Images (OCR)
Upload images containing text. WizChat uses OCR (Optical Character Recognition) to extract and index the text.
Supported Formats
| Format | Extension | Support |
|---|---|---|
| PNG | .png | Full support |
| JPEG | .jpg, .jpeg | Full support |
| WebP | .webp | Full support |
File Limits
Image uploads use both plan and file-type caps.
Effective per-file limit = min(plan limit, image hard limit)
- Image hard limit: 50 MB
| Plan | Max Image Size |
|---|---|
| Free | 25 MB |
| Starter | 50 MB |
| Pro | 50 MB |
| Pro+ | 50 MB |
| Business | 50 MB |
| Enterprise | 50 MB |
See Subscription Plans for all file types.
Uploading Images
- Go to "Knowledge Base"
- Click "Upload Document"
- Select your image file(s)
- OCR processing starts automatically
OCR Processing
When you upload an image:
- Upload - Image is transferred
- OCR - Text is extracted from the image
- Processing - Extracted text is chunked
- Embedding - Content becomes searchable
Best Image Quality
For best OCR results:
| Factor | Recommendation |
|---|---|
| Resolution | 300 DPI or higher |
| Contrast | High contrast (dark text, light background) |
| Orientation | Properly aligned (not rotated) |
| Focus | Sharp, not blurry |
| File size | Not overly compressed |
Use Cases
Images with text work well for:
- Scanned documents
- Screenshots
- Diagrams with labels
- Infographics
- Handwritten notes (with good quality)
- Whiteboards
Viewing Extracted Text
After processing:
- Go to "Knowledge Base"
- Click on the image document
- View the extracted text
- Edit if needed
Editing OCR Results
OCR isn't perfect. You can edit the extracted text:
- Open the image document
- Click "Edit Text"
- Correct any errors
- Click "Save"
tip
Always review OCR results for important documents.
Limitations
| Limitation | Details |
|---|---|
| Handwriting | Variable quality |
| Complex layouts | May affect accuracy |
| Low resolution | Reduced accuracy |
| Stylized fonts | May not be recognized |
| Non-Latin scripts | Language support varies |
Troubleshooting
No Text Extracted
Possible causes:
- Image contains no text
- Text too small or blurry
- Unusual fonts
Solution: Try a higher quality image or manually enter the text.
Incorrect Text
Possible causes:
- Low image quality
- Unusual formatting
- OCR limitations
Solution: Edit the extracted text manually.