PDFDrawerResize an image — exact pixels or percent
To resize an image, drop it above and set the new size — for example, a 4000 × 3000 photo scaled to 25% becomes 1000 × 750, or type a width of 1200 px with the aspect lock on and the height works itself out — then download the resized copy; the original is never touched.
In pixel mode with the lock on, fill in just the width or the height. Output keeps the input's format.
🔒 Your files never leave your device. This tool runs entirely in your browser — nothing is uploaded to a server, so the document you open is the only copy that ever exists.
How it works
- Drop the image to resize.
- Choose percentage scaling, or exact pixels with the aspect lock doing the maths.
- Click Resize image and download the resized copy.
About this tool
Resizing is the most literal of image jobs: make this picture exactly the dimensions the destination demands — the 1200-pixel-wide banner, the 600 × 600 listing photo, the avatar that's square or nothing. This tool scales by percentage when you're thinking proportionally (“half size”) and by exact pixels when a spec is a spec, with an aspect-ratio lock that does the arithmetic so a photo never comes out stretched or squashed by accident.
Two honest notes about what resizing can and can't do. Downscaling is clean and also the most effective file-shrink there is — quarter the dimensions and the file typically falls by far more than any quality slider achieves, which is why the Image Compressor offers a width cap too. Upscaling is allowed (up to 400%), and the browser's smoothing makes it respectable — but no tool can invent detail that wasn't captured; an enlarged image will be softer than a natively large one, and the result panel states the final dimensions so there are no surprises.
The work happens on a canvas in your browser, the original file is never altered, and the output keeps your input's format — a PNG stays a PNG, a JPG stays a JPG. If the goal after resizing is a different format as well, the Image Converter is one click away in the related tools.
Frequently asked questions
How do I resize without distorting the picture?
Keep the aspect lock ticked and set only one dimension in pixel mode — the other is calculated from the original proportions. Or use percentage mode, which can't distort.
Can I make an image bigger?
Yes, up to 400%. The browser smooths the enlargement, but genuinely new detail can't be created — expect a softer result than an originally large photo.
Does resizing reduce file size?
Downscaling, dramatically — dimensions drive file weight more than anything else. Upscaling increases file size.
What format is the output?
The same as the input: JPG in, JPG out; PNG in, PNG out; WebP in, WebP out.
What if I set both width and height with the lock on?
With the lock on, set just one side. If both are filled in, the width wins and the height follows the aspect ratio.