PDFConvertersOnline.comHow to crop an image
- Choose a JPG, PNG, WebP, HEIC or other picture. It opens with a crop box already on it.
- Drag the box into place and pull the white handles, or pick a ratio chip or type the width and height in pixels.
- Press Crop image and save the result in the original format, or as JPG, PNG or WebP.
Crop at full resolution, not screen size
The picture on your screen is a scaled-down view. When you press Crop, the box you drew is mapped back onto the real pixels of the original, so a 4000 × 3000 photo cropped to its middle half gives you a genuine 2000 × 1500 file, not a screenshot-sized copy. The width and height fields always show real pixels, which makes it easy to hit a size that a form or template asks for.
Which aspect ratio should I pick?
A ratio locks the shape of the box while you resize it. Here is what each chip is commonly used for:
| Ratio | Typical use |
|---|---|
| 1:1 | Square posts, product shots, avatars and app icons |
| 4:5 | Tall portrait posts that take up more of a phone feed |
| 9:16 | Full-screen vertical stories, reels and phone wallpapers |
| 16:9 | Widescreen: video thumbnails, slides, desktop wallpapers, website banners |
| 4:3 | The native shape of most phone cameras, tablets and older screens |
| 3:2 | The native shape of most DSLR and mirrorless cameras, and 4 × 6 inch prints |
The arrows button next to the chips swaps portrait and landscape, so 3:2 becomes 2:3 for a tall print. Choose Free to drag each side independently.
Cropping versus resizing
Cropping removes the parts of the picture you don't want; it never stretches or shrinks what is left. If you also need the final file to be, say, exactly 1080 pixels wide, crop first to get the framing right, then scale it with Resize Image. If the file is too heavy afterwards, Compress Image can bring the size down.
File formats and quality
By default the cropped picture is saved in the same format as the one you opened. PNG and WebP keep transparency. JPG and WebP are saved at high quality (92%), which is visually identical for photos but does mean the picture data is encoded again. Pictures that arrive in HEIC or AVIF come out as JPG, because many apps and websites still can't open those formats. Location and camera details stored inside the original are not copied into the cropped file.
Private by design
The whole crop happens in this browser tab using your device's own processor. Your photo is never sent over the network, so it is safe to crop ID scans, family photos or unreleased product shots here.
More ways to use this tool
Frequently asked questions
Will cropping reduce the quality of my photo?
The pixels you keep are copied one to one, with no scaling. For JPG and WebP the result is saved again at 92% quality, which you won't see in normal viewing. Choose PNG if you need a bit-for-bit copy of the kept area.
How do I crop to an exact size like 600 × 400 pixels?
Choose Free, then type 600 in Width and 400 in Height. The box keeps its center and you can drag it to the right spot. If the size is larger than your photo, it stops at the photo's edge.
Can I crop on my phone?
Yes. The box and its handles respond to touch. Drag inside the box to move it and drag a corner to resize. On small screens the settings appear under the picture.
Why can't I make the box any bigger?
The crop area can't go past the edge of the picture. With a ratio locked, the largest box is limited by the shorter side. Press Largest area to fill as much of the image as the ratio allows.
Can I crop several images at once?
This tool crops one image at a time so you can frame each one by hand. To make many images the same size automatically, use Resize Image with its crop-to-fill option.