Three simple steps
- Choose the PDF you want to reduce.
- Select balanced compression for smaller images or lossless compression to preserve image data.
- Review the size reduction and download the compressed copy.
Drop your PDF here
Choose a compression level and create a smaller copy.
One PDF · Up to 50 MB · 100 pagesReady to compress
The original file will not be changed.
Organize PDF guide
How to use Compress PDF
Make a PDF easier to email, store, or submit while retaining its pages and readable content.
Compression choices
- Lossless mode recompresses document structures without changing image quality.
- Balanced mode may convert suitable images to JPEG when that makes the file smaller.
- A download is not created when processing would make the file larger.
Frequently asked questions
Will compression change my original PDF?
No. Compression creates a separate download.
Why was no smaller file created?
Some PDFs are already optimized or consist mostly of data that cannot be reduced safely.
What is the difference between compression modes?
Lossless mode preserves image data; balanced mode may recompress suitable images for a smaller result.