Pixelcut
A landscape photograph of a young man, created by an AI tool that expanded an original vertical portrait. The man is in the center, and the green, blurry background has been extended to the sides to fit the wide 16:9 format.

AI Portrait Aspect Ratio Editor

7000万人に信頼されています
171,800件のレビュー
開発者API
iPhone と Android で利用可能

How to Change Your Portrait's Aspect Ratio

  1. 1

    Upload your portrait

    Start by uploading the portrait you want to resize. You can select a file from your computer or mobile device.

  2. 2

    Enter your prompt

    In the text box, describe how you want to change the aspect ratio. For example, type 'Change to a 1:1 square aspect ratio' or 'Make this a 16:9 widescreen image'.

  3. 3

    Generate your new image

    Click the generate button. Our AI will process your request, extending the background of your portrait to fit the new dimensions you specified.

  4. 4

    Download your resized portrait

    Your new, perfectly resized portrait is ready to be downloaded. It will be a high-resolution, watermark-free PNG file ready for any use.

Turn a tightly framed portrait into a wide, scenic shot without losing a single pixel of your original image. Our AI-powered tool doesn't just stretch or crop your photo; it intelligently generates new background to expand the scene. You can transform a vertical picture into a horizontal masterpiece, creating more space and context around your subject. This generative fill capability analyzes the existing image and seamlessly extends the background, making it look as though the photo was originally shot that way, giving you complete compositional freedom.

Expand Your Portraits Beyond the Frame

A high-quality studio portrait of a woman, framed vertically to showcase the portrait aspect ratio, set against a clean white background.
Stop awkward cropping that cuts off important parts of your best portraits. Adapt one great photo for every purpose, from a square Instagram post to a wide YouTube banner. Simply tell the AI the aspect ratio you need, like 1:1, 4:5, or 16:9, and watch it resize your image perfectly. This tool is ideal for social media managers, photographers, and anyone looking to maintain a consistent and professional look across different online platforms without having to re-edit or reshoot.

Perfectly Frame Every Shot for Any Platform

A professional, photorealistic studio portrait of a woman against a solid white background, demonstrating a classic portrait aspect ratio.
Traditional resizing can lead to pixelated or stretched images. Our AI aspect ratio editor avoids this by adding new, context-aware detail instead of just scaling up the existing pixels. The AI analyzes your portrait's colors, textures, and lighting to generate a natural-looking extension of the background. This process ensures that your final image remains sharp, clear, and high-resolution, preserving the professional quality of your original portrait while fitting it into its new dimensions perfectly. Your subject stays crisp and in focus, surrounded by a flawlessly expanded scene.

Maintain Quality, No Matter the Size

A photorealistic, close-up portrait of a young woman with freckles and wavy hair, smiling serenely against a plain, light gray background.
It’s Fast: Go from a single-format portrait to multiple aspect ratios in seconds. It’s AI-Powered: Use generative AI to uncrop and expand your image, intelligently filling in the background without stretching or distorting the original. It’s Easy to Use: Simply upload your portrait and describe the new aspect ratio you want. No complicated tools or manual editing required. It's Versatile: Prepare your portrait for any platform, whether it’s for a social media profile, a website banner, or a printed portfolio. High-Quality Output: Download your newly framed portrait in high resolution, with every detail intact.

Why use Pixelcut's AI Portrait Aspect Ratio Editor?

A professional, photorealistic portrait of a woman with dark hair smiling serenely, set against a clean, white background, demonstrating a perfect portrait aspect ratio.
Social Media Content: Resize a single headshot to fit Instagram Stories (9:16), feed posts (1:1 or 4:5), and Facebook covers (16:9) seamlessly. Professional Portfolios: Create a uniform look for your online gallery by ensuring all your portraits share the same aspect ratio. E-commerce: Adapt model photos to fit various online marketplace formats, from wide banners to square product listings, without losing focus on the product. Print Projects: Prepare a favorite portrait for a specific frame size, ensuring no important details are cropped out during the printing process.

Portrait Aspect Ratio Use Cases

A beautiful, hyper-realistic close-up photo of a woman's face, exemplifying a portrait aspect ratio with a clean, simple background.

よくある質問

Pixelcutは200万人以上に愛されています

  • 私のお気に入りのアプリ

    素晴らしいアプリ、使いやすい。中小企業がさまざまなマーケティング資料を専門的に作成するための時間と費用を節約できるようになります。ありがとう。
    シェイリン D.

  • 最高の背景除去剤

    私の仕事には優れた背景除去剤が必要で、私はそれをすべて経験してきました。これは今のところ最高です。使い方はとても簡単で、結果は常に素晴らしいものになります。ピクセルカットさん、ありがとうございます！
    キラ・H

  • 大好きです

    驚くほど簡単で、バッグやアクセサリーに完璧な結果が得られます。プロのカメラマンが撮影したようです。
    メアリー J.

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