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106 lines
3.9 KiB
Markdown
106 lines
3.9 KiB
Markdown
---
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description: Edit EXIF, IPTC, GPS, and XMP metadata fields in images without re-encoding pixels.
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---
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# Edit Metadata
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Edit image metadata fields including EXIF, IPTC, GPS coordinates, dates, and keywords. Uses ExifTool under the hood, so metadata is written in-place without re-encoding pixels, preserving full image quality.
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## API Endpoints
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### Edit Metadata
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`POST /api/v1/tools/image/edit-metadata`
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Writes metadata fields to the image and returns the modified file.
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### Inspect Metadata
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`POST /api/v1/tools/image/edit-metadata/inspect`
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Returns the full metadata from the image via ExifTool as JSON. Does not modify the image.
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## Parameters (Edit)
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| Parameter | Type | Required | Default | Description |
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|-----------|------|----------|---------|-------------|
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| title | string | No | - | Image title (XMP/EXIF) |
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| author | string | No | - | Author name |
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| artist | string | No | - | Artist name (EXIF Artist tag) |
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| copyright | string | No | - | Copyright notice |
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| imageDescription | string | No | - | Image description (EXIF) |
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| software | string | No | - | Software tag |
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| dateTime | string | No | - | EXIF DateTime value |
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| dateTimeOriginal | string | No | - | EXIF DateTimeOriginal value |
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| setAllDates | string | No | - | Set all date fields at once |
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| dateShift | string | No | - | Shift all dates by offset (format: `+HH:MM` or `-HH:MM`) |
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| clearGps | boolean | No | `false` | Remove all GPS data |
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| gpsLatitude | number | No | - | Set GPS latitude (-90 to 90) |
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| gpsLongitude | number | No | - | Set GPS longitude (-180 to 180) |
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| gpsAltitude | number | No | - | Set GPS altitude in meters |
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| keywords | string[] | No | - | Keywords/tags to add or set |
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| keywordsMode | string | No | `"add"` | How to handle keywords: `add` (append) or `set` (replace) |
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| fieldsToRemove | string[] | No | `[]` | List of specific metadata field names to remove |
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| iptcTitle | string | No | - | IPTC Object Name |
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| iptcHeadline | string | No | - | IPTC Headline |
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| iptcCity | string | No | - | IPTC City |
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| iptcState | string | No | - | IPTC Province/State |
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| iptcCountry | string | No | - | IPTC Country |
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## Example Request
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Set author and copyright:
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```bash
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curl -X POST http://localhost:1349/api/v1/tools/image/edit-metadata \
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-H "Authorization: Bearer si_your-api-key" \
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-F "file=@photo.jpg" \
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-F 'settings={"author": "Jane Smith", "copyright": "2024 Jane Smith"}'
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```
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Set GPS coordinates:
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```bash
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curl -X POST http://localhost:1349/api/v1/tools/image/edit-metadata \
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-H "Authorization: Bearer si_your-api-key" \
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-F "file=@photo.jpg" \
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-F 'settings={"gpsLatitude": 48.8566, "gpsLongitude": 2.3522, "gpsAltitude": 35}'
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```
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Remove GPS and add keywords:
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```bash
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curl -X POST http://localhost:1349/api/v1/tools/image/edit-metadata \
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-H "Authorization: Bearer si_your-api-key" \
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-F "file=@photo.jpg" \
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-F 'settings={"clearGps": true, "keywords": ["landscape", "sunset"], "keywordsMode": "add"}'
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```
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Inspect metadata:
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```bash
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curl -X POST http://localhost:1349/api/v1/tools/image/edit-metadata/inspect \
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-H "Authorization: Bearer si_your-api-key" \
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-F "file=@photo.jpg"
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```
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## Example Response (Edit)
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```json
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{
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"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
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"downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/photo.jpg",
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"originalSize": 2450000,
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"processedSize": 2452000
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}
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```
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## Notes
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- This tool requires ExifTool to be installed on the server. It is included in the Docker image.
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- Metadata is written in-place, so no pixel re-encoding occurs. The file size change is minimal (just the metadata bytes).
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- The `dateShift` parameter shifts all date fields by the specified offset, useful for correcting timezone errors (e.g. `+02:00` or `-05:30`).
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- If no changes are requested (all parameters omitted or empty), the original file is returned unchanged.
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- Supported formats: JPEG, PNG, WebP, AVIF, TIFF, GIF, HEIC/HEIF.
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- For non-browser-previewable formats (HEIF, TIFF), the response includes a `previewUrl` field with a WebP preview.
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