頂級視頻調整器，可將視頻更改為適合您項目的完美尺寸

Video resizers 是一種軟件，可以讓人們改變視頻文件的大小和形狀。視頻調整器可以做的最常見的事情之一是裁剪視頻。這意味著取出部分視頻幀以製作一個新的、更小的幀尺寸。這對很多事情都很有用，例如為不同的設備或社交媒體平台優化視頻內容，剪掉畫面中不需要的部分，或者組合多個裁剪的視頻來製作新的作品。

Video editors, people in charge of social media, and people who make content regularly need to resize videos. Video content is becoming more and more popular, so video resizers are now a must-have for anyone who works with video files often. If you share the same predicament who wants to maximize the abilities of video resizers, then this article is for you. Check out handpicked programs to resize videos.

第 1 部分。功能最強大的視頻縮放器

如果您喜歡可以在 Windows 和 Mac OS 上裁剪視頻的強大視頻大小調整器，那麼您可以依賴以下工具。這些程序保證了結果和質量輸出。事不宜遲，看看下面的視頻大小調整器。

1. Video Converter Ultimate

FVC Video Converter Ultimate is a popular software tool offering a range of video conversion and editing features, including resizing and cropping videos. This program makes it easy to resize videos to different aspect ratios and resolutions with a range of preset options. The software supports all major video formats, including MP4, AVI, MKV, and more, and you can resize multiple videos simultaneously.

更重要的是，FVC 的視頻裁剪功能也非常有效，讓用戶可以輕鬆去除視頻幀中不需要的部分。這可用於多種用途，例如刪除信箱、針對不同的寬高比調整視頻大小，或從框架中刪除不需要的元素。不用說，它還可以用作寬高比轉換器。同時，您可以查看其主要功能以供細讀。

主要功能特色：

◆ 視頻大小調整到不同的分辨率。

◆ 高質量輸出。

◆ 快速、批量處理。

Step 1. To start using FVC Video Converter Ultimate to crop your videos, you must download and set up the program on your computer. Just click the Free Download button for your operating system and follow the on-screen instructions to install the program.

Step 2. Once the program is set up, you can open it and click on the Toolbox tab to get to the toolbox.

Step 3. From there, choose Video Cropper to open the tool for cropping. Click the plus sign in the upload area of the Video Cropper option to add a video to crop.

Step 4. The next step is to choose the aspect ratio for your video. The best proportion for Snapchat is 9:16. (vertical). Below the video preview is a dropdown menu where you can choose the aspect ratio you want.

Step 5. Click the Export button in the bottom right corner of the interface to save your cropped video file once you're happy with it. Then, you can send it to your followers or post it on Snapchat to show your friends how great you are at editing videos.

2.首映禮

借助 Premiere Pro，用戶可以裁剪視頻以創建新的作品，從畫面中刪除不需要的元素，或針對不同平台或設備調整視頻大小。該軟件支持所有主要視頻格式，並提供一系列用於調整大小和裁剪的預設選項，以及用於自定義裁剪框和實時預覽結果的高級工具。除此之外，它還提供其他有用的功能，如色彩校正、高級特效和音頻編輯。您還可以了解如何在 Premiere 中更改幀大小，因為該程序支持此功能。現在，了解如何在下面的 Premiere 中裁剪視頻並了解其主要功能。

主要功能特色：

◆ 它用作視頻分辨率轉換器。

◆ 編輯和混合音軌。

◆ 提供範圍廣泛的特效。

以下是有關如何在 Premiere 或裁剪視頻中更改縱橫比的步驟：

Step 1. Import your video clip into Premiere Pro by clicking File > Import and selecting your video file. Drag your video clip from the Project panel to the timeline.

Step 2. Select the video clip on the timeline by clicking on it. Go to the Effects Control panel, located in the top-left corner of the interface.

Step 3. Look for the Motion effect in the Effects Control panel and click on the triangle to expand it. Adjust the Scale setting to resize your video. This will adjust the size of the entire video frame.

Step 4. To crop the video, click on the Crop effect in the Effects Control panel and expand it. Use the sliders to adjust the amount of cropping you want for each side of the video frame. You can also enter specific values in the text boxes to get more precise control over the cropping.

Step 5. Preview your cropped video by playing it on the Program Monitor. If you're not happy with the output, adjust the cropping values until you achieve the desired look. When you're finished, export your cropped video by clicking File > Export and selecting your desired output format and settings.

3.達芬奇解決

DaVinci Resolve 是一款功能全面的視頻剪輯軟件，可為專業視頻剪輯師和調色師提供高級功能。 DaVinci Resolve 的突出特點之一是其精確靈活的裁剪功能，讓用戶可以輕鬆調整視頻的取景和縱橫比。

除了裁剪功能外，DaVinci Resolve 還提供一系列其他強大功能，包括色彩校正、音頻編輯和高級特效。無論您是剪輯長篇電影、創作社交媒體內容，還是製作企業視頻，DaVinci Resolve 都能提供實現您的願景所需的工具和靈活性。您可以通過有關如何在 DaVinci Resolve 中裁剪視頻的主要功能和指南了解有關此工具的更多信息。

主要功能特色：

◆ 調整取景和縱橫比。

◆ 支持主流視頻格式。

◆ 用於合成、3D 跟踪和鍵控的融合視覺效果。

Step 1. Open DaVinci Resolve and create a new project. Import your video clip into the Media Pool by hitting the Import button and selecting your video file.

Step 2. Drag your video clip from the Media Pool to the timeline. Select the video clip on the timeline by clicking on it. Next, go to the Inspector panel on the right-hand side of the interface.

Step 3. In the Inspector panel, click on the Crop button to reveal the cropping controls. Adjust the cropping handles to remove unwanted portions of the video frame. You can also use the sliders in the Inspector panel to adjust the crop values numerically.

Step 4. Preview your cropped video by playing it in the viewer. If you're unhappy with the results, adjust the cropping values until you achieve the desired look.

Step 5. When you're finished, export your cropped video by clicking on the Deliver tab at the bottom of the interface. Select your desired output format and settings, then click the Add to Render Queue button to export your video.

4. 後效

Adobe After Effects 是業界領先的視頻編輯軟件，以其多功能性和強大的功能而著稱。它的裁剪功能是其突出的功能之一，使用戶能夠精確、輕鬆地調整視頻的取景和縱橫比。借助 After Effects，用戶可以裁剪他們的視頻以移除幀中不需要的部分，調整寬高比以適應不同的屏幕，甚至可以創建獨特的視頻組合。無論您是專業的視頻編輯器、動態圖形設計師，還是業餘愛好者，After Effects 的裁剪功能都使其成為視頻編輯和合成不可或缺的工具。

Step 1. Open After Effects and create a new composition. Add your video clip to the project by clicking on File > Import > File. Select your video file and click Open.

Step 2. Drag the video clip from the Project panel to the timeline. Select the video layer by clicking on it in the timeline. In the Effect Controls panel, tick on the Motion dropdown to reveal the Motion controls.

Step 3. Adjust the Scale and Position values to crop the video to your desired size and position.

Step 4. You can also crop the video using the Crop effect. To do this, go to Effect > Video Effects > Transform > Crop. Drag the Crop effect onto your video layer.

Step 5. Use the Crop Left, Crop Right, Crop Top, and Crop Bottom sliders to adjust the crop values in the Effect Controls panel. Preview your cropped video by playing it in the Composition panel.

Step 6. When you're finished, export your cropped video by going to Composition > Add to Render Queue. Select your desired output format and settings, then click on the Render button to export your video. That is how to crop videos in After Effects.

5. 最終剪輯專業版

如果您想了解如何在 Mac 上裁剪視頻，Final Cut Pro 是一款專為 Mac 用戶設計的功能強大的視頻編輯軟件。憑藉其直觀的界面和先進的功能，Final Cut Pro 讓用戶可以輕鬆創建專業級的視頻，從短片到完整的電影。有了它，您可以處理社交媒體帖子或電影傑作。 Final Cut Pro 的裁剪工具提供了一系列選項來實現完美的合成。

因此，如果您是一名 Mac 用戶，希望輕鬆精確地製作高質量視頻，Final Cut Pro 的裁剪功能使其成為獲得專業級效果不可或缺的工具。此外，這裡是如何更改 Final Cut Pro 中的視頻分辨率及其主要功能。

主要功能特色：

◆ 支持第三方插件。

◆ 強大的音頻視頻編輯工具。

◆ 先進的視頻編輯工具。

Step 1. Launch Final Cut Pro and open the project that contains the video clip you want to crop. Select the video clip in the timeline by clicking on it.

Step 2. Click on the Crop button located in the top-left corner of the Viewer window. Alternatively, you can press Command+4 on your keyboard to open the Crop tool.

Step 3. Use the handles around the video frame to adjust the crop. You can also manually enter values for the crop size and position in the Crop Inspector window.

Step 4. To adjust the aspect ratio of the cropped video, go to the Video Properties section of the Crop Inspector window and select the desired aspect ratio from the dropdown menu.

Step 5. Preview the cropped video by playing it in the Viewer window. If you're satisfied with the result, you can save the changes.

Step 6. To save the cropped video, go to File > Share and select your desired output format and settings. Finally, click on the Share button to export the cropped video.

第 2 部分。免費視頻大小調整工具

確實，以前的工具可以幫助您剪切視頻的邊或刪除視頻中不需要的部分。然而，它們可能有點難以駕馭。儘管如此，還有更多其他程序可以滿足您的喜好。因此，我們研究並選擇了您可能也想查看的簡單替代方案。

1. iMovie

With iMovie, you can trim, crop, and add effects to your videos, as well as adjust their color, sound, and speed. You can also add text, transitions, and music to your videos and even create stunning movie trailers with pre-designed templates. And thanks to its seamless integration with other Apple products and services, iMovie makes it easy to share your videos on social media, iCloud, or directly to your Apple devices. You can learn more about this program by checking out its key features and guidelines on how to use it. To use iMovie to crop videos, see the sweets below.

主要功能特色：

◆ 包括各種標題模板。

◆ 添加視頻剪輯之間的平滑過渡。

◆ 預先設計的電影預告片。

Step 1. Open iMovie on your Mac. Import the video you want to crop by going to File > Import Media and selecting the video file.

Step 2. Move the video clip into the timeline at the bottom of the iMovie interface by dragging and dropping it there. By clicking on the video clip in the timeline, you can choose it.

Step 3. Click the Crop button in the preview window's upper right corner. The button is shaped like a square with two arrows pointing in the same direction.

Step 4. A cropping rectangle will cover the video clip. You can choose the part of the video you want to keep by dragging the edges of the rectangle.

Step 5. You can also move the rectangle by clicking on it and dragging it to where you want it. Once you have chosen the part of the video you want to crop, click Done to apply the crop.

Step 6. Play back the cropped video in the preview window to see how it looks. If you're happy with the crop, save your project by clicking File > Save and then export the cropped video by clicking File > Share.

2.VLC

VLC Media Player 是一種多功能媒體播放器，具有許多被全世界數百萬人使用的功能。 VLC Media Player 是最著名的媒體播放器，因為它易於使用並且擁有播放、流式傳輸甚至編輯視頻所需的所有工具。但 VLC Media Player 不僅僅是一個視頻編輯器。它還支持各種媒體格式，包括音頻、視頻和流媒體，幾乎可以播放任何類型的文件。另外，它是免費和開源的，

主要功能特色：

◆ 支持多平台。

◆ 先進的播放控制。

◆ 記錄和轉換媒體。

Step 1. To know how to VLC crops videos, click Media from the top menu of VLC Media Player. Click Open File and choose the video file you want to crop.

Step 2. Once the video is playing, go to the top menu bar and click on Tools. Then click on Effects and Filters. Click on Video Effects, and then click on Geometry.

Step 3. By checking the Crop box, the cropping feature will be turned on. Use the sliders next to Crop to change the area that will be cropped. You can also type the pixel numbers into the boxes by hand.

Step 4. When you're happy with how you've cropped the picture, click Close to save the changes. Lastly, save the cropped video by going to the top menu bar, clicking on Media, selecting Convert/Save, and then choosing the folder and file format.

3.手剎

Handbrake is an exceptional open-source video transcoder that allows users to convert, compress, and even crop their videos easily. This free software boasts an impressive array of features that make it a popular choice for amateur and professional videographers. Moreover, Handbrake offers a wide range of video editing tools, such as trimming, resizing, adding subtitles, changing the frame rate, and cropping. This makes it a complete solution for video editing. The software is also easy to understand and use. Its clean, simple interface makes it easy for beginners and experts to find their way around. Look into the steps and learn how to utilize Handbrake to change the size of videos.

主要功能特色：

◆ 視頻質量調整。

◆ 隊列導出。

◆ 高級編碼設置。

Step 1. Download and install Handbrake from the official website. Next, open Handbrake and click on the Open Source button to load the video file you want to crop.

Step 2. After the video is loaded, select the Crop tab on the right-hand side of the window. In the Crop section, use the sliders to adjust the cropping area or manually input the pixel values.

Step 3. Once you're satisfied with the cropping, click on the Start button to begin the transcoding process.

Step 4. After the transcoding is complete, your cropped video will be saved in the specified destination folder.

4.開槍

OpenShot 是用於編輯視頻的免費開源軟件。它具有廣泛的功能和工具，可用於製作和編輯視頻。它適用於 Windows、macOS 和 Linux 操作系統，並且易於使用，即使對於以前沒有編輯過視頻的人也是如此。總的來說，OpenShot 是一個強大而靈活的視頻編輯程序，它為用戶提供了廣泛的工具和功能來製作和編輯看起來像專業人士製作的視頻。作為開源軟件，它也可以免費使用。這使其成為預算有限的視頻編輯人員的絕佳選擇。

主要功能特色：

◆ 多軌道多層次。

◆ 內置標題編輯器。

◆ 自帶3D動畫工具。

如需親身體驗，您可以按照以下有關如何在 OpenShot 中裁剪視頻的指南進行操作：

Step 1. You can get OpenShot from the official website and install it. Start up OpenShot and start a new project.

Step 2. Click Import Files and then choose the video file you want to crop. Drag the video file from the Project Files section to the Timeline section. In the Timeline section, right-click on the video file and choose Properties.

Step 3. Select the Crop tab in the Properties window. To change the cropping area, use the sliders or type in the pixel values.

Step 4. Once you're happy with the cropping, click the Export Video button to send the video somewhere else.

第 3 部分。選擇哪一個

為了幫助您根據需要選擇合適的視頻大小調整器，我們在下面提供了一個比較表。

第 4 部分。有關視頻調整器的常見問題解答

結論

Video resizers are powerful tools that allow you to resize videos, change their aspect ratios, and convert them to different file formats. While many video resizers are available, each utility has its strengths and weaknesses. By comparing different video resizers and choosing the one that best meets your needs, you can ensure that your videos are optimized for the platforms and devices you want to share.