Everything you need to know about SigCert
Our AI achieves 98% accuracy in detecting human vs. machine signatures. For celebrity identification, accuracy varies by the size of our database for that particular signer, but we maintain extensive databases for thousands of famous individuals.
Most analyses complete in under 200 milliseconds. However, complex signatures or those requiring celebrity database matching may take a few seconds.
We accept JPG, PNG, WEBP, GIF, BMP, and TIFF formats. Images should be clear and well-lit for best results. Maximum file size is 12MB.
Yes. Your uploads are encrypted and never stored permanently. We only keep images temporarily for processing and then delete them. We never share your data with third parties.
SigCert provides heuristic estimates and should not be used as definitive legal proof of authenticity. For legal purposes, consult with certified forensic document examiners. Our results are best used as a preliminary screening tool.
Free users can analyze up to 5 signatures per day. Pro subscribers get unlimited analyses. Enterprise customers have custom limits based on their plan.
SigCert uses advanced AI and machine learning to provide instant results at a fraction of the cost of traditional authentication services. We combine human-likelihood detection with celebrity signature matching in a single platform.
Yes, API access is available for Enterprise customers. Visit our API Documentation page for more information.
If you believe there's an error, please contact our support team with the analysis ID. We'll review the case and may provide a re-analysis. Remember that our results are estimates based on pattern analysis.
Bulk analysis is available for Enterprise customers through our API. Contact us at support@sigcert.com to discuss your needs.
