如何在 Mac 上輕鬆縮小影像尺寸 [終極指南]

當您在 Mac 上處理大型影像檔案時，請不要擔心！有一些方法可以解決這個問題。

We understand the need for image compression as it makes them more manageable and convenient to use. Oftentimes, if you may observe, some systems require us to upload image files in a specific file size, some websites load slower, and sending image files through emails takes time. These problems came from the same source, which is a large image file. With that, in this article, we are going to delve into three methods on how you can easily reduce image size on Mac. This is particularly useful when you need to optimize your workflow and ensure that your images are accessible and can load quickly.

第 1 部分：透過減少像素來減少 Mac 上的影像大小

Mac 裝置有一種使用內建工具減少影像的好方法。有了這些，Mac 用戶可以立即在裝置上輕鬆、自由地壓縮照片。

Preview 是一個內建的圖像和 PDF 檢視器工具。有了這個工具，使用者不僅可以享受其檢視影像和PDF檔案的功能。此外，他們還可以利用其編輯功能輕鬆縮小 Mac 上的影像尺寸。而且，它使用起來非常方便且免費，適合所有人使用。為此，請按照以下步驟操作：

Step 1. First, open the Preview app on your Mac device.

Step 2. After that, open the image file that you want to compress the size by going to the File tab and clicking the Open button.

Step 3. Now, go to the Tool tab in the context menu and then click Adjust Size.

Step 4. Select Resample Image if you want to reduce the size of the image files.

Step 5. Now, change the value of your Resolution file. Once you have done so, a new size will be shown at the bottom.

第 2 部分：使用捷徑在 Mac 上壓縮映像大小

當您想要在 Mac 上以更簡單的方式壓縮影像大小時，可以使用「快速操作」來簡化壓縮影像的過程。這樣，您可以直接從 Finder 執行各種任務，而無需開啟應用程式。這包括快速有效地調整影像大小的能力。此外，它提供了一個方便的過程來處理基本的影像編輯任務，例如調整大小，這對於需要快速處理多個影像的人來說非常有用。

Here’s how you can use Quick Actions to compress image size on Mac:

Step 1. Right-click the image you want to compress.

Step 2. From the context menu, select Quick Actions and then Convert Image.

Step 3. Click the Image Size field and select Small, Medium, or Large from the dropdown menu, which also shows the corresponding file sizes.

Step 4. Check Preserve Metadata to keep all the image's information.

第 3 部分：在 Mac 上壓縮影像的最快方法 [一次最多 40 張影像]

If you’re looking for an alternative tool to reduce image size on Mac, you can try the FVC Free Image Compressor. This tool is completely free, and it supports batch compression, where users can shrink their image files up to 40 all at once. Moreover, this tool integrates the best optimization and compression algorithms to preserve the quality of the compressed photo. When it comes to ease of use, this tool is ideal for beginners as they will only have to take two steps, and the compression will process automatically.

Here’s how to compress JPEG using FVC Free Image Compressor

Step 1. To start, you need to access their official website by searching FVC Free Image Compressor on your browser.

Step 2. Next, click Upload Images to import the photos that you want to compress on your Mac. The tool will automatically compress them.

Step 3. After the compression, you can preview the new file size of your compressed image files. Lastly, click Download All to save your image.

使用 FVC 免費影像壓縮器，您可以輕鬆減小 Mac 上的影像大小，確保輸出質量，支援多種影像檔案格式，並具有批量壓縮等其他重要功能。

第 4 部分：有關在 Mac 上減小圖像大小的常見問題解答

結論

In conclusion, knowing what tool to use to reduce image size on a Mac is important, especially when you’re working with images. So, regardless of the tool or method that you’re going to use, any of them can help you compress your images effectively. Are you ready to leverage all these tools in compressing your photos? Start it today!