Quick Start
在 URL 中添加查询参数即可预填封面内容。无参数时页面行为不变。
https://pic.appinn.com/?title=我的标题&desc=这是描述&theme=oceantitle 和 desc 支持换行，URL 中请使用 %0A 表示换行符。
URL Parameters
| Parameter | Type | Range / Values | Description |
|---|---|---|---|
| title | string | any text | Cover title text, supports line breaks via %0A |
| desc | string | any text | Description / subtitle, supports line breaks via %0A |
| style | string | premium simple elegant |
Visual style (only works on index.html, redirects to the target page) |
| theme | string | see theme list below | Color theme name |
| fontSize | int | 60 ~ 400 (step 10) | Title font size in px |
| titleWidth | int | 50 ~ 95 (step 5) | Title area width in % |
| descSize | int | 20 ~ 60 (step 2) | Description font size in px |
| separatorWidth | int | 0 ~ 800 (step 20) | Separator line width in px (0 = hidden) |
| watermark | string | any text | Watermark text (default: APPINN.COM, empty = hidden) |
| download | int | 1 |
Auto-download the image after rendering |
Available Themes
Premium Style index.html & Simple Style index2.html
Elegant Style index3.html
Style Routing
style parameter only takes effect when visiting the root entry point
(index.html / /).
It redirects to the corresponding page while preserving all other parameters.
If you visit index2.html or index3.html directly, the
style parameter is ignored.
# Visits index.html, gets redirected to index3.html?title=...&theme=sapphire
https://pic.appinn.com/?style=elegant&title=Design Guide&theme=sapphireExamples
Notes
Invalid parameters are silently ignored — the page falls back to defaults. For example, an unknown theme name won't cause errors.
Numeric values are clamped and snapped — fontSize=999 becomes 400 (max), fontSize=63 snaps to 60.
URL is preserved — parameters stay in the address bar for easy sharing and AI verification.
Image upload is not supported via URL — binary data cannot be passed through query strings.
See also: /llms.txt for AI-readable documentation.