Teams leave VerifyPDF for two reasons: the monthly cap doesn't match how their volume actually arrives, and a document-level flag isn't enough to act on. TamperCheck prices per document with no cap, and resolves every finding to the specific field that was altered.
Why teams look for a VerifyPDF alternative
- The monthly cap doesn't fit spiky volume. VerifyPDF's tiers cap you at 150-1,000 documents a month for $15-$99; overshoot once and you're negotiating a new tier, undershoot and you've paid for allowance you never used.
- A document-level flag isn't a decision. Knowing a file is "suspicious" still leaves an analyst hunting for what to challenge - TamperCheck names the field.
- You verify more than financial and identity documents. VerifyPDF is built around PDFs, statements and tax returns; TamperCheck covers 100+ document types from 190+ countries under one API.
At a glance
The same fifteen questions we answer on the homepage, with VerifyPDF in the third column.
Documents covered
- TamperCheck.ai
- 100+ document types from 190+ countries
- VerifyPDF
- Any PDF; identity documents as JPG, PNG or HEIF photos
Forensic checks per document
- TamperCheck.ai
- 200+ forensic layers on every upload
- VerifyPDF
- Metadata, document structure, content streams, editor traces, font integrity
AI-generated documents
- TamperCheck.ai
- Dedicated synthesis pass, resolved to the field
- VerifyPDF
- Advertised for AI-generated statements, payslips and tax returns; method not published
Image forgery detection
- TamperCheck.ai
- Pixel-level: splice, resave and edge-sharpness deltas
- VerifyPDF
- Secondary - the published method is PDF-structure-first
PDF & file structure
- TamperCheck.ai
- Objects, fonts, metadata and editor traces
- VerifyPDF
- Yes - this is the core of the product
Field-level alteration
- TamperCheck.ai
- Yes - the altered field named and located
- VerifyPDF
- No - findings land on the document, not the figure
Scans, photos & physical marks
- TamperCheck.ai
- Stamps, embossing, signatures, print artefacts
- VerifyPDF
- ID photos accepted; no stamp or signature forensics published
Automated QC on findings
- TamperCheck.ai
- Every finding re-validated before you see it
- VerifyPDF
- Not published
What you get back
- TamperCheck.ai
- A verdict, the field named, in plain English
- VerifyPDF
- A document-level flag across the layers checked
Time to verdict
- TamperCheck.ai
- About a minute, unattended
- VerifyPDF
- About 5 seconds, up to 30 for long files (their claim)
Price per document
- TamperCheck.ai
- $0.50, published
- VerifyPDF
- $0.08-$0.13 inside the cap; $15-$99/mo to hold the allowance
Commitment
- TamperCheck.ai
- None - no seat fees, no minimum, no cap
- VerifyPDF
- Monthly subscription capped at 150-1,000 documents
How you start
- TamperCheck.ai
- Self-serve - first top-up matched free, live the same day
- VerifyPDF
- Self-serve, but API access starts at Professional ($79/mo annual)
Document retention
- TamperCheck.ai
- Zero - analysed in memory, never written to disk
- VerifyPDF
- Encrypted at rest, auto-deleted when the retention period expires
Training on your documents
- TamperCheck.ai
- Never
- VerifyPDF
- Not addressed in published material
| TamperCheck.ai | VerifyPDF | |
|---|---|---|
| Detection depth | ||
| Documents covered | 100+ document types from 190+ countries | Any PDF; identity documents as JPG, PNG or HEIF photos |
| Forensic checks per document | 200+ forensic layers on every upload | Metadata, document structure, content streams, editor traces, font integrity |
| AI-generated documents | Dedicated synthesis pass, resolved to the field | Advertised for AI-generated statements, payslips and tax returns; method not published |
| Image forgery detection | Pixel-level: splice, resave and edge-sharpness deltas | Secondary - the published method is PDF-structure-first |
| PDF & file structure | Objects, fonts, metadata and editor traces | Yes - this is the core of the product |
| Field-level alteration | Yes - the altered field named and located | No - findings land on the document, not the figure |
| Scans, photos & physical marks | Stamps, embossing, signatures, print artefacts | ID photos accepted; no stamp or signature forensics published |
| Automated QC on findings | Every finding re-validated before you see it | Not published |
| What you get back | A verdict, the field named, in plain English | A document-level flag across the layers checked |
| Speed & cost | ||
| Time to verdict | About a minute, unattended | About 5 seconds, up to 30 for long files (their claim) |
| Price per document | $0.50, published | $0.08-$0.13 inside the cap; $15-$99/mo to hold the allowance |
| Commitment | None - no seat fees, no minimum, no cap | Monthly subscription capped at 150-1,000 documents |
| How you start | Self-serve - first top-up matched free, live the same day | Self-serve, but API access starts at Professional ($79/mo annual) |
| Data handling | ||
| Document retention | Zero - analysed in memory, never written to disk | Encrypted at rest, auto-deleted when the retention period expires |
| Training on your documents | Never | Not addressed in published material |
VerifyPDF figures are taken from their own published material - verifypdf.com - homepage and pricing page, checked September 2026. Anything they state about themselves and we cannot verify is marked “their claim”. For the full head-to-head breakdown, see the TamperCheck vs VerifyPDF comparison.
What switching gets you
- Per-field findings instead of a document flag - "net pay does not match gross minus deductions" rather than a generic tamper score.
- No cap to breach and nothing to renegotiate - $0.50 per document, pay-as-you-go, however your volume moves month to month.
- Zero retention - documents are analysed in memory and never written to disk, closing a data-residency conversation before it starts.
When VerifyPDF is still the better fit
- Your volume is flat, always fills the allowance, and you never overshoot the cap - at steady mid-volume their tiers can price below $0.50/document.
- A five-second flag is worth more to your flow than an explained one - VerifyPDF's speed is real, and a synchronous checkout may value that over a named field.
What actually changes when you switch
Migrating off a document-level forensic API is mostly a response-shape change, not a rebuild. Where your integration used to branch on a single flag, it now reads a list of findings, each naming the field and the reason it was raised. Most teams keep their existing escalation logic and just swap what triggers it - a specific field claim instead of a document-wide score.
The commercial switch is the bigger one: from a monthly subscription with a cap to per-document pricing with none. Model your last three months of actual volume against $0.50/document before you commit either way - below roughly thirty documents a month, or with volume that spikes, pay-as-you-go comes out ahead; at a steady volume that fills a capped tier every month, it might not.
VerifyPDF alternative: common questions
Is switching from VerifyPDF to TamperCheck difficult?
No - both are single-endpoint APIs that take a document and return structured findings, so the integration work is mostly remapping your response handling from a document-level flag to a list of per-field findings. There's no template setup or platform migration involved.
Will I pay more or less than VerifyPDF after switching?
It depends on your volume shape. TamperCheck's $0.50 per document has no floor or ceiling, so it costs less below roughly thirty documents a month or with unpredictable volume. VerifyPDF's capped tiers can price lower per document at a steady volume that fills the allowance every month without ever breaching it.
Does TamperCheck catch what VerifyPDF catches, plus more?
It covers the same ground - metadata, structure, editor traces - as part of a 200+ layer forensic stack, and adds per-field localisation and a dedicated AI-generation and deepfake pass that VerifyPDF's published method does not name.
See how TamperCheck handles your own documents
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