C2PA Signature Checker
Check C2PA digital signature markers and Content Credentials signals online without changing the file.
Upload Your File
Drag and drop your file here, or click to browse
Supported File Types
How It Works
Upload your file
Scan metadata
Remove, edit, compare, or generate report
Download your cleaned file
Files are automatically deleted after 5 minutes
Privacy Level
High privacy: temporary processing, internal engines first, and automatic deletion after 5 minutes.
Related GuideWhat it detects
- C2PA Signature
- ContentCredentials
- Manifest
- Provenance
- JUMBF
- xmpMM
What stays safe
- File content
- Image, audio, video, or document quality
- Dimensions and colors
- Pages, layout, and readable content when possible
Why this page is specific
C2PA Signature Checker is tuned for image privacy checks, so the guidance below focuses on the metadata fields people usually miss for this file type.
Best For
- Check C2PA signature markers
- Review image authenticity signals
- Create a privacy report before cleanup
Metadata Fields Checked
- C2PA Signature
- ContentCredentials
- Manifest
- Provenance
- JUMBF
- xmpMM
Recommended Workflow
- Upload a supported image
- Scan signature and manifest signals
- Review the report
- Clean only if needed later
Detection and Removal Scope
Privacy Notice
Files are processed in your browser whenever possible. Some advanced file types may require secure temporary server processing. Uploaded and processed files are automatically deleted after 5 minutes.
Limitations
This tool removes common and supported metadata fields. Some complex files may contain hidden data that requires advanced processing. Always review cleaned files before sharing sensitive information.
Frequently Asked Questions
Short answers to help you choose the right metadata tool and share files more safely.
Is this a legal authenticity verifier?
No. It checks C2PA signals in the file and is not a formal legal verification service.
Does it change my file?
No. View and report actions read metadata only.
What metadata can C2PA Signature Checker detect or remove?
C2PA Signature Checker focuses on generator tags, prompt traces, C2PA records, workflow data, and software metadata when readable. It shows privacy categories first and removes supported hidden data when safely possible.
Is C2PA Signature Checker free to use online?
Yes. C2PA Signature Checker is free to use online for supported AI or provenance file workflows. It uses browser-first processing when possible and secure temporary server processing for advanced formats.
Are my files stored permanently?
No. Files are processed temporarily and private download links expire. The cleaned file is automatically deleted after 5 minutes.
Which file formats are supported?
This page supports .JPG, .JPEG, .PNG, .WEBP, .HEIC, .HEIF, .AVIF. The uploader still checks extension, file size, MIME type, and file signature before processing.
Will cleaning metadata reduce quality?
The goal is to keep the visible file usable. Some formats can be cleaned without changing content; others may need safe rewriting or fallback processing.
Can I preview metadata before cleaning?
Yes. When metadata can be read safely, the page shows general categories such as GPS, author, device, software, and creation date without exposing full sensitive values.
Rate this tool
C2PA Signature Checker
Your rating helps us improve this privacy tool.
Be the first to rate this tool
File Size Limits
- Images: 5 MB
- PDF: 30 MB
- Video: 100 MB
- Audio: 20 MB
- Office documents: 30 MB
- Spreadsheets: 30 MB
For your privacy, this file will be automatically deleted after 5 minutes.
Related Tools
Check Content Credentials, C2PA provenance, generator fields, and manifest metadata before sharing or cleaning an image.
C2PA Metadata RemoverRemove C2PA metadata, Content Credentials, manifest references, and provenance data from supported images when safely possible. Verification may be affected.
C2PA & Content Credentials CleanerCheck and remove supported C2PA Content Credentials, JUMBF boxes, manifest references, claim generator data, and AI provenance metadata when safely possible.
Metadata ViewerPreview hidden metadata in images, PDFs, videos, audio, Office files, and AI images before sharing. It highlights GPS, author, device, software, EXIF, XMP, and C2PA signals without changing the file.
Privacy Report GeneratorGenerate a privacy report for a file, including risk score, GPS findings, author/device/software fields, AI markers, and practical recommendations before sharing.