Compress PDF
Reduce the size of scanned and photo-heavy PDFs.
Make your PDF lighter.
Everything happens on your device: nothing is uploaded to the internet.
Works best with scanned and photo-heavy PDFs. Pages become images, so the text is no longer selectable.
Available in: 
Compress PDF: what it is for
The PDF compressor reduces the file size by shrinking the page images, with three levels: light, recommended and maximum compression.
The PDF is never uploaded to a server: everything is done in your browser, which keeps contracts and documents private.
How to use
- Upload the PDF.
- Choose the compression level.
- Download the smaller PDF.
When to use it
- Sending large PDFs by email.
- Websites that limit file size.
- Saving storage space.
Frequently asked questions
Why didn't my PDF get smaller?
Text-based PDFs (exported from Word, for example) are already light. Compression works best on scanned PDFs and PDFs with lots of images.
Is the PDF uploaded to a server?
No. The file is processed in your browser and never leaves your device. You can use it with confidential documents.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 tools are free and run right in your browser.