Protect PDF

Encrypt your PDF files with a password.

Drop an image to start

Drop files here or click to browse
Supports JPG, PNG, WebP, AVIF • Up to 50MB

Secure

Fast

Private

Supported Formats

We support all modern image formats for maximum compatibility.

JPG

Photos

PNG

Transparent images

WebP

Modern

AVIF

High-efficiency

BMP

Raw

TIFF

Pro workflow

High Quality

Advanced algorithms maintain excellent visual quality.

Lightning Fast

Process images in milliseconds directly in your browser.

100% Private

Files are processed locally and never uploaded to any server.

Responsive

Works perfectly on desktop, tablet, and mobile devices.

How to Resize Image Online

Upload Files

Select the PDF files you want to secure.

Set Password

Enter a strong password to encrypt your documents.

Encrypt

Download your protected files. They can now only be opened with the password.

Why Use Image-Resizer.net?

The fastest and most reliable way to resize images online.

Lightning Fast

Process images instantly in your browser.

Secure & Private

Your files never leave your device.

High Quality

Best-in-class algorithms for perfect results.

Free Forever

No hidden costs or watermarks.

Frequently Asked Questions

Yes! Our image tool is 100% free to use with no hidden costs, daily limits, or watermarks.

We currently support JPG, PNG, WebP, AVIF, and TIFF formats for both import and export.

Absolutely. Your images are processed securely via HTTPS and are automatically deleted from our servers immediately after processing.

We use smart algorithms to optimize file size while maintaining excellent visual quality.

Yes, our tool is fully responsive and works perfectly on all devices including iPhones, iPads, and Android phones.