Panduan Memulai

Instal

Anda bisa menggunakan AI-Assisted Setup untuk menginstal plugin ini. Tambahkan skill Capgo ke tool AI Anda menggunakan perintah berikut:

npx skills add https://github.com/Cap-go/capgo-skills --skill capacitor-plugins

Lalu gunakan prompt berikut:

Use the `capacitor-plugins` skill from `Cap-go/capgo-skills` to install the `@capgo/capacitor-file-compressor` plugin in my project.

Jika Anda lebih suka Manual Setup, instal plugin dengan menjalankan perintah berikut dan ikuti instruksi khusus platform di bawah ini:

bun add @capgo/capacitor-file-compressor
bunx cap sync

Impor

import { FileCompressor } from '@capgo/capacitor-file-compressor';

Mulai cepat

import { FileCompressor } from '@capgo/capacitor-file-compressor';

const result = await FileCompressor.compressImage({
  path: photoUri,
  width: 1280,
  quality: 0.8,
  mimeType: 'image/jpeg',
});

await uploadFile(result.path);

Contoh: web Blob input

const result = await FileCompressor.compressImage({
  blob: pickedFile,
  quality: 0.75,
  width: 1024,
  mimeType: 'image/webp',
});

Masalah umum

• Tanpa upscaling: dimensi hanya mengecilkan gambar besar.
• Ukuran PNG: PNG tidak punya pengaturan kualitas, output bisa lebih besar dari sumber.
• EXIF: metadata dihapus, jangan mengandalkan tag orientasi setelah kompresi.

Ikhtisar API

compressImage

Mengompres file gambar dengan dimensi dan pengaturan kualitas tertentu.

Metode ini mengompres gambar untuk memperkecil ukuran file dengan kualitas yang tetap terjaga. Mendukung resize dan konversi format (JPEG/WebP tergantung platform).

Catatan Penting:

• Metadata EXIF dihapus selama proses kompresi di semua platform
• Aspect ratio akan otomatis terjaga jika hanya satu dimensi yang ditentukan
• File hasil kompresi disimpan di direktori sementara pada platform native

import { FileCompressor } from '@capgo/capacitor-file-compressor';

// Web - Compress from file input
const fileInput = document.getElementById('file') as HTMLInputElement;
const file = fileInput.files[0];
const result = await FileCompressor.compressImage({
  blob: file,
  quality: 0.8,
  width: 1200,
  mimeType: 'image/jpeg'
});
const url = URL.createObjectURL(result.blob);

Referensi Tipe

CompressImageOptions

Opsi untuk mengompres gambar.

export interface CompressImageOptions {
  /**
   * The file path of the image to compress.
   *
   * **Platform:** Android, iOS only (not supported on Web)
   *
   * Accepts various path formats:
   * - iOS: `file://` URLs or absolute paths
   * - Android: `content://` URIs, `file://` URLs, or absolute paths
   *
   * @since 7.0.0
   * @example "file:///var/mobile/Containers/Data/Application/image.jpg" // iOS
   * @example "content://com.android.providers.downloads.documents/document/msf%3A1000000485" // Android
   * @example "/storage/emulated/0/Download/photo.png" // Android absolute path
   */
  path?: string;

  /**
   * The file blob of the image to compress.
   *
   * **Platform:** Web only (not supported on iOS/Android)
   *
   * Use this when compressing images from file inputs, fetch responses,
   * or any other Blob source in web applications.
   *
   * @since 7.0.0
   * @example
   * ```typescript
   * // From file input
   * const fileInput = document.getElementById('file') as HTMLInputElement;
   * const blob = fileInput.files[0];
   * ```
   * @example
   * ```typescript
   * // From fetch
   * const response = await fetch('https://example.com/image.jpg');
   * const blob = await response.blob();
   * ```
   */
  blob?: Blob;

  /**
   * The quality of the compressed image.
   *
   * **Range:** 0.0 to 1.0
   * - `0.0` = Maximum compression (lowest quality, smallest file)
   * - `1.0` = Minimum compression (highest quality, largest file)
   * - `0.6` = Default balanced compression
   *
   * **Platform:** All platforms
   *
   * Higher quality values result in larger files but better visual quality.
   * The actual compression ratio depends on the image content and format.
   *
   * @since 7.0.0
   * @default 0.6
   * @example 0.8 // High quality
   * @example 0.5 // Medium quality, smaller file
   * @example 0.3 // Low quality, very small file
   */
  quality?: number;

  /**
   * The width of the compressed image in pixels.
   *
   * **Platform:** All platforms
   *
   * If only width is specified, height is calculated automatically
   * to maintain the original aspect ratio.
   *
   * If both width and height are specified, the image is resized
   * to exact dimensions (may distort if ratio differs).
   *
   * @since 7.0.0
   * @example 1920 // Full HD width
   * @example 1200 // Common web image width
   * @example 800  // Mobile-optimized width
   */
  width?: number;

  /**
   * The height of the compressed image in pixels.
   *
   * **Platform:** All platforms
   *
   * If only height is specified, width is calculated automatically
   * to maintain the original aspect ratio.
   *
   * If both width and height are specified, the image is resized
   * to exact dimensions (may distort if ratio differs).
   *
   * @since 7.0.0
   * @example 1080 // Full HD height
   * @example 800  // Common web image height
   * @example 600  // Mobile-optimized height
   */
  height?: number;

  /**
   * The MIME type of the compressed output image.
   *
   * **Platform Support:**
   * - **iOS:** `image/jpeg` only
   * - **Android:** `image/jpeg`, `image/.webp`
   * - **Web:** `image/jpeg`, `image/.webp`
   *
   * **Format Characteristics:**
   * - **JPEG:** Universal support, good for photos, no transparency
   * - **WebP:** Better compression, supports transparency, not on iOS
   *
   * @since 7.0.0
   * @default "image/jpeg"
   * @example "image/jpeg" // JPEG format (all platforms)
   * @example "image/.webp" // WebP format (Android/Web only)
   */
  mimeType?: string;
}

CompressImageResult

Hasil dari kompresi gambar.

export interface CompressImageResult {
  /**
   * The file path of the compressed image.
   *
   * **Platform:** Android, iOS only (undefined on Web)
   *
   * Points to a temporary file containing the compressed image.
   * On iOS, typically in `NSTemporaryDirectory()`.
   * On Android, typically in app cache directory.
   *
   * **Important:** These files may be cleaned up by the OS.
   * Copy to permanent storage if needed for long-term use.
   *
   * @since 7.0.0
   * @example "/var/mobile/Containers/Data/tmp/compressed_abc123.jpg" // iOS
   * @example "/data/user/0/com.app/cache/compressed_xyz789.jpg" // Android
   */
  path?: string;

  /**
   * The blob of the compressed image.
   *
   * **Platform:** Web only (undefined on iOS/Android)
   *
   * A Blob object containing the compressed image data.
   * Can be used to:
   * - Create object URLs for preview: `URL.createObjectURL(blob)`
   * - Upload to server via FormData
   * - Save to IndexedDB or other storage
   * - Convert to base64 with FileReader
   *
   * @since 7.0.0
   * @example
   * ```typescript
   * // Create preview URL
   * const url = URL.createObjectURL(result.blob);
   * imageElement.src = url;
   * ```
   * @example
   * ```typescript
   * // Upload to server
   * const formData = new FormData();
   * formData.append('image', result.blob, 'compressed.jpg');
   * await fetch('/upload', { method: 'POST', body: formData });
   * ```
   */
  blob?: Blob;
}

Sumber Kebenaran

Halaman ini dibuat dari plugin src/definitions.ts. Jalankan ulang sync saat API publik berubah di upstream.

Lanjutkan dari Getting Started

Jika Anda menggunakan Panduan Memulai untuk merencanakan penyimpanan dan penanganan file, hubungkan dengan Menggunakan @capgo/capacitor-file-compressor untuk kapabilitas native di Menggunakan @capgo/capacitor-file-compressor, @capgo/capacitor-data-storage-sqlite untuk detail implementasi di @capgo/capacitor-data-storage-sqlite, Menggunakan @capgo/capacitor-data-storage-sqlite untuk fitur native di bagian Menggunakan @capgo/capacitor-data-storage-sqlite @capgo/capacitor-file untuk detail implementasi di @capgo/capacitor-file, dan Menggunakan @capgo/capacitor-file untuk kapabilitas native di Menggunakan @capgo/capacitor-file.