Supported document type
Detect tampered and deepfake Diploma
Fake diplomas are a retail product. Novelty printers sell replicas of named institutions' diplomas with the right crest, the right paper weight, and a pressed seal, marketed as keepsakes and bought as credentials, which puts a better-made forgery into circulation than most document classes ever see. The edits that follow are small: a holder name, a completion date, a programme title. TamperCheck examines the crest, the security print, and the seal impression rather than the wording.
API slug: diploma
Last updated:
What a genuine diploma contains
A diploma records completion of a named programme. It carries the awarding institution and its crest, the holder's name, the title of the course or qualification completed, the level or award type, the date of completion or graduation, and at least one authorising signature: a principal, dean, or programme director, sometimes with a board chair beside them. Many add a diploma number, the campus or faculty that delivered the programme, and a line placing the credential at a level within a national qualifications framework.
With so few fields, the checks that matter concern how the sheet was made and what the institution actually offers. The programme title has to be one the institution ran on the completion date, the signatory has to have held that office in that year, and the crest has to be the version in use at the time, since institutions revise them and old artwork dates a document precisely. Physically, the guilloche and the seal do the work: a real seal deforms the fibre of the sheet, and a real security background prints as continuous engraved line rather than halftone.
How diploma forgeries are made
Novelty replica printing
Replica printers reproduce a named institution's diploma to order, including crest, layout, heavy stock, and an embossed seal, and describe the result as a novelty. Nothing about the physical object needs improving by the buyer, and no record exists anywhere behind it.
Institution swapped onto a working template
An authentic diploma layout is retained and the university name, crest, and signature block are exchanged for another institution's. Crests dropped in from a website arrive at screen resolution, so the new emblem prints softer and at a different dot structure from the text set around it.
Holder name reset
The name is removed and replaced, usually in a font chosen to resemble the institution's calligraphic face without matching it. Letterform details give it away: the stroke contrast, the terminals, and the spacing between characters differ from every other line of display text on the sheet.
Programme title and completion date edits
The course name is changed to one the holder never finished, or the completion date moved to cover an employment gap. Because the programme name is usually the longest line on a diploma, a replacement rarely occupies the same measure and the line centring shifts.
Signature lifted from a published document
A dean's or principal's signature is scanned out of a public letter, annual report, or press release and placed on the diploma. It arrives as a clean bitmap with uniform stroke width, no variation in pen pressure, and edges that were cut out of a different background.
Seal printed rather than pressed
Cheaper forgeries skip the press and print the seal as artwork. Under analysis the difference is not subtle: a pressed seal displaces paper fibre and casts directional shadow at its edges, while a printed one lies in the same plane as the text beside it.
What TamperCheck checks on a diploma
TamperCheck runs 200+ forensic checks across three layers and returns a risk score from 0 to 100 with plain-English findings tied to specific regions of the document. These three carry the most weight on this document class.
Security print, foil, and hologram analysis
A genuine security overlay or guilloche background behaves differently from a printed picture of one. A reproduction loses the structure that made the feature a security feature in the first place, and that loss is measurable even when the copy looks convincing on screen.
Embossed seal analysis
A physically embossed seal deforms the paper it sits on. A seal that was scanned and reprinted is flat, and the two separate cleanly under analysis even when they are hard to tell apart by eye.
Signature forgery analysis
Signature regions are assessed for ink consistency and for how the stroke sits on the page, which distinguishes a genuine pen stroke from a pasted image of one.
And many more checks
The three above are the layers that carry the most weight on a diploma. Every upload runs the full suite of 200+ checks regardless of document class, spanning file structure and metadata, pixel-level forensics, font and text rendering, optical and print characteristics, provenance signals, AI-generation signatures, and many more checks.
Who verifies a diploma, and why
Employers and professional bodies confirming course completion. In each case the document is being used to unlock money, access, or a legal status, which is exactly what makes it worth forging.
How to verify a diploma in 4 steps
Check the fields against each other
Read holder name, course and completion date, and institution crest together rather than one at a time. Forgers typically change one value and leave the rest of the document describing the original.
Inspect the file metadata
Open the document properties and look at the producer, creation date, and modification date. A document produced by a consumer PDF editor, or created long after the date printed on its face, is worth a closer look.
Ask for a second document
Request a corroborating document from the same issuer or an adjacent period. Forgery effort concentrates on one file, so inconsistencies surface as soon as there are two to compare.
Run a forensic check
Manual review catches obvious edits but not field-level pixel manipulation or synthetic generation. TamperCheck runs 200+ forensic checks on a diploma and returns a risk score from 0 to 100 within seconds, at $0.50 per document.
Frequently asked questions
How do I check if a diploma is real?
Contact the institution's records office with the holder's name, the programme, and the completion date, because a diploma states a fact only the institution can confirm. While you wait, check the physical evidence: whether the seal is impressed, whether the crest matches the version the institution used that year, and whether the programme was running under that title on the date shown.
What does a fake diploma look like?
Increasingly, like a real one. Replica printers get the crest, the layout, the paper weight, and even the embossing right, so the tells are finer: a security background that resolves into dots under magnification, a holder name set in a face that does not match the rest of the display text, margins that differ from the institution's template, and a signature with no pressure variation along its strokes.
How is a diploma different from a degree certificate?
A diploma certifies that a named programme was completed, while a degree certificate records that a university conferred a degree, usually with a classification attached. The practical difference for verification is what the fraud buys: a forged diploma claims training that never happened, and a forged degree certificate more often upgrades a real award the holder already has.
Can an AI-generated diploma be spotted?
Yes. Image models produce diplomas that read correctly at a glance and fall apart at line level, with crest detail that is ornamental rather than reproducible, security patterning that never repeats on a fixed pitch, and lettering that wavers in ways typesetting does not. Generation signatures in the image data separate them from a document that was printed and then photographed.
Is it legal to buy a novelty diploma?
Selling replicas as novelties is lawful in many jurisdictions, which is how the industry operates openly. Presenting one as a genuine credential to obtain employment, a licence, or a visa is fraud in most of them, and the printer's disclaimer offers the buyer no protection. Employers treat possession of a replica as a document the institution never issued.
TamperCheck analyses diploma uploads with a hybrid forensic and AI pipeline tuned for this document class. Upload endpoints accept PDF and common image formats; class is inferred automatically. See the API & MCP documentation for authentication, async jobs, and webhooks.