Image Categories Explained
Why three libraries?
A fabric trader's images have different sensitivity levels — cover images shown to customers need to look good, internal-reference factory floor photos shouldn't leak, and personal inspiration images shouldn't be seen by colleagues.
Jenny Software solves all of this at once with three tiered libraries: public / internal / private.
Definitions of the three libraries
| Library | Who can see | External sharing | Image search | Suits |
|---|---|---|---|---|
| Public library | Everyone (company employees + customers + showroom visitors) | ✅ Supported | ✅ Supported | Cover images / color cards / marketing images that customers can see |
| Internal library | Company employees (not visible externally) | ❌ Not supported | ✅ Supported | Factory floor photos / process details / shrinkage measurements |
| Private library | Only the uploader | ❌ Not supported | ❌ Not supported | Inspiration images / sketches / personal memos |
Quantity and size
| Item | Limit |
|---|---|
| Public library | Up to 50 images / sample |
| Internal library | Up to 50 images / sample |
| Private library | Up to 50 images / sample (only you) |
| Color images | Up to 3 per color (number of colors is unlimited) |
| Size per image | Images over 10MB are compressed automatically before upload—no manual processing needed |
Supported formats
- Images: JPG / PNG / WebP
What about HEIC photos taken on an iPhone?
We recommend converting sample photos to JPG / PNG before uploading (your phone's photo album usually converts them automatically when you share).
Recommended sizes
| Use | Recommended size | Notes |
|---|---|---|
| Sample cover image | 1080×1080 square | Best for showroom / buyer side / card sharing |
| Sample detail large image | Within 1920×1920 | High-definition viewing, with good zoom and rotation |
| Color image (per color) | Within 400×400 | Color cards arrange neatly |
| Label print image | Within 600×600 | Thermal printing has limited resolution |
| Showroom banner | 1920×600 widescreen | Homepage carousel image |
| Company logo | 400×400 transparent PNG | Transparent-background PNG recommended |
Below the recommended size still works
The system has no hard requirement on minimum size. But very small images (<300px) become blurry when enlarged.
Automatic processing by the system
| Auto-processing | Effect |
|---|---|
| Large-image compression | Images over 10MB are compressed automatically on import, reducing storage and data usage |
| Multi-size generation | Thumbnail (lists) + medium (details) + original (download) |
| On-demand loading | Lists / details load different sizes on demand, reducing data usage |
Bulk image import
Sample images come in together with the Excel import: add an image column in the Excel (with a header that is one of 图片 / 封面 / Picture / Image / Cover), then insert images directly into the corresponding rows, or fill in image URLs in that column (the system fetches them automatically). When an image column is included, the per-import row count is lower.
See Bulk Data Import → How to import sample images together.
Watermark / anti-theft when sharing public images
Automatic watermark
Public images can be configured under "Marketing → Showroom Settings":
- Company logo watermark (adjustable opacity / position)
- Company name + contact info watermark
- Multiple watermark templates
Put sensitive images in the right library
Don't put high-value know-how in the public library
- Images visible to customers will inevitably be screenshotted and saved
- Don't convey key know-how through images (put it in internal / private)
- Process details / shrinkage data / internal price lists, etc. → the internal library
Image-search differences across the three libraries
| Library | Can it be found by search |
|---|---|
| Public library | ✅ Any employee's search can find it |
| Internal library | ✅ Company employees can find it |
| Private library | ❌ Only you can find it |
See Search by Image.
FAQ
Q: Can a public image be changed to private?
A: Yes. On the sample edit page you can adjust which library each image belongs to.
Q: What is the per-library image limit?
A: 50 images / sample per library (raised from 9 in June 2026—enough room even for customers with lots of color cards). Color images: up to 3 per color, with no limit on the number of colors.
Q: Can I add notes / descriptions to images?
A: Yes. Each image can have descriptive text (visible on the detail page, not shown when printing).
Q: Can the same image be attached to multiple samples?
A: Not directly (each sample stores its own images). On import, one row (one sample) corresponds to its own images.
Q: If an image is deleted, can it be recovered?
A: Yes. Contact support within 30 days to restore from backup.
Q: Can iPhone HEIC photos be uploaded directly?
A: We recommend converting sample photos to JPG / PNG before uploading (your phone's photo album usually converts the format automatically when you share).
Related articles
- Sample Management — sample image management operations
- Bulk Data Import — bulk-upload image packs
- Cloud Disk & File Sharing — the same three-library rules for cloud-disk files
- Web Showroom Introduction — public-image external display
- Search by Image — three-library search differences
- Data Security — image storage security
- FAQ