Tools24 · File Compression
Image & PDF Compressor
Compress images and PDF files to reduce file size quickly and easily.
Drag & Drop Your File Here
or
Supports JPG · JPEG · PNG · WEBP · BMP
Your files are processed directly in your browser. Files are not uploaded to our server.
File Ready!
Your File Has Been Compressed
Preview and download your optimized file below.
Original Size
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Compressed Size
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Space Saved
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Reduction
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Format
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Image & PDF Compressor Online
Tools24 Image & PDF Compressor is a powerful browser-based tool that allows you to reduce the file size of your images and PDF documents quickly and securely. Whether you need to meet email attachment limits, upload files to a web portal, or simply save storage space, our compressor provides the perfect solution without compromising on quality.
Because all processing happens locally in your browser using advanced HTML5 Canvas and WebAssembly technologies, your files are never uploaded to a server. This ensures 100% privacy and instantaneous processing speeds.
How to Compress an Image
- Select an image by dragging and dropping it onto the upload area or clicking "Select File".
- Choose your desired target file size (e.g., 100 KB) or switch to Manual Quality mode.
- Select your preferred output format: JPG, PNG, or WEBP.
- If needed, enable the "Resize Before Compression" option to change image dimensions.
- Click the "Compress Image" button and wait for the process to finish.
- Compare the original and compressed sizes, then click "Download File".
How to Compress a PDF
- Select the PDF Compressor tab at the top of the tool.
- Upload your PDF file using the drag-and-drop area or file selector.
- Review the automatically generated page thumbnails and remove any unwanted pages.
- Select a compression level: High Quality, Balanced, or Maximum Compression.
- Choose the desired DPI (Dots Per Inch) for the output PDF.
- Click "Compress PDF" and download your optimized document.
Features
Image compression
PDF compression
Target KB size
Target MB size
JPG compression
PNG optimization
WEBP compression
PDF page preview
PDF page removal
PDF quality control
Smart binary search compression
Image resizing
Before/after comparison
Drag & drop interface
Fast browser processing
No server upload
100% free to use
Dark mode support
Frequently Asked Questions
Switch to the Image Compressor, select the "Target File Size" mode, and click the "100 KB" button. Then click "Compress Image". Our smart algorithm will automatically adjust the quality to get as close to 100 KB as possible.
Yes, our tool fully supports JPG and JPEG compression. JPG is a lossy format, meaning reducing the quality will significantly reduce the file size while keeping the dimensions the same.
Yes, but PNG is a lossless format. The quality slider does not affect PNGs the same way it affects JPGs. If you set a target size for a PNG, our tool may resize the image dimensions to meet that target, or you can convert it to JPG/WEBP for better compression.
You can try. Select the PDF Compressor, choose "Maximum Compression" and set the DPI to 72. This will rasterize the PDF pages into optimized images and rebuild the PDF, which is highly effective for image-heavy PDFs. Note that text-heavy PDFs may not shrink as drastically.
For JPG and WEBP, yes, lowering the quality setting introduces compression artifacts. However, our "Smart Compression" finds the highest possible quality that still meets your target file size, ensuring the best balance between size and visual fidelity.
Absolutely not. All file processing is done entirely inside your browser using JavaScript. Your images and PDFs never leave your computer, ensuring complete privacy and security.
Currently, the tool processes one file at a time to provide the most accurate target size calculations and previews. You can quickly compress another file by clicking the "Compress Another File" button after processing is complete.
Compression itself does not remove pages, but you can manually remove pages before compression. When the PDF preview loads, click the 'X' on any thumbnail to exclude that page from the final compressed PDF.