Has this PDF been edited, changed or modified? Check it now!

HTPBE (Has This PDF Been Edited) is a free online service that helps you verify whether a PDF document has been modified or tampered with. Simply upload your PDF file and get an instant yes/no answer about its authenticity.

The service analyzes the PDF’s internal structure, metadata, and creation history to detect any signs of post-creation modifications. This is especially useful when you need to verify the authenticity of important documents you receive from others.

Common scenarios: verifying payment confirmations from buyers, checking invoice authenticity, validating certificates and diplomas, confirming contract integrity, and detecting screenshot manipulations.

You don’t need technical knowledge to use HTPBE—just upload your PDF and get clear results in seconds. The service is completely free, requires no registration, and works with PDF files up to 10 MB.

Payment confirmation fraud is a real problem in online transactions. When someone sends you a PDF screenshot or receipt as “proof of payment”, it could have been digitally edited to fake the transaction details.

Common fraud scenarios:

• Marketplace sellers: A buyer sends a fake payment confirmation to receive goods before actually paying
• Freelancers: A client shows an edited bank transfer screenshot claiming payment was sent
• Rental/accommodation: A tenant provides a modified payment receipt to avoid actual payment
• Online businesses: Customers submit altered invoices or receipts to claim refunds or discounts
• Peer-to-peer transactions: Someone shows fake payment proof to receive goods or services

How HTPBE helps: By checking if the PDF has been modified, you can quickly identify suspicious payment confirmations. If a payment screenshot shows as “modified” in our analysis, it’s a red flag that the document may have been tampered with.

Important: Always verify payment through your actual bank account or payment platform. HTPBE is an additional verification tool, not a replacement for checking your real account balance.

People use HTPBE to verify PDF authenticity in many real-world situations:

Financial & Payments:

• Payment confirmations: Verify bank transfer receipts and payment screenshots from buyers or clients
• Invoices: Check if invoices from suppliers or contractors have been altered
• Receipts: Validate expense receipts for reimbursement or accounting
• Financial statements: Confirm authenticity of bank statements or financial reports

Business & Legal:

• Contracts: Verify that contracts haven’t been modified after signing
• Agreements: Check business agreements for tampering before execution
• Legal documents: Validate authenticity of court documents or legal notices

Academic & Professional:

• Certificates: Verify educational certificates and diplomas from applicants
• Transcripts: Check academic transcripts for modifications
• Professional credentials: Validate licenses and certifications

E-commerce & Marketplaces:

• Shipping confirmations: Verify delivery receipts and shipping documents
• Order confirmations: Check authenticity of purchase orders
• Return receipts: Validate return and refund documentation

In all these scenarios, HTPBE provides a quick first check to identify potentially tampered documents, helping you make safer decisions in your transactions and business dealings.

HTPBE is used by a wide range of people and businesses who need to verify document authenticity:

Online Sellers & Marketplace Vendors: Verify payment confirmations from buyers before shipping products, especially on platforms without integrated payment protection.

Freelancers & Independent Contractors: Check client payment receipts and invoices before starting work or delivering projects.

Small Business Owners: Validate invoices, receipts, and financial documents from customers, suppliers, and partners.

HR & Recruitment Professionals: Verify authenticity of certificates, diplomas, and professional credentials from job applicants.

Landlords & Property Managers: Check payment confirmations and rental receipts from tenants.

Accountants & Bookkeepers: Validate expense receipts and financial documents for accurate record-keeping.

Legal Professionals: Perform preliminary checks on document integrity for contracts and legal paperwork.

E-commerce Operations: Verify return receipts, shipping confirmations, and order documentation.

Anyone Making Peer-to-Peer Transactions: Validate payment proof when buying or selling goods/services directly to other individuals.

Basically, anyone who receives PDF documents from others and needs to trust their authenticity before making important decisions or transactions can benefit from HTPBE.

Our PDF authenticity checker uses advanced multi-layer forensic analysis to detect if a PDF document has been modified or tampered with. The system analyzes PDF metadata including creation dates, modification timestamps, creator and producer information, and PDF version details.

We also examine the internal file structure at the byte level to identify evidence of post-creation modifications, detect digital signatures and analyze their integrity, and scan for embedded malicious code or suspicious scripts.

All detection layers feed into our proprietary risk assessment algorithm, which uses an internal confidence score (0-100) to produce the final result. You see a simple binary answer: whether the PDF has been modified (yes) or not (no). This PDF verification process helps you determine document integrity at a glance.

Our PDF modification detection system provides high accuracy through multi-layer analysis combining metadata validation, structural analysis, and signature verification. The accuracy depends on several factors: the quality of PDF metadata, the sophistication of modification attempts, and the PDF creation tools used.

Our system can detect most common PDF editing scenarios including metadata changes, content modifications, and structural alterations. However, sophisticated manipulation techniques or unusual PDF creation workflows may occasionally produce unexpected results.

Internally we use a confidence score (0-100) to decide the result; you only see a binary answer: the PDF has been modified (yes) or it has not (no). For critical decisions, we recommend using our PDF authenticity checker as part of a broader verification strategy rather than relying solely on automated results.