Extract & preserve
Locate candidate signatures across a document, then retain each crop as a linked, fingerprinted specimen.
Explore signature extraction ↗DOCUMENT FORENSICS SOFTWARE
Document examination
& signature extraction.
Extract signature specimens, inspect document metadata and enhance captured paper features with forensic document examination tools.
Digital measurements and enhanced working copies support examination. Source quality, lighting and document context determine what can be assessed.
DOCUMENT FEATURE REVIEWIllustrative document
Synthetic specimenReview overlays
Find reviewable signature regions.
Locate candidate signatures and link each extracted specimen to its source page.
No score or verdict generated
Select a feature or play the illustration.
5 purpose-specific workflowsEach with a defined purpose and scope
Images, PDFs & specialist photosFormat and capture requirements vary by task
Structured result outputsMeasurements support interpretation
01 / THE QUESTION DETERMINES THE METHOD
What do you need
to examine?
A multi-page PDF, a file’s embedded metadata and a backlit photograph contain different kinds of evidence. Match the examination to the available signal.
Inspect the file record
Read supported embedded metadata and flag timestamp or software entries that warrant contextual review.
Explore metadata examination ↗Reveal captured features
Enhance indentation or watermark signals and decode supported printer marks when the capture is suitable.
Explore capture-dependent workflows ↗HOW THE ANALYSIS WORKS
A page becomes a linked specimen.
EVIDENCE / EXPLAINEDGuided demonstration
SPECIMEN AGREEMENT DEMO / 01
Authorisation record
Fictional document for a guided workflow.
Signature
Candidate region
SOURCE PAGE 01 → LINKED SPECIMEN
Page context retained 01 → specimen A
Detection & extraction / IN PRACTICE
From a page to a specimen.
A signature on an agreement
01 / Prepare the page
Keep the source page and its position in the document. Supported page rendering can produce a 600 dpi export; the original capture determines the detail available.
RECORDSource page · rendering context
02 / Locate the candidate
Locate signature-shaped regions. The wider mark-extraction workflow also screens ink and ranks candidates such as initials, names and company chops.
RECORDCandidate region · page coordinates
03 / Trim to the ink
Reduce surrounding whitespace around the selected ink region. Keep the original page available alongside the extracted specimen.
RECORDIndividual crop · original retained
04 / Connect the specimen
Compare the extracted sample with references where supported. Retain the crop-to-page relationship with the comparison and report exhibit.
RECORDSource-linked specimen · comparison input
Demonstration material · annotations explain the workflow; no case result is calculated.
02 / CAPABILITIES, EXPLAINED
Document examination.
A clear output.
See what each workflow examines, what it needs and how to interpret the result. Expand a workflow for inputs, features and limitations.
01 / SPECIMEN EXTRACTION
Signatures, separated and linked
Locate likely signatures on a page, extract selected specimens and retain their source-page relationship.
What you receive: individual signature specimens, ink-boundary crops and source-linked comparison inputs.
Inputs, features & limits
Required evidence
A document-page image or a PDF, including multi-page PDFs.
- Locate signature-shaped regions with a purpose-trained page detector.
- Produce a 600 dpi export where supported by the page-rendering workflow.
- Trim surrounding whitespace to the detected ink boundary.
- Match extracted samples against references where the comparison workflow supports it.
Rendering at 600 dpi does not create detail missing from the original. Signature detection and broader company-chop screening are separate workflows.
PDF · PNG · JPEG · TIFF
02 / EMBEDDED METADATA
Inspect the document’s digital record
Extract readable image or PDF information and check defined relationships between metadata fields.
What you receive: Available metadata and rule-based inconsistency flags for examiner review.
Inputs, features & limits
Required evidence
JPEG, TIFF or PDF. This metadata workflow rejects PNG.
- Compare modification and capture times where those fields are available.
- Check original-versus-digitisation timestamps and image-editing software entries.
- Compare filesystem timestamps with embedded image information where accessible.
Metadata may be absent or editable. A clean record does not establish an unaltered document; an inconsistency does not by itself prove tampering or backdating.
JPEG · TIFF · PDF
03 / INDENTATION IMPRESSIONS
Make captured impressions easier to see
Enhance existing shadow gradients that may show impressions left by writing on a sheet above the examined page.
What you receive: An enhanced working image with clearer local contrast and directional edge detail.
Inputs, features & limits
Required evidence
A photograph taken under raking or oblique light.
- Improve contrast in the information already present in the photograph.
- Emphasise directional edges and shadows associated with surface impressions.
- Prepare a viewing copy for manual interpretation without inventing writing.
An evenly lit photograph or flatbed scan lacks the required shadow-gradient signal. Enhancement complements specialist physical examination; it does not replace an electrostatic indentation examination or recover information never captured.
JPEG · PNG · TIFF
04 / PRINTER IDENTIFIERS
Compare eligible printer marks
Inspect faint identification-dot patterns embedded by supported colour laser printers.
What you receive: Decoded identifiers where readable, and groups of documents sharing an identifier.
Inputs, features & limits
Required evidence
At least two document scans at 300 dpi or higher; additional documents are optional.
- Inspect intentionally embedded identification-dot patterns where present.
- Decode readable printer identifiers from supported patterns.
- Group printouts that share a decoded printer identity.
Only eligible colour laser printers embed the required pattern. Absence is inconclusive: the printer may not embed one, or resolution and compression may have destroyed the signal. This is not a universal printer-source matcher.
JPEG · PNG · TIFF
05 / TRANSMITTED-LIGHT FEATURES
Reveal watermarks & candidate threads
Enhance photographed paper features for closer manual inspection.
What you receive: A clearer watermark image and geometric flags for candidate security threads.
Inputs, features & limits
Required evidence
A backlit or transmitted-light document photograph.
- Enhance the visibility of a watermark already captured in transmitted light.
- Flag candidate security threads using their straight-line geometry.
- Produce a reviewable working image for comparison with the document and its context.
Does not read, authenticate or match a watermark against a reference. Ordinary reflected-light photos and flatbed scans lack the required transmitted-light signal. A candidate thread is a visual lead, not proof of authenticity.
JPEG · PNG · TIFF
03 / TRADITIONAL + ASSISTED EXAMINATION
Less repetitive work.
More room for scrutiny.
Extract specimens, inspect embedded records and enhance captured features with task-specific outputs.
| Examination task | Traditional examination | With Admissible assistance |
|---|---|---|
| Specimen preparation | Locate signatures manually, prepare crops and record the relationship to each source page. | Search all PDF pages, create candidate crops and retain linked fingerprints; review every extracted region. |
| Metadata review | Read file properties and compare timestamp and software entries manually. | Extract supported fields and apply repeatable inconsistency checks, while assessing missing or editable metadata. |
| Captured paper features | Acquire suitable raking-light or transmitted-light photographs and interpret visible features. | Enhance captured contrast and directional detail. Suitable lighting is still required; missing content is not invented. |
| Printer source comparison | Inspect eligible printouts for identification marks and compare readable patterns. | Decode supported printer identifiers and group shared identities. Unsupported printers and absent patterns remain inconclusive. |
| Time & cost | Capture, preparation, inspection, documentation and interpretation require working time. | May reduce repetitive extraction and field checking. Capture setup, candidate review, reporting and fees still count. |
| Accuracy & final opinion | Depends on source quality, suitable capture, reference suitability and appropriate physical examination. | Adds repeatable outputs with defined limits; performance depends on source quality and method suitability. |
Traditional examination may already use digital tools. This comparison describes workflow roles, not a claim that manual practice is inferior or that assisted outputs are automatically correct.
TIME & COST / YOUR OWN ESTIMATES
Compare the full effort.
Enter the total working hours you expect for each approach, including capture setup, preparation, checking, interpretation and reporting. Include additional assisted-workflow fees.
What about accuracy?
Time saved is not evidence of better accuracy. Review extraction errors, metadata availability and the required lighting or printer signal against the actual document.
Planning scenarioIllustrative, editable
Enter non-negative values within the displayed input limits.
Estimated time reduction3 hours
Estimated cost reductionUS$350
Traditional: US$1,200 · Assisted: US$850
Example assumptions only. These are not measured platform savings, quoted fees or a performance guarantee.
04 / A TRACEABLE PROCESS
From a source document.
To a documented result.
Preserve the source and make the reasoning traceable. Choose the analysis only after confirming the examination question and input requirements.
Preserve & identify
Retain the original, record provenance and obtain the appropriate scan or specially lit photograph.
Choose the signal
Confirm the accepted format, scan quality and required lighting before selecting the workflow.
Review the result
Inspect the source alongside outputs. Consider conflicts, limitations and alternative explanations.
Explain the finding
Document extracted data, enhanced views, screening flags and their source links.
Purpose-specific processing. Documented outputs. Explore the analysis engine ↗
START WITH THE EVIDENCE YOU HAVE
Find the workflow that fits.
A source file, suitable capture and a clear examination question are the starting point.