Compress PDF – Free Online Tool
Optimize PDF size when lossless reduction is possible. Open the tool directly in your browser using LifeTools.
How to use Compress PDF
- Select the document or files required by this tool.
- Choose any available options, then process the document.
- Download the generated result and check it before sharing.
About this tool
Compression is lossless and may not reduce every PDF. The original document should be checked after download.
Browse all LifeTools utilities
Why might a PDF not become smaller?
PDF files may already contain compressed images, fonts and document streams. Lossless optimization preserves document content and therefore cannot guarantee a reduction for every file.
How to check the result
Compare the downloaded file size with the original and inspect the pages before deleting your source file. For large scanned PDFs, image-heavy content often determines the file size.
Other PDF utilities
Use Merge PDF to combine documents or Split PDF to save pages separately.