Resize image
Change the width and height of your images in pixels or by percentage.
How to resize an image online
Upload your image
Drag or select the image you want to resize.
Enter the new size
Type the width and height in pixels, or choose a percentage of the original size.
Download the resized image
Your image is generated instantly with the new dimensions, ready to download.
Why resize your images on PDFDocks?
Resizing an image — for a website, a social network, or an email — shouldn't require uploading your file anywhere. PDFDocks resizes your images directly in your browser, using the device's native canvas to recalculate the pixels to your chosen size. The file never leaves your computer or phone, so it doesn't matter if the image contains personal or confidential information. You also don't depend on your connection speed or whether the server is busy with other users: the process is instant because it happens on your own device.
Is it safe to resize images online with PDFDocks?
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Yes. Your image is never uploaded to a server: resizing happens directly in your browser with JavaScript.
Can I keep the original aspect ratio?
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Yes, you can lock the aspect ratio so that when you change the width, the height adjusts automatically without distorting the image.
Can I resize by percentage instead of pixels?
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Yes, you can choose between exact pixel dimensions or simply a percentage of the original size.
Is there an image size limit?
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We haven't set any artificial limits. The only real limit is the memory available on your device.
What formats does this tool support?
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You can resize JPG, PNG and WEBP images.
Will my image lose quality when enlarging it?
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When shrinking, quality holds up very well. When enlarging an image beyond its original resolution, it's normal to lose some sharpness, since detail that didn't exist can't be invented.
Images
Compress image
Shrink your JPG, PNG or WEBP images with barely any quality loss.
Crop image
Crop your images by selecting exactly the part you want to keep.
Rotate image
Rotate your images 90°, 180° or 270° in seconds.
Convert to JPG
Convert PNG, WEBP, BMP or GIF images to JPG format.
Convert JPG to PNG
Convert your JPG photos to PNG, ideal if you need a transparent background.
Convert to WebP
Convert your JPG or PNG images to WebP format, lighter for the web.
Convert WebP to JPG
Convert a WebP image to JPG, compatible with any program or device.
Add watermark to image
Add text or your logo as a watermark on your images.
Remove EXIF metadata
Remove GPS location and other hidden data from your photos before sharing them.
Blur image
Blur or pixelate an area of your image to hide faces, license plates or sensitive info.
Add border to image
Add a colored border around your image, with the thickness you prefer.
Crop image to circle
Crop your image into a circular shape, ideal for profile pictures.
Create animated GIF
Combine several images into an animated GIF: you choose the order and speed.
Compare images
Compare two images side by side and slide to see the differences.
Extract color palette
Extract the dominant colors from an image along with their hex code.
