Proofcan and Adobe Content Credentials.
The Content Authenticity Initiative says it develops free, open-source tools for C2PA Content Credentials; Adobe describes Adobe Content Authenticity as a free web app for attaching Content Credentials. Everything on this page about Adobe Content Credentials comes from its own site; everything about Proofcan comes from Proofcan’s own product pages.
What each publishes
What it does
Adobe Content Credentials
Each asset is cryptographically hashed and signed to capture a tamper-evident record (Content Authenticity Initiative).
“Each asset is cryptographically hashed and signed to capture a verifiable, tamper-evident record that enables exposure of any changes to the asset or its metadata.” · How it works - Content Authenticity Initiative
Adobe says its app combines secure metadata, invisible watermarks and digital fingerprinting to keep credentials connected to the work.
“Leveraging a combination of secure metadata, invisible watermarks, and digital fingerprinting technology, your Content Credentials will remain connected to your work even if the metadata is removed or if someone takes a screenshot.” · Introducing Adobe Content Authenticity: A free web app to help creators protect their work, gain attribution and build trust | Adobe Blog (2024-10-08)
Proofcan
A C2PA manifest declaring the image as AI-generated, an invisible TrustMark watermark carrying a lookup ID, and a registry record.
Media
Adobe Content Credentials
Adobe says Content Credentials can be applied to images, audio and video files.
“you can apply Content Credentials to your digital work, including images, audio and video files” · Introducing Adobe Content Authenticity: A free web app to help creators protect their work, gain attribution and build trust | Adobe Blog (2024-10-08)
Proofcan
Images only (PNG, JPEG, WebP), up to 50 MB each and 25 per batch. No video, audio or text.
Formats
Adobe Content Credentials
Public beta (24 April 2025): batches of up to 50 JPG or PNG files; more types to come.
“Creators can now apply Content Credentials to up to 50 JPG or PNG files at once” · Adobe Content Authenticity, now in public beta, helps creators secure attribution | Adobe Blog (2025-04-24)
Proofcan
Images only (PNG, JPEG, WebP), up to 50 MB each and 25 per batch. No video, audio or text.
How it is sold
Adobe Content Credentials
A free web app; the CAI’s tools are free and open source.
“a new, free web app that allows creators to easily attach Content Credentials to their digital work” · Introducing Adobe Content Authenticity: A free web app to help creators protect their work, gain attribution and build trust | Adobe Blog (2024-10-08)
Proofcan
Self-serve web application; Free, Starter, Pro and Agency plans.
Standards statements
Adobe Content Credentials
The CAI says its work is fully compliant with the technical specifications released in 2022 by the C2PA.
“Our work is fully compliant with the technical specifications released in 2022 by the Coalition for Content Provenance and Authenticity (C2PA) or C2PA Content Credentials.” · How it works - Content Authenticity Initiative
Proofcan
C2PA Conformance application in progress.
Limits of this comparison
- Adobe’s product and help pages blocked scripted fetches, so the Adobe facts above come from Adobe blog posts dated 8 October 2024 and 24 April 2025 and from the Content Authenticity Initiative site. Current (October 2026) status is not confirmed.
- contentauthenticity.adobe.com renders with JavaScript and could not be read, and we found no Adobe enterprise page we could read.
- Adobe Firefly’s own Content Credentials behaviour is covered separately in the tools database.
- What Proofcan lacks: Proofcan does not cover video, audio or text, and its C2PA conformance application is still in progress.
Different starting points
Adobe and the CAI describe free tools aimed at creators, with support for images, audio and video. Proofcan is a paid service for images only, with a registry record and a PDF report of marking history; it does not cover audio or video.
Visit Adobe Content Credentials at contentauthenticity.org/ to check what it offers today.
Questions
- What does Adobe Content Credentials say it does?
- The Content Authenticity Initiative says it develops free, open-source tools for C2PA Content Credentials; Adobe describes Adobe Content Authenticity as a free web app for attaching Content Credentials.
- What does Adobe Content Credentials publish about pricing?
- We found no published price on the Adobe Content Credentials pages we read. Proofcan: Published: Free (5 marks a month), EUR 29, EUR 99 and EUR 199 a month for 100, 400 and 1,000 marks.
- What does Proofcan not do?
- Proofcan does not cover video, audio or text, and its C2PA conformance application is still in progress.
This page reports what the cited sources say on the date shown. It is not an assessment of anyone’s product, it is not legal advice, and Proofcan does not guarantee compliance. Spotted something out of date? Write to support@proofcan.com.
Sources
- How it works - Content Authenticity Initiativecontentauthenticity.orglast checked
- Introducing Adobe Content Authenticity: A free web app to help creators protect their work, gain attribution and build trust | Adobe Blog (2024-10-08)blog.adobe.comlast checked
- Adobe Content Authenticity, now in public beta, helps creators secure attribution | Adobe Blog (2025-04-24)blog.adobe.comlast checked
Page reviewed . Proofcan is a technical tool, not legal advice, and does not guarantee compliance.