PDF Compressor
pdf-compressorReduce PDF file size by choosing image quality and page resolution, then download the compressed copy.
Choose a PDF to compress
Processing happens in your browser and needs no API
🔎 Reduce PDF file size with adjustable compression
Compress a PDF by choosing page resolution and image quality, then compare the original file size with the compressed result before downloading.
Use stronger compression when file size is the priority, or choose higher quality for documents with small text and detailed images.
- Choose balanced or stronger compression.
- Compare original and compressed file sizes.
- Core processing runs in the browser without an API.
💡 Useful information
Compress PDF files online for free and reduce file size. Choose compression quality and page resolution, compare sizes and download the smaller PDF.
- Runs directly in a modern browser.
- Works on phones and desktop computers.
- Reuse it without creating an account.
ℹ️ How to use
- Enter your data or choose the required file.
- Adjust the available options.
- Run the tool and review the result.
- Copy or download the result when needed.
❔ Frequently asked questions
How does this reduce PDF file size?
The tool redraws PDF pages at the quality and resolution you choose, then creates a new PDF that is often smaller.
Which setting gives the smallest PDF?
Choose stronger compression and lower page resolution when file size matters most, or higher quality when page clarity matters more.
Will text stay selectable and searchable?
When pages are rebuilt as images, text may no longer be selectable or searchable, so keep the original if you need searchable text.
Is my PDF uploaded?
Processing happens in your browser and does not require an API or an external upload service.