Resize Image Online
Resize JPG, PNG and WebP images to exact dimensions while keeping your images private.
100% In-Browser Resizing: Your images are processed entirely locally on your device. Zero server upload.
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Supports JPG, PNG, and WebP up to 25 MB • Completely private & local
Client-Side In-Browser Image Resizing
PrintReady lets you resize JPG, PNG, and WebP images directly in your browser using the HTML5 Canvas API. Because all pixel resampling occurs on your computer or mobile device, your personal photos and graphics are never transmitted to any third-party server or cloud database.
Aspect Ratio Locking & Mathematical Scaling
By default, the aspect ratio is strictly locked. When you enter a new pixel width, the matching height is calculated mathematically (Height = Width ÷ Aspect Ratio). You can also unlock the aspect ratio to stretch or set independent horizontal and vertical dimensions.
Understanding Downscaling vs. Upscaling
Downscaling an image reduces pixel dimensions, making file sizes smaller and web pages load faster without visual loss. Upscaling increases pixel dimensions, but please note: upscaling increases pixel dimensions but cannot recreate lost detail. For best clarity, always start with the highest-resolution source available.
Frequently Asked Questions
Downscaling reduces total pixels while maintaining visual sharpness. Upscaling interpolates pixels with bicubic smoothing, but cannot recover lost lens details.