BigQTools

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調整圖片尺寸

按像素或百分比改尺寸，保持比例。

把images拖到這裡

JPG, JPEG, PNG, WEBP, GIF, BMP… · up to 100 MB per file · up to 20 files · 也可以用 Ctrl + V 貼上檔案

檔案在 2 小時后刪除，你也可以下載后立即刪除。

調整圖片尺寸的使用方法（3 個步驟）

  1. Add images to resize

    Tap or click to choose up to 20 images, or drag them onto the page. They can also come from Google Drive or a direct download link.

  2. Enter the new size

    With Resize by set to Pixels, fill in Width, Height or both. Switch to Percentage to scale proportionally; Scale starts at 50%.

  3. Resize and download

    Click Resize images, then download each file, grab the ZIP or save to Google Drive. For even smaller files, continue to Compress image.

功能特色

Resize image scales up to 20 pictures at once, either to pixel dimensions or by percentage. It’s the quick fix when a website, online store or application form wants photos exactly 1200 px wide, or when phone photos are too large to send. The aspect ratio is always kept: leave one field empty and the other side is calculated, fill in both and the image fits inside that box.

  • Resize by pixels, up to 20,000 px per side, or by percentage from 10% to 400%.
  • Enter only a width or only a height and the other side follows the original proportions.
  • Enter both and the image scales to fit inside that box, never stretched or squashed.
  • Up to 20 images per run with the same settings, plus a ZIP when there are several results.
  • Keeps the original format: a PNG stays a PNG and a WebP stays a WebP.
  • Results are renamed with “-doi-kich-thuoc” added, e.g. “product-01-doi-kich-thuoc.jpg”.

常見問題

Will my image be distorted if I enter both width and height?

No. The image scales to fit inside that box and keeps its proportions, so one side may come out smaller than you typed. In a 1200×1200 px box, a landscape photo ends up 1200 px wide and a portrait one 1200 px tall.

Does enlarging to 200% make a photo sharper?

No. Upscaling fills in new pixels from the existing ones without adding real detail, so the result can look softer. Start from the largest original you have.

How do I get an image of exactly 1280×720 px?

Since the ratio is always kept, first crop the photo to 16:9 with Crop image, then continue to Resize image and set the width to 1280 px.

Does making an image smaller reduce its file size?

Usually by a lot, because there are fewer pixels to store. If it’s still too heavy, send the result on to Compress image without uploading it again.

壓縮圖片 把 JPG、PNG、WebP 圖片压小，适合网頁和聊天。 轉换圖片格式 把圖片轉成 JPG、PNG、WebP、AVIF、GIF、BMP 或 TIFF。 裁切圖片 裁成正方形、4:3、16:9 或自訂區域。 圖片轉 PDF 把 JPG、PNG、WebP 圖片合成一個 PDF。 調整影片解析度 縮放到 1080p、720p、480p 或自訂尺寸。