PDF Compressor
Reduce PDF file size for email and upload.
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Supported: PDF · Limited only by your device memory
Your privacy matters. Files processed locally never leave your device.
How to use PDF Compressor
- 1Upload your file
- 2Configure your options
- 3Process the file
- 4Download the result
About this tool
Shrink large PDF documents so they fit within attachment and upload limits. Light mode rewrites the file structure and keeps text selectable; Strong mode re-renders each page as an image for much bigger savings.
FAQ
What is the difference between Light and Strong?
Light re-saves the document structure — always safe, keeps text selectable and searchable, but the saving is modest. Strong renders every page to a JPEG and rebuilds the PDF, which shrinks image-heavy files dramatically at the cost of selectable text.
Why did Light mode barely change the size?
Most PDF weight is embedded images and fonts, which Light mode deliberately leaves untouched. If the file is image-heavy, use Strong mode.