Pinterest reads IPTC photo metadata (the same DigitalSourceType standard used by Midjourney and Shutterstock) alongside its own proprietary visual classifiers to detect AI-generated or AI-modified Pins. When detected, an "AI modified" label appears in the bottom-left corner of the image when viewed in close-up — and notably, the label is persistent and cannot be removed by the uploader through Pinterest's own interface.
Pinterest's labeling push responded directly to what users and media coverage called "AI slop" — low-quality, mass-produced AI content crowding out the human-curated inspiration the platform was built around. Rather than relying solely on embedded metadata (which creators could simply avoid by using tools that don't write it), Pinterest combined metadata detection with in-house classifiers trained to catch generative content even without explicit markers.
This two-layer approach matters for understanding what metadata removal can and can't do here:
In other words, removing metadata reduces one detection path but doesn't guarantee an image won't still get labeled on visual grounds alone — this is consistently true across Pinterest, Instagram, and TikTok.
Pinterest treats the "AI modified" label strictly as a transparency layer, not a rules clearance: a labeled Pin can still violate policies on deception, impersonation, intellectual property, or harmful content independent of the label itself. Being correctly labeled doesn't make otherwise-prohibited content acceptable.
Pinterest offers an appeals system for creators who believe a Pin was mislabeled. For ads specifically, disclosure appears only in the "Why am I seeing this ad?" panel rather than directly on the ad creative.
AiEraser's View mode decodes the actual IPTC and C2PA fields in your file so you know what metadata signal, if any, Pinterest would read — and Remove mode strips it before upload.
Sources: Pinterest Newsroom announcements on "AI modified" labeling (2026), public reporting on Pinterest's IPTC-based detection and appeals process. Platform policies change; verify current behavior directly with Pinterest if decision-critical.