Priflow is open-source proofing and approval software for designers, marketers and small agencies. Reviewers can click a point on an image or multi-page PDF to leave a numbered comment tied to that location. Teams can retain earlier versions as new ones are uploaded, tag teammates into proofs and track approvals or change requests. Clients can review through links without accounts; signing in is optional. Priflow logs uploads, amendments, replies and approvals with who performed each action and when. It is self-hosted on PHP 8 or later with MySQL, including shared hosting. The free plan costs 0.00 USD per free, billed forever, and includes unlimited users, proofs, reviewers and teams, plus every feature and update. Client files stay on the user's server, and the software is MIT-licensed for commercial use. The default upload limit is 50 MB. Community support is available through GitHub, and the maker offers paid setup help. The product does not claim automated compliance routing or enterprise SSO.
Who it is for
Priflow suits designers, marketers and small agencies that need clients or teammates to review artwork and PDFs. It is for users able to host software on PHP 8 or later with MySQL.
What is good
- Comments attach to specific image or PDF locations
- Earlier proof versions remain on record
- Clients can review without accounts
- Free plan includes unlimited users and proofs
- Files stay on the user's server
What to know first
- Default upload cap is 50 MB
- Requires PHP 8 or later and MySQL
- No automated compliance routing or enterprise SSO
- Community support is through GitHub
Verdict
Priflow offers self-hosted proof review with location-specific feedback, version history and logged approvals. Its hosting requirements and 50 MB default upload cap are important to check before using it.
Priflow plans and pricing
All plansCompared on design proofing software
- Free plan
- Yes
- Supported file types
- Image files and multi-page PDFs
- Annotation tools
- Yes
- Approval workflow
- Yes
- Version history
- Yes
- Guest reviewers
- No


