Padding rather than cropping to reach a frame
When the edges matter — a diagram, a screenshot, a caption — padding keeps them where a crop would remove them. Match the fill to the destination background for an invisible margin.
Image Padding Resizer
Padding grows the canvas rather than covering the picture: every original pixel survives and a band of background is added around it. Set the thickness and the fill here — the same operation supplies the margin a near-square product photo needs to reach a true square.
選擇檔案
Upload an image to pad with background
或點擊下方按鈕選擇檔案 · 圖片可直接 Ctrl+V 貼上
JPG、PNG、WEBP · 最多 10 張圖片 · 每張 20 MB · 瀏覽器內處理
已選圖片 (0)
Image Padding Resizer常見問題
What is the difference between padding and a border?
Padding enlarges the canvas and leaves the image alone; a border is drawn over the image's own outer pixels and keeps the size.
Can I pad with a transparent background?
Yes, in a format that carries alpha — PNG or WebP rather than JPEG, which fills with a solid colour.
Will my original file be changed?
The result is downloaded as a separate file. Keep your original until you have checked the Padded canvas.
What should I check before using the result?
Open the Padded canvas in the application that consumes it and spot-check the parts that matter to you; the original file stays untouched if you need to re-run with different options.
關於此操作流程
Before downloading the result
Open the Padded canvas next to the original at full size and check text edges, faces, and flat backgrounds; re-encoding softens detail long before it looks wrong in a thumbnail.
What this image padding resizer does
Use this tool when an image needs to fit a fixed canvas but the original picture should remain visible. The tool scales the image into the target width and height, then fills the unused space with the background color you choose. This is useful for square product images, profile pictures, thumbnails, and social media layouts where cropping would remove important details.
The output dimensions are exact pixel dimensions. The added area becomes part of the new canvas, so the downloaded file has the size you entered even when the source image has a different shape.
How to add padding to an image
- Select one or more JPG, PNG, WEBP, or SVG images, or drag them into the upload area.
- Enter the target width and height in pixels.
- Choose Keep whole image when every part of the photo must stay visible. Choose Crop to fill when the image should cover the complete canvas.
- Pick a background color and an output format.
- Select Create & Download. One result downloads directly. Multiple results are grouped into a ZIP file.
When padding is better than cropping
Cropping works well when the subject can lose some of the edges. Padding is safer for product photos, screenshots, logos, documents, and portraits where the full frame matters. A neutral background can also make a mixed set of images look more consistent without changing the source composition.
Privacy and file handling
Image processing happens in your browser. The page creates the result with the Canvas API and downloads it to your device. The tool does not need an image upload endpoint for this workflow. Keep the browser tab open until the download finishes, especially when processing several large images.
Frequently Asked Questions
Does padding crop the original image?
The Keep whole image option fits the complete image inside the target canvas. Any unused area is filled with the selected background color. Use Crop to fill only when you accept trimming the edges.
Can I process more than one image?
Yes. Select multiple supported image files, apply the same canvas settings, and download the results as a ZIP archive.
Will the output have the exact width and height I enter?
Yes. The canvas uses the target width and height in pixels. Check the preview and the downloaded file before submitting it to a platform with its own image rules.