Compress image
Shrink your JPG, PNG or WEBP images with barely any quality loss.
How to compress an image online
Upload your image
Drag or select the JPG, PNG or WEBP image you want to compress.
Choose the compression level
Pick extreme, recommended, or low compression depending on how much space you want to save.
Download your compressed image
In seconds you'll have your image ready, lighter, at the quality you chose.
Why compress your images on PDFDocks?
Most online image compressors work the same way under the hood: you upload your photo to a server, it gets processed there, and then it's sent back to you. During that trip, your image — which could be a personal photo, a scanned document, or work material — travels across the internet and ends up, even if just for a few seconds, in someone else's hands. PDFDocks works differently: compression happens with JavaScript, right inside your own browser, using the device's native canvas to re-encode the image at a lower quality. The file never leaves your computer or phone, there's no upload, no server in between. This also means you're not dependent on your connection speed to upload large files, and the process is practically instant because it happens on your own device.
Is it safe to compress images online with PDFDocks?
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Yes. Unlike most similar tools, your image is never uploaded to a server: compression happens directly in your browser.
Is there a limit on size or number of images?
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We haven't set any artificial limits. Since all processing happens in your browser, you can compress as many images as you want, of any size. The only limit is the memory available on your device.
What image formats does this tool support?
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You can upload JPG, PNG or WEBP images. By default the result is generated in WebP, the format that compresses best, though you can choose JPG if you need maximum compatibility.
Do I need to install any software?
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No, you don't need to install anything. It works directly from your browser, on both computer and mobile.
How much does the image size shrink?
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It depends on the level chosen and the original image. With extreme compression you can save over 80% on detailed photos, while low compression is barely noticeable in quality.
Does image quality get lost when compressing?
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With the recommended level, quality loss is practically unnoticeable to the naked eye. More aggressive levels prioritize size savings over visual fidelity.
Images
Resize image
Change the width and height of your images in pixels or by percentage.
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.
