Please follow the technical guidelines below when uploading cover and audiobook files to the portal to ensure smooth processing and optimal display for end users.
📘 Cover Specifications
| Requirement | Audiobook Cover | E-book Cover |
|---|---|---|
| Image Aspect Ratio | 1:1 (Square) | Any standard ratio |
| Accepted Formats | .jpg, .jpeg, .png | .jpg, .jpeg, .png |
| Recommended Resolution | At least 600 × 600 px | At least 600 px (short side) |
| File Size/Dimension Limits | None | None |
🎧 Audiobook Upload Specifications
Metadata and File Naming Conventions
Make sure the internal metadata tag Title is updated – not just the external filename. The audio player displays the metadata Title, not the raw filename.
Special Characters and Encoding: Avoid special characters, letters with diacritical marks (e.g., å, ä, ö), or spaces in filenames and metadata tags to prevent character corruption.
Naming Pattern: The filename must include a clear numeric pattern; we strongly recommend a clear, standardized format as shown below.
Recommended Naming Examples:
isbn_001.mp3
isbn_002.mp3
isbn_003.mp3
Upload Limits:
- Max audio file length and size: Unlimited, but processing may take longer for larger files
- Recommended minimum bitrate: 192 kbps