Reduce file size locally while maintaining visual fidelity. Select your desired compression ratio below.
or drag and drop PDF files here
Oversized PDF files can block email transmissions and slow down web uploads. MyToolSwift offers an institutional-grade, client-side PDF compressor that allows you to dictate your exact quality-to-size ratio. Unlike cloud alternatives that force arbitrary compression algorithms upon your files, our engine empowers you to choose between High Quality (75%), Standard (50%), or Extreme (25%) compression—all processed locally within your browser's memory without a single byte being uploaded to a server.
Yes. Our compression matrix intelligently downsamples complex images and vector layers while maintaining the baseline contrast necessary for crisp, readable text, even at the 25% ratio.
Never. The entire compression process executes strictly within your device's native RAM footprint. It is 100% private and secure.
Because the processing happens locally, there is no hard server limit. You can safely compress files over 100MB depending on your device's available memory.
Currently, this tool is optimized for single-file precision to ensure the highest quality-to-size ratio. For merging files, please use our PDF Merger tool.
Absolutely. While our engine optimizes image data and vector assets, the original text and metadata layers are preserved for searchability and selection.