Images you can submit fall into four buckets: cover art, banner art, character images, and staff images. Each has its own rules but shares a few universal requirements.
Universal rules
Use the official artwork when one exists. Fan art, AI-generated art, and screenshots from the work itself are not accepted as covers / banners / character portraits.
No third-party watermarks. Stamps from random fan sites are a hard reject. A small official logo (publisher, distributor) is fine.
Source the image. Link the official site, publisher catalog, or licensed retailer page you took it from.
Don't replace a good image with a slightly different version. A replacement should be clearly better — higher resolution, less compression, more accurate aspect, or the correct artwork where the previous one was wrong.
Cover art
Aspect ratio roughly 2:3 (poster) for both anime and manga.
Minimum resolution 460×640. Higher is better. Avoid upscales.
What counts as the cover — the publisher's primary key art for the work. For anime, the official poster used in marketing. For manga, volume 1 / serialisation cover. Subsequent-volume covers can be submitted separately if useful.
Banner art
Aspect ratio roughly 3:1 (wide).
Minimum resolution 1500×500. Wider works are fine.
Avoid banners with prominent text — Waifora overlays its own titles on them.
Character images
Aspect ratio roughly 3:4 or 2:3 (portrait).
Use official artwork — anime production designs, manga key art, official character sheets.
A clean head-and-shoulders crop is preferable to a chaotic action pose.
For anime with multiple official designs (different seasons / movies), the most current canonical design wins unless the older one is clearly more representative.
Staff images
A clear, public-facing photo or official portrait. Award-event photos with a clean background are fine.
No paparazzi shots, no private-event candids. When in doubt, lean conservative.
For voice actors, a publicity portrait beats a convention selfie.
File format
JPEG for photographic content, PNG for art with hard edges or transparency. Keep file sizes reasonable — under ~2 MB unless the resolution genuinely justifies more.
Don't upload SVG, BMP, TIFF, or HEIC — they don't render reliably on the web.