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Compress Images Online
Resize and compress supported images, adjust quality and export JPG or WebP.
Use the tool
Start the interactive tool on the main PDF Engine page. Selected files are processed in your browser for supported operations.
How to use Image Compressor
- Select one or more images.
- Choose quality, maximum width and output format.
- Preview file sizes and download individual images or a ZIP.
When it is useful
Smaller images can speed up websites, reduce email attachments and make uploads easier.
Important limitations
JPG and WebP are lossy formats; transparent backgrounds may become white when converted. Always inspect image detail and transparency.
Privacy and file handling
This tool is designed to process supported files locally in your browser; the static website does not provide server-side file storage. Your browser still downloads the JavaScript libraries required for some operations from third-party content delivery networks. See the Privacy Policy for details. Do not use the output without checking it, and keep your original file.
Frequently asked question
Try a moderate quality setting first, then compare image quality and file size before replacing an original.
Read the image compression guide for step-by-step instructions, tips, and limitations.
Read the image compression guide for step-by-step instructions, tips, and limitations.
Need a different operation? Browse all PDF Engine tools or read our PDF guides.