docs(image): add readme docs

Author: diegomura

packages/image/README.md

@@ -3,3 +3,166 @@
 </p>
 
 # @react-pdf/image
+
+Image parsing and resolution library for react-pdf. Handles PNG and JPEG images from various sources including local files, remote URLs, base64 data URIs, buffers, and blobs.
+
+## Installation
+
+```bash
+yarn add @react-pdf/image
+```
+
+## Usage
+
+```js
+import resolveImage from '@react-pdf/image';
+
+const image = await resolveImage({ uri: './path/to/image.png' });
+
+console.log(image.width); // Image width in pixels
+console.log(image.height); // Image height in pixels
+console.log(image.format); // 'png' or 'jpeg'
+console.log(image.data); // Buffer containing image data
+```
+
+## Image Sources
+
+The library supports multiple image source types:
+
+### Local File
+
+```js
+const image = await resolveImage({ uri: './image.png' });
+// or
+const image = await resolveImage({ uri: '/absolute/path/to/image.jpg' });
+```
+
+> **Note:** Local file resolution is only available in Node.js environments.
+
+### Remote URL
+
+```js
+const image = await resolveImage({ uri: 'https://example.com/image.png' });
+```
+
+With custom request options:
+
+```js
+const image = await resolveImage({
+  uri: 'https://example.com/image.png',
+  method: 'GET',
+  headers: {
+    Authorization: 'Bearer token',
+  },
+  body: null,
+  credentials: 'include',
+});
+```
+
+### Base64 Data URI
+
+```js
+const image = await resolveImage({
+  uri: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==',
+});
+```
+
+### Buffer
+
+```js
+import fs from 'fs';
+
+const buffer = fs.readFileSync('./image.png');
+const image = await resolveImage(buffer);
+```
+
+### Blob (Browser)
+
+```js
+const response = await fetch('https://example.com/image.png');
+const blob = await response.blob();
+const image = await resolveImage(blob);
+```
+
+### Data Object
+
+```js
+const image = await resolveImage({
+  data: imageBuffer,
+  format: 'png', // 'png', 'jpg', or 'jpeg'
+});
+```
+
+## Caching
+
+Images are cached by default to avoid redundant processing. You can disable caching for individual requests:
+
+```js
+const image = await resolveImage({ uri: './image.png' }, { cache: false });
+```
+
+The cache has a default limit of 30 entries and uses LRU (Least Recently Used) eviction.
+
+## Types
+
+### Image
+
+The resolved image object:
+
+```ts
+interface Image {
+  width: number;
+  height: number;
+  data: Buffer;
+  format: 'jpeg' | 'png';
+  key?: string;
+}
+```
+
+### ImageSrc
+
+All supported image source types:
+
+```ts
+type ImageSrc =
+  | Blob
+  | Buffer
+  | DataImageSrc
+  | LocalImageSrc
+  | RemoteImageSrc
+  | Base64ImageSrc;
+
+type DataImageSrc = {
+  data: Buffer;
+  format: 'jpg' | 'jpeg' | 'png';
+};
+
+type LocalImageSrc = {
+  uri: string;
+  format?: 'jpg' | 'jpeg' | 'png';
+};
+
+type RemoteImageSrc = {
+  uri: string;
+  method?: 'GET' | 'HEAD' | 'POST' | 'PUT' | 'DELETE' | 'PATCH';
+  headers?: Record<string, string>;
+  format?: 'jpg' | 'jpeg' | 'png';
+  body?: any;
+  credentials?: 'omit' | 'same-origin' | 'include';
+};
+
+type Base64ImageSrc = {
+  uri: `data:image${string}`;
+};
+```
+
+## Supported Formats
+
+- **PNG** - Portable Network Graphics
+- **JPEG/JPG** - Joint Photographic Experts Group
+
+JPEG images with EXIF orientation data are automatically handled, with width and height adjusted accordingly.
+
+## License
+
+MIT