A common reason is simply not meeting the agency’s submission guidelines. Most stock sites review images for four broad areas: legal/compliance, metadata, and technical quality.

Typical rejection causes include:

• Missing or incorrect legal/compliance items, such as required releases or other policy issues
• Incomplete, inaccurate, or weak metadata (titles, keywords, descriptions, categories)
• Technical quality problems, including obvious image defects or quality below the site’s minimum standard
• Major or “egregious” quality issues that make the file unusable for licensing

Some agencies also separate uses: an image may be accepted for limited/data licensing if it meets legal and metadata requirements but falls short on quality for full creative licensing.

Best approach:

1. Read that agency’s contributor guidelines carefully.
2. Check releases and rights issues before upload.
3. Make metadata accurate and complete.
4. Review files at 100% for focus, noise, artifacts, exposure, and other visible defects.
5. Compare your work with accepted examples on that platform.

If a rejection notice is vague, the site’s published guidelines are usually the clearest explanation of what needs fixing.