Supported Image Formats and Limits

The browser first checks the declared file type, size, file count, and batch total. Clipo's server then checks the declared MIME type against the file signature, opens the image with a guarded decoder, and enforces width, height, decoded-pixel, and frame limits before background processing.

Renaming a file extension does not convert it. For example, renaming a GIF, HEIC, SVG, or PDF to .png will not make it a valid PNG and may be rejected when its content is inspected.

• GIF, HEIC/HEIF, TIFF, BMP, SVG, PDF, RAW, and video files.
• Animated or multi-frame WebP files.
• Empty, truncated, corrupted, or undecodable image data.
• Files whose declared type does not match their actual signature.
• Images over a size, dimension, pixel-area, file-count, or batch-total limit.

• Keep the main subject fully visible and reasonably large.
• Prefer clear contrast between the subject and the existing background.
• Avoid extreme blur, heavy compression, tiny subjects, severe crops, or complex transparent and reflective edges when possible.
• Preserve useful resolution, but stay within the decoded-image safety limits above.

JPEG inputs do not contain transparency, while PNG and WebP inputs may already contain an alpha channel. Clipo processes supported inputs and returns PNG-based outputs when removal succeeds.

The current web result page offers a trimmed transparent cutout, a full-size transparent PNG, and an alpha mask. Review edges and any reliability warning before using the output.

1. Confirm the file is a real JPEG, PNG, or single-frame WebP.
2. Keep the individual file under 10 MB.
3. For a batch, sign in, choose no more than 10 images, and keep the combined total under 50 MB.
4. Open and export the image again from a trusted image editor to repair invalid or corrupted encoding.
5. Try one image at a time to identify which file is causing the batch validation error.