PDF Edited or Not? Find Out in Seconds
HTPBE.tech is an online tool that tells you whether a PDF has been edited (yes/no). Not a vague "maybe" — a clear binary answer with a risk score and the specific evidence behind it.
Verify invoices, contracts, certificates, and diplomas before acting on them.
What Makes a PDF Look "Edited"
Every PDF carries hidden evidence of its history. Here is what to look for.
Timestamps out of sequence
The creation and modification dates embedded in a PDF should tell a consistent story. An invoice "created" on Monday but "modified" on Friday is immediately suspicious.
Different applications in the edit chain
PDFs carry a record of which software created and modified them. When those applications don't match what you'd expect — for example, a bank statement "modified" by a photo editor — it signals tampering.
Revision layers in the file structure
The PDF format allows edits to be appended as hidden layers without changing the original data. This leaves forensic traces in the file structure that HTPBE detects.
Digital signature removed or broken
Digitally signed documents that have been modified will show a broken signature. Some forgers remove the signature entirely — which itself is a red flag.
The Easy Way: Use HTPBE
All checks run automatically in seconds — no technical knowledge required.
Upload the PDF
Drop any PDF onto the checker at htpbe.tech — up to 10 MB, no account required.
Multi-layer analysis runs automatically
The tool checks metadata, file structure, revision history, signatures, and embedded content simultaneously.
Edited or not — you get the answer
A clear verdict (edited / not edited), a risk score from 0 to 100, and a list of what was found.
Frequently Asked Questions
What does it mean when a PDF is "edited"?
It means the file was changed after its original creation — text altered, numbers changed, images swapped, or pages added or removed. The edits may be invisible to the naked eye but leave traces in the file's internal data.
Will the tool show what exactly was changed?
No. HTPBE detects whether a PDF was edited, not what was changed. It analyzes the document's internal history and structure, not its visual content. To see what changed, you would need the original document to compare.
Can I check multiple PDFs at once?
The free web tool processes one file at a time. For batch checking, the API is available from $15/month and supports automated multi-document workflows.
Is my file safe to upload?
Yes. Files are transmitted over encrypted HTTPS, analyzed, and not stored permanently. HTPBE does not share your documents with third parties.