Comprimi l'immagine API
Cosa fa questo endpoint: IL PDF4me Comprimi l'immagine REST API riduce le dimensioni del file di JPG, PNGe immagini WebP utilizzando algoritmi di compressione intelligenti. Invia la tua immagine come Base64stringa codificata, impostare il formato di output e il livello di compressione e ricevere indietro un'immagine compressa, tutto in un'unica operazione sincrona POST Utilizzalo per ottimizzare le immagini dei prodotti per le pagine di e-commerce, ridurre le dimensioni delle risorse caricate nelle pipeline dei CMS, generare miniature o ridurre i costi di larghezza di banda in qualsiasi applicazione che gestisca file di immagine.
Autenticazione del tuo API Richiesta
Ogni PDF4me REST API la chiamata deve includere il tuo API chiave nel Authorization Intestazione. Ottieni la tua chiave dalla dashboard per sviluppatori e tienila segreta, non esporla mai nel codice lato client.
Informazioni importanti da non perdere
File Name, File Content, Image Type, and Compression Level must all be present in the request payload. A missing or empty field causes a 400 Bad Request error. Validate all four values in your code before sending the API call.
The API uses Image Type to select the correct decompression codec before re-encoding. Sending PNG data with Image Type set to JPG causes a format mismatch error. Always read the actual MIME type or file extension from your source and set Image Type to match.
Max reduces file size by 80-90%: ideal for thumbnails and social media previews where pixel-perfect detail is less important. Medium (60-70% reduction) suits most product and blog images. Low (30-40% reduction) is recommended when you need to preserve fine detail for print, zoom features, or professional photography archives.
REST API Punto finale
| Metodo | Punto finale |
|---|---|
| POST | /api/v2/CompressImage |
URL di base: https://api.pdf4me.com
Parametri
⚠️ Tutti e quattro i parametri sono obbligatori. IL API Restituisce un errore se uno qualsiasi dei campi è mancante o vuoto.
| Parametro | Necessario | Tipo | Cosa fa | Esempio |
|---|---|---|---|---|
| docName | Required | String | Filename of the source image including the file extension. Used to identify the format and name the output file. Use descriptive, extension-correct names. | product-hero.jpg |
| docContent | Required | Base64 | The complete image file encoded as a Base64 string. Supported formats: JPG/JPEG, PNG, WebP. Maximum file size: 50 MB. Do not include a data URL prefix: pass the raw Base64 string only. | JVBERi0xLjQK... |
| imageType | Required | Enum | Output image format. Must match the actual format of docContent. Accepted values: JPG · PNG · WebP | JPG |
| compressionLevel | Required | Enum | Compression intensity. Max: 80-90% size reduction, good quality (thumbnails, social media). Medium, 60-70% reduction, very good quality (product images, blogs). Low, 30-40% reduction, excellent quality (print, zoom, archives). | Medium |
Campi di output
| Campo | Tipo | Descrizione |
|---|---|---|
| Contenuto del file | Base64 | Il file immagine compresso codificato come Base64Decodifica in binario per salvare come file. |
| Nome del file | String | Nome del file dell'immagine compressa in uscita. |
Esempio di richiesta
Intestazioni
Content-Type: application/json
Authorization: YOUR_API_KEY
Payload JSON
{
"docName": "product-hero.jpg",
"docContent": "JVBERi0xLjQK...",
"imageType": "JPG",
"compressionLevel": "Medium"
}
Risposta
{
"File Content": "BASE64_COMPRESSED_IMAGE_DATA",
"File Name": "product-hero.jpg"
}
Esempi di codice
Casi d'uso comuni
Compress JPG product photos to Medium level before serving on listing pages. Reduces page load time by 60-70% without visible quality loss on standard displays: directly improving Core Web Vitals and conversion rates.
Intercept image uploads in your CMS (WordPress, Contentful, Strapi) and run them through Compress Image at Max level before storing. Thumbnails and hero banners benefit most: users see no quality difference at normal viewing sizes.
High-resolution press images (300+ DPI, often 20-50 MB) can be compressed at Low level to maintain near-print quality while reducing file size by 30-40%. Ideal for photography portfolios, architectural galleries, and product zoom features.
Domande frequenti
▶ What is the maximum file size the Compress Image API accepts?
The API accepts images up to 50 MB. For best performance, keep images under 10 MB. Larger files increase processing time significantly and may exceed request timeouts on slow connections.
▶ Does Image Type need to match the actual binary format of File Content?
Yes: always. The API uses imageType to select the correct decompression codec before re-encoding at the chosen quality level. Sending PNG data with imageType set to JPG causes a format mismatch error. Read the actual MIME type or file extension from your source and set imageType to match exactly.
▶ Which Compression Level should I use for e-commerce product images?
Medium is the recommended level for most product images. It reduces file size by 60-70% while maintaining very good visual clarity for standard monitor and mobile display sizes. Use Low only when your product images include fine textures or details that customers zoom into.
▶ Can I convert and compress an image (e.g. PNG to WebP) in the same API call?
No: Compress Image only compresses within the same format. To convert between formats, call the Convert Image Format endpoint first, then pass the result to Compress Image in a second call. Chain these two calls in your application for a compress-and-convert pipeline.
▶ Is the output File Content returned as Base64 or binary?
The output File Content is Base64-encoded. Decode it to binary before writing to a file. In Python: base64.b64decode(response["File Content"]). In Node.js: Buffer.from(response["File Content"], "base64").