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SnapOtter/apps/docs/tools/pdf/pdf-page-numbers.md
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SnapOtter 8532f3227b docs: audit all 157 tool pages against live schemas
Reconcile every tool page's parameters, defaults, and response shape against the tool's Zod settings schema and executionHint in code. Notable fixes: color-palette (add count + format params, hex output, median-cut algorithm), favicon (add 5 params, was documented as having none), qr-generate (add logoDataUri), convert (add ppm/eps/tga formats), video-loudnorm (-16 LUFS not -14), smart-crop (async 202 not sync 200), images-to-video (1080x1080 square), and several output-filename and behavior-note corrections.

Also normalize API endpoint paths to /api/v1/tools/<id> (no modality segment) and standardize curl examples on the Docker API port 1349. Verified with a clean docs build.
2026-06-18 14:12:28 +08:00

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Markdown

---
description: Add page numbers to every page of a PDF.
---
# PDF Page Numbers
Add "Page N of M" page numbers to every page of a PDF.
## API Endpoint
`POST /api/v1/tools/pdf-page-numbers`
Accepts multipart form data with a PDF file and a JSON `settings` field.
## Parameters
| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| position | string | No | `"bc"` | Page number placement: `bl`, `bc`, `br`, `tl`, `tc`, `tr` |
| fontSize | integer | No | `10` | Font size in points (6-24) |
### Position Values
- `tl` top-left, `tc` top-center, `tr` top-right
- `bl` bottom-left, `bc` bottom-center, `br` bottom-right
## Example Request
```bash
curl -X POST http://localhost:1349/api/v1/tools/pdf-page-numbers \
-H "Authorization: Bearer si_your-api-key" \
-F "file=@document.pdf" \
-F 'settings={"position": "bc", "fontSize": 12}'
```
## Example Response
```json
{
"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/document.pdf",
"originalSize": 2450000,
"processedSize": 2470000
}
```
## Notes
- Page numbers are rendered in the format "Page 1 of 10".
- Numbers are added to every page, including any existing title or cover pages.
- The default position `"bc"` places numbers at the bottom center of each page.