Image Resize & Convert
Resize and convert images between JPG, PNG, and WebP with aspect-ratio and preset control.
Resize images to exact pixel dimensions, percentages, or fit them inside a box while locking the aspect ratio, and convert between JPG, PNG, and WebP at the same time. Processing happens locally with canvas — no upload, no queue, no watermark.
How to use Image Resize & Convert in 3 simple steps
Select Your Files
Drag and drop your document directly into the browser. Your file stays on your hardware and is never transmitted across the network.
Configure Options
Customize parameters, page sequence, orientation, or compression presets with instant interactive live feedback.
Save & Download
Click the action button. The new document is compiled in memory and downloaded straight to your device.
Frequently Asked Questions
What is the difference between exact and fit modes?
Exact produces precisely the width and height you enter. Fit scales the image to fit inside your target box without distortion, so one dimension may come out smaller than the box.
Can PDFMiniFly change DPI/PPI metadata?
No — browsers cannot reliably write DPI metadata into JPG/PNG files, so PDFMiniFly does not pretend to. This tool changes real pixel dimensions; use your target software to set print DPI.
Are my files uploaded to a server?
No. PDFMiniFly processes everything locally inside your browser. Your document never leaves your device, and once the app is installed it also works offline.
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