for construction and trade documents

Quotes, change orders, delivery notes, and site approvals - signed on-site from a phone.

Construction workflows move between offices, job sites, suppliers, and subcontractors. PDF Verified helps teams capture signatures in person, add verified company stamps, and create a tamper-evident record for every quote, change order, delivery note, or safety signoff.

Documents Construction and trades teams sign

Quote / estimate approval
Change order
Subcontractor agreement
Site inspection report
Safety signoff
Delivery note / material handover

How PDF Verified fits

In-person signing captures site approvals without printing paperwork.
Company stamps and date stamps make handover and inspection documents look official.
Sequential routing keeps contractor, client, and site manager approvals in order.
QR verification lets any stakeholder confirm the final PDF is authentic.
Mobile-first forms help field teams sign from a phone instead of waiting for the office.

The document that gets signed on-site is the document that prevents disputes later.

How it works for Construction and trades teams

Upload the document. Drop in a PDF (or Word/Excel — they convert automatically) and place signature, date, stamp, and initials fields where they belong.
Send or sign on the spot. Email a signing link to each party, or use Quick Sign to sign immediately on any device — no printing, no scanning, no app to install.
Identity when it matters. For high-stakes Construction and trades paperwork, add email/SMS OTP checks or full ID + selfie verification with liveness detection before anyone can sign.
Every copy is provable. The finished PDF is sealed with a SHA-256 fingerprint, a complete audit trail (who signed, when, from where), and a QR code anyone can scan to confirm the document is genuine and unaltered.

Why it beats print–sign–scan

A scanned signature page proves nothing — the image can be lifted and reused on any document, and there is no way to tell whether the pages around it changed. A sealed PDF Verified document is the opposite: change one character after signing and verification fails. For Construction and trades teams that answer to auditors, regulators, or opposing counsel, that difference is the whole point.

It is also simply faster. Documents that took days of chasing come back in minutes, reminders go out automatically, and the signed copy files itself on your dashboard instead of a shared-drive folder of "final_v3_signed_SCAN.pdf".

Legal validity

Electronic signatures are legally binding for ordinary business documents in 190+ countries — the ESIGN Act and UETA in the United States, eIDAS in the EU, KICA in Kenya, and equivalents across Africa, Asia, and Latin America. Courts look for intent, identity, and integrity; PDF Verified records all three: a click-to-sign action with timestamps, verified signer identity, and a tamper-evident cryptographic seal.

Frequently asked questions

How does PDF Verified work for Construction and trades?

Is PDF Verified legally binding for Construction and trades documents?

Yes. PDF Verified eSignatures comply with the ESIGN Act, UETA, and EU eIDAS, and every signed Construction and trades document includes a SHA-256 tamper-evident seal, a full audit trail, and a public QR verification page — admissible as evidence in most jurisdictions.

What does it cost?

Pay as you go at $1.50 per completed document with no subscription, or take a monthly plan (Personal from $5.60/mo) when volume grows. Building and testing documents is free — you only pay when a signing completes.

Start free

Sign your first document in about a minute with <a href="/quick-sign">Quick Sign</a>, design an official <a href="/stamp-maker">company stamp or seal</a>, or <a href="/verify">verify a signed PDF</a> someone sent you.