Batch Resize Images Online — Resize Multiple Photos Free

Need to resize dozens or hundreds of images at once? The MyPDF Batch Resize tool processes multiple images simultaneously — set your target dimensions once and apply them to all files.

How to Batch Resize Images

1. Upload multiple images (JPG, PNG, WebP — drag and drop entire folders).
2. Set the target dimensions, percentage, or maximum width/height.
3. Download all resized images as a ZIP archive.

Resize Options

Method	Example	Best For
Fixed dimensions	1200x800 px	Web thumbnails
Percentage	50% of original	Uniform scaling
Max width	1920 px max	Responsive web images
Max height	1080 px max	Gallery standardization

Practical Tips

• Use "max width" mode to resize images while preserving their aspect ratio — images smaller than the max are left unchanged.
• Process web images at 1920 px max width for optimal balance of quality and loading speed.
• Resize before uploading to your CMS to avoid storing unnecessarily large files on your server.

Does batch resize maintain aspect ratio?

Yes, by default. When you set one dimension (width or height), the other is calculated automatically. You can override this for forced dimensions.

Is there a limit on the number of images?

You can process hundreds of images at once. Processing happens in your browser, so speed depends on your device's capabilities.

Related Tools

• Resize Image — resize a single image with more options
• Compress Image — reduce file size after resizing
• Batch Convert Images — convert formats in bulk
• Change DPI — adjust image resolution